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BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 4:38 am
by BB+
Not sure which subforum to put this in, but as "derivatives" seem of interest, it seemed technical, and so I put it here.
Quoting http://rybkaforum.net/cgi-bin/rybkaforu ... ?tid=20683
I even installed the necessary kbbnkr 6-man tablebases, and Rybka still claimed draw, as do its [her?] derivatives, and as does (unfortunately) Naum. All other post-Crafty engines correctly identify that this is completely won for black, something that IDeA eventually agrees with after a very long time of interaction (though still not traced back to move 45, which it still thinks is a draw).
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45Other than the fact that IvanHoe (latest version) with no TBs doesn't give 0.00 after a few minutes, but rather -1.2 or so (already -0.8 at the early depths), while Rybka (again no TBs) starts with a positive score for White and then after a few seconds switches to 0.00, I haven't checked this much.

My impression is that the White pawns will eventually fall (maybe after the horizon), and then BBN vs R is a general win.

EDIT: Houdini 1.5 also shows a decent Black edge (no GTBs used). Only Rybka seems to give 0.00.
EDIT: TBs don't matter much, as all the pawns have to fall, and BBN vs R is going to be a strong Black advantage in any case. The real issue is how passed pawns are weighted.
EDIT: I checked an early IvanHoe, with the same result (-0.8 after a minute or so). I checked RobboLito, again with essentially the same result. So my observations/conclusion contrasts with that of the poster -- Rybka is the only engine I have that gives 0.00, and none of the derivatives I tested yielded this.

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 4:56 am
by kingliveson
My good friend Banks posted it on talkchess, but he is not correct in this case. I don't think further explanation is needed...

Code: Select all

 New game
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 1

Analysis by IPPOLIT 0.080a x64 1Gb:

1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Ka4 Be5 
  =/+  (-0.46)   Depth: 6/13   00:00:00  2kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Ka4 Be5 
  =/+  (-0.46)   Depth: 6/13   00:00:00  3kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Ka4 Be5 
     Depth: 7/15   00:00:00  4kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 
  =/+  (-0.38)   Depth: 7/15   00:00:00  5kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 
  =/+  (-0.38)   Depth: 7/15   00:00:00  5kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 
  =/+  (-0.40)   Depth: 8/15   00:00:00  7kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 
  =/+  (-0.40)   Depth: 8/16   00:00:00  8kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 
  =/+  (-0.40)   Depth: 9/17   00:00:00  12kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 
  =/+  (-0.40)   Depth: 9/17   00:00:00  13kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 6.c6+ Kd6 
  =/+  (-0.39)   Depth: 10/17   00:00:00  20kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 6.c6+ Kd6 
  =/+  (-0.39)   Depth: 10/17   00:00:00  21kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 6.Kd4 Bb5 
  =/+  (-0.37)   Depth: 11/19   00:00:00  33kN
1...Bb8 
     Depth: 11/24   00:00:00  82kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.Rf8 Bd3+ 6.Ka2 Kc7 7.Rf6 Nd5 8.Rf7+ Kc6 9.Rb7 
  =/+  (-0.38)   Depth: 11/24   00:00:00  101kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.Rf8 Bd3+ 6.Ka2 Kc7 7.Rf6 Nd5 8.Rf7+ Kc6 9.Rb7 
  =/+  (-0.38)   Depth: 11/24   00:00:00  102kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.Rf8 Ba7 6.Rf6 Nc6 7.Rf7+ Ke8 8.Rg7 Bxa6 9.Kb2 Bb8 
  =/+  (-0.35)   Depth: 12/25   00:00:00  128kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Bd3+ 4.Kb2 Kd7 5.Rg3 Bc4 6.Rg7 Bxa6 7.Kc3 Bb8 8.Kd4 Bb5 
  =/+  (-0.37)   Depth: 12/25   00:00:00  155kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Bd3+ 4.Kb2 Kd7 5.Rg3 Bc4 6.Rg7 Bxa6 7.Kc3 Bb8 8.Kd4 Bb5 
  =/+  (-0.37)   Depth: 12/25   00:00:00  164kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Rg3 Kc6 5.Rg7 Bd3+ 6.Kb2 Kd7 7.Rg3 Bc4 8.Rg7 Bxa6 9.Kc3 Bb8 10.Kd4 Bb5 
  =/+  (-0.37)   Depth: 13/25   00:00:00  199kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Rg3 Kc6 5.Rg7 Bd3+ 6.Kb2 Kd7 7.Rg3 Bc4 8.Rg7 Bxa6 9.Kc3 Bb8 10.Kd4 Bb5 
  =/+  (-0.37)   Depth: 13/25   00:00:00  212kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Rg3 Kc6 5.Rg7 Bd3+ 6.Kb2 Kd7 7.Rg3 Bc4 8.Rg7 Bxa6 9.Kc3 Bb8 10.Kd4 Bb5 
     Depth: 14/30   00:00:00  360kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
  =/+  (-0.47)   Depth: 14/30   00:00:00  407kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
  =/+  (-0.47)   Depth: 14/30   00:00:00  418kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
     Depth: 15/30   00:00:00  523kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
  =/+  (-0.62)   Depth: 15/30   00:00:00  668kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
  =/+  (-0.62)   Depth: 15/30   00:00:00  680kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Kc8 8.Rg8+ Nd8 9.Kb3 Bb8 10.Ka4 Bc4 11.Rg7 Be5 
     Depth: 16/32   00:00:00  938kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Ne7 11.Rf8 
  =/+  (-0.47)   Depth: 16/32   00:00:00  1096kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Ne7 11.Rf8 
  =/+  (-0.47)   Depth: 16/32   00:00:00  1181kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bd5+ 11.Ka4 Ke7 12.Rg6 
     Depth: 17/32   00:00:00  1439kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Ka3 
     Depth: 17/32   00:00:00  1905kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Kb5 Nd4+ 11.Ka5 Bb8 12.Rf6 Kd5 13.Kb6 
  =/+  (-0.57)   Depth: 17/34   00:00:00  1961kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Kb5 Nd4+ 11.Ka5 Bb8 12.Rf6 Kd5 13.Kb6 
  =/+  (-0.57)   Depth: 17/34   00:00:01  2047kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Kb5 Nd4+ 11.Ka5 Bb8 12.Rf6 Kd5 13.Kb6 
  =/+  (-0.57)   Depth: 18/34   00:00:01  2340kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Kb5 Nd4+ 11.Ka5 Bb8 12.Rf6 Kd5 13.Kb6 
  =/+  (-0.57)   Depth: 18/34   00:00:01  2438kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Bc2+ 10.Kb5 Nd4+ 11.Ka5 Bb8 12.Rf6 Kd5 13.Kb6 Ba4 
     Depth: 19/34   00:00:01  3683kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Kd7 13.Rb7+ Bc7 
  =/+  (-0.62)   Depth: 19/36   00:00:01  3888kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Kd7 13.Rb7+ Bc7 
  =/+  (-0.62)   Depth: 19/36   00:00:01  4012kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Be5 13.b5 Bd5+ 14.Kd3 
  =/+  (-0.58)   Depth: 20/36   00:00:02  5193kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Be5 13.b5 Bd5+ 14.Kd3 
  =/+  (-0.58)   Depth: 20/36   00:00:02  6064kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Be5 13.b5 Bd5+ 14.Kd3 
  =/+  (-0.58)   Depth: 21/36   00:00:03  8094kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Ke7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Bf1 8.Ka4 Bd3 9.Kb3 Bf5 10.Kc3 Bb8 11.Kc4 Be4 12.Rb6 Be5 13.b5 Bd5+ 14.Kd3 
  =/+  (-0.58)   Depth: 21/36   00:00:04  9273kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc6 9.Rh7+ Kc8 10.Rh8+ Kd7 11.Rh7+ Ne7 12.Kc3 Bb5 13.Rf7 Ke6 14.Rf8 Nd5+ 15.Kb3 
  =/+  (-0.58)   Depth: 22/41   00:00:06  12734kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc6 9.Rh7+ Kc8 10.Rh8+ Kd7 11.Rh7+ Ne7 12.Kc3 Bb5 13.Rf7 Ke6 14.Rf8 Nd5+ 15.Kb3 
  =/+  (-0.58)   Depth: 22/41   00:00:07  14740kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc6 9.Rh7+ Kc8 10.Rh8+ Kd7 11.Rh7+ Ne7 12.Kc2 Bb5 13.Kc3 Bb8 14.Kd4 Bc6 15.Kc4 Be4 16.Rg7 Be5 
  =/+  (-0.60)   Depth: 23/41   00:00:10  20583kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc6 9.Rh7+ Kc8 10.Rh8+ Kd7 11.Rh7+ Ne7 12.Kc2 Bb5 13.Kc3 Bb8 14.Kd4 Bc6 15.Kc4 Be4 16.Rg7 Be5 
  =/+  (-0.60)   Depth: 23/41   00:00:11  23063kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bc4 11.Kc3 Bg8 12.Kd4 Nb5+ 13.Ke4 Kc7 14.Rh8 Be6 15.Ke5 Bf7 16.Rh7 
  =/+  (-0.61)   Depth: 24/47   00:00:16  34475kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bc4 11.Kc3 Bg8 12.Kd4 Nb5+ 13.Ke4 Kc7 14.Rh8 Be6 15.Ke5 Bf7 16.Rh7 
  =/+  (-0.61)   Depth: 24/47   00:00:19  39230kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bb5 11.Kb3 Bc6 12.Kc4 Bb8 13.Rf6 Nb5 14.Rf7+ Bc7 15.Re7 Na3+ 16.Kd3 
  =/+  (-0.59)   Depth: 25/47   00:00:23  48565kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bb5 11.Kb3 Bc6 12.Kc4 Bb8 13.Rf6 Nb5 14.Rf7+ Bc7 15.Re7 Na3+ 16.Kd3 
  =/+  (-0.59)   Depth: 25/47   00:00:28  57021kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bb5 11.Kb3 Bc6 12.Kc4 Bd5+ 13.Kd4 Bg8 14.Rh8 Be6 15.Rh6 Bg8 
     Depth: 26/47   00:00:43  80799kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nd5 9.Rh7+ Nc7 10.Rh6 Bb5 11.Kb3 Bc6 12.Kc4 Bb8 13.Rf6 Nb5 14.Rf7+ Bc7 15.Re7 Na3+ 16.Kd3 
     Depth: 26/47   00:00:54  102mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc8 9.Kb3 Bb8 10.Rh6 Bb5 11.Re6 Kc7 12.Rh6 Kd7 13.Rg6 Be5 14.Rg5 Bf6 15.Rf5 Ke6 16.Rf2 Ne7 
  -/+  (-0.79)   Depth: 26/47   00:01:06  126mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc8 9.Kb3 Bb8 10.Rh6 Bb5 11.Re6 Kc7 12.Rh6 Kd7 13.Rg6 Be5 14.Rg5 Bf6 15.Rf5 Ke6 16.Rf2 Ne7 
  -/+  (-0.79)   Depth: 26/47   00:01:09  132mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc8 9.Rh6 Bb8 10.Kc3 Bb5 11.Re6 Bc7 12.Re4 Na7 13.Kd4 Nc6+ 14.Kd5 Bd3 15.Rg4 Bg6 16.Ke6 Ne5 
  -/+  (-0.86)   Depth: 27/48   00:01:34  180mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Nc8 9.Rh6 Bb8 10.Kc3 Bb5 11.Re6 Bc7 12.Re4 Na7 13.Kd4 Nc6+ 14.Kd5 Bd3 15.Rg4 Bg6 16.Ke6 Ne5 
  -/+  (-0.86)   Depth: 27/48   00:01:37  186mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rb3 Bc4 9.Rh3 Bb8 10.Kc3 Bg8 11.b5 Be5+ 12.Kd3 Bg7 13.Rf3 Kc7 14.Rg3 Bf6 15.Rg4 Bh8 16.c6 Bd5 17.Ra4 Nc8 
  -/+  (-0.86)   Depth: 28/48   00:01:57  226mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rb3 Bc4 9.Rh3 Bb8 10.Kc3 Bg8 11.b5 Be5+ 12.Kd3 Bg7 13.Rf3 Kc7 14.Rg3 Bf6 15.Rg4 Bh8 16.c6 Bd5 17.Ra4 Nc8 
  -/+  (-0.86)   Depth: 28/48   00:02:03  237mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rb3 Bc4 9.Rh3 Bb8 10.Kc3 Bg8 11.b5 Be5+ 12.Kd3 Kc7 13.Rf3 Nd5 14.Ke4 Bf6 15.Rg3 Be6 16.Rf3 Kb7 17.Rf1 Bg7 18.Rg1 Nc3+ 19.Kd3 Bf6 20.Rf1 Nd5 21.Ke4 
     Depth: 29/49   00:03:21  389mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Rg7 Bd3+ 7.Kb2 Nc8 8.Kb3 Bb8 9.Rf7 Bxa6 10.Ka4 Be5 11.Rh7 Bd3 12.Rh6+ Kd5 13.Rh1 Be4 14.Rc1 Bf4 15.Rf1 Bc2+ 16.Ka3 Be5 17.Rc1 Bf5 18.Ka4 Bd4 19.c6 Kd6 20.b5 Kc7 21.Re1 Nb6+ 22.Kb4 
  -/+  (-0.89)   Depth: 29/58   00:03:32  410mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Rg7 Bd3+ 7.Kb2 Nc8 8.Kb3 Bb8 9.Rf7 Bxa6 10.Ka4 Be5 11.Rh7 Bd3 12.Rh6+ Kd5 13.Rh1 Be4 14.Rc1 Bf4 15.Rf1 Bc2+ 16.Ka3 Be5 17.Rc1 Bf5 18.Ka4 Bd4 19.c6 Kd6 20.b5 Kc7 21.Re1 Nb6+ 22.Kb4 
  -/+  (-0.89)   Depth: 29/58   00:03:42  430mN

Code: Select all

New game
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 1

Analysis by RobboLito 0.09 x64:

1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Rf7 Kd7 
  =/+  (-0.57)   Depth: 6/13   00:00:00  2kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 
  =/+  (-0.48)   Depth: 7/15   00:00:00  7kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 
  =/+  (-0.56 ++)   Depth: 8/15   00:00:00  8kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Rf7 Bc8 5.Ka4 
  =/+  (-0.62)   Depth: 8/18   00:00:00  10kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Rf7 Be5 5.Ka4 Nd5 
  =/+  (-0.62)   Depth: 9/18   00:00:00  13kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 
  =/+  (-0.51)   Depth: 10/21   00:00:00  38kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.c6+ Kd6 
  =/+  (-0.49)   Depth: 11/21   00:00:00  52kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.c6+ Kd6 
  =/+  (-0.57 ++)   Depth: 12/22   00:00:00  76kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Rg3 Nc6 5.Rg7+ Ne7 
  =/+  (-0.65 ++)   Depth: 12/22   00:00:00  90kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Rg3 Nc6 5.Rg7+ Ne7 
  -/+  (-0.77 ++)   Depth: 12/26   00:00:00  173kN
1...Bb5 2.Rg3 Nc6 3.Rb3 Nb8 4.Kb2 Nxa6 5.Ka3 Kc7 6.Rh3 Bb8 7.Rh6 
  -/+  (-0.79)   Depth: 12/26   00:00:00  216kN
1...Bb5 2.Rg3 Nc6 3.Rb3 Nb8 4.Kb2 Nxa6 5.Ka3 Kc7 6.Rh3 Bd7 7.Rh6 Nb8 8.Kb3 Nc6 9.Kc4 Ne5+ 10.Kd5 
  -/+  (-0.71)   Depth: 13/26   00:00:00  338kN
1...Bb5 2.Rg3 Nc6 3.Rb3 Nb8 4.Kb2 Nxa6 5.Ka3 Kc7 6.Rh3 Bd7 7.Rh6 Nb8 8.Kb3 Nc6 9.Kc4 Ne5+ 10.Kd5 
  -/+  (-0.71)   Depth: 14/26   00:00:00  401kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc7 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Bb8 9.Rh7 Be5+ 10.Kb3 Bf6 
  -/+  (-0.73)   Depth: 15/28   00:00:00  566kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc7 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Bb8 9.Rh7 Be5+ 10.Kb3 Bf6 
  -/+  (-0.73)   Depth: 16/28   00:00:00  869kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc7 6.Kb2 Bxa6 7.Ra3 Kb7 8.Rh3 Bb8 9.Rh7 Be5+ 10.Kb3 Bf6 
  -/+  (-0.73)   Depth: 17/29   00:00:00  1163kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Rh7 Bb5 7.Kc3 Bb8 8.Kd4 Kd8 9.Rh8+ Kc7 10.Rh7 Kd7 11.Ke4 Bc6+ 12.Kd4 Ke6 
  -/+  (-0.74)   Depth: 18/38   00:00:01  3684kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Bb8 11.Rd7 Nc6+ 12.Ka4 Bf4 13.b5 Bc2+ 14.Ka3 Bc1+ 15.Ka2 Nb4+ 16.Ka1 
  -/+  (-0.80)   Depth: 19/38   00:00:02  4934kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rg7 Kd4 10.Rg8 Be4 11.Kb5 Bb8 12.Kb6 Bh7 13.Rg7 
  =/+  (-0.69)   Depth: 20/38   00:00:04  8938kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rg7 Bb8 9.Ka4 Nd4 10.Ka5 Bd3 11.Kb6 Bb5 12.Rg8 Be5 13.Rf8 Kd5 14.Rd8+ Kc4 
  =/+  (-0.70)   Depth: 21/38   00:00:05  11651kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rg7 Bb8 9.Ka4 Nd4 10.Ka5 Bd3 11.Kb6 Bb5 12.Rg8 Be5 13.Rf8 Kd5 14.Rd8+ Kc4 
  -/+  (-0.78 ++)   Depth: 22/46   00:00:07  15327kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rh7 Bc2 12.Rh6+ Kd5 13.Kb6 Ba4 14.Rh8 Bf4 15.Rd8+ Kc4 
  -/+  (-0.73)   Depth: 22/46   00:00:08  16293kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rh7 Bc2 12.Rh6+ Kd5 13.Kb6 Ba4 14.Rh8 Be5 15.Rh7 Bb5 16.Rf7 Bb8 
  -/+  (-0.81 ++)   Depth: 23/46   00:00:11  22554kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rg7 Be5 12.Rg8 Bc7+ 13.Ka6 Kd5 14.Kb7 
  -/+  (-0.88)   Depth: 23/46   00:00:16  29498kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rg7 Be5 12.Rg8 Bc7+ 13.Ka6 Kd5 14.Kb7 
  -/+  (-0.96 ++)   Depth: 24/46   00:00:25  44725kN
1...Bb5 2.Rg3 Nc6 3.Rb3 Nb8 4.Rh3 Nxa6 5.Rh8+ Be8 6.Rh4 Bb8 7.Kb2 Bg3 8.Rg4 Be5+ 9.Kb3 Nc7 10.Rg5 Bf7+ 11.Ka4 Bf6 12.Rf5 Nd5 13.b5 Kc7 14.Ka5 Be6 15.Rf3 Bc3+ 16.Ka4 
  -/+  (-0.96)   Depth: 24/46   00:00:30  55071kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rh7 Kc4 10.Rh4+ Nd4 11.Ka5 Bf3 12.Ka6 Bb8 13.Kb6 Bg3 14.Rh3 Be1 15.b5 Bd5 16.Rh5 Bb4 17.c6 Bc5+ 18.Kc7 Nxb5+ 19.Kd7 
  -/+  (-0.97)   Depth: 25/46   00:00:48  88815kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rh7 Bc2 12.Rh6+ Kd5 13.Kb6 Ba4 14.Rh8 Be5 15.Rh6 Bb5 16.Rh7 Bc6 17.Rh6 Bd7 18.Rh7 Bb5 19.Rh4 Be8 20.Rh7 Bc6 
  -/+  (-0.96)   Depth: 26/46   00:00:58  108mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bd1+ 10.Ka5 Bb8 11.Rh7 Bc2 12.Rh6+ Kd5 13.Kb6 Ba4 14.Rh8 Be5 15.Rh6 Bb5 16.Rh7 Bc6 17.Rh6 Bd7 18.Rh7 Be8 19.Rb7 Bc6 20.Rh7 Bg3 21.Rg7 Be5 
  -/+  (-1.04 ++)   Depth: 27/47   00:01:36  181mN
1...Bb5 2.Rg3 Kc7 3.Kb2 Bxa6 4.Ra3 Kb7 5.Rf3 Nc8 6.Kc3 Bb8 7.Kd4 Na7 8.Rf7+ Bc7 9.Rh7 Nc6+ 10.Kc3 Bb5 11.Kb3 Nd4+ 12.Kc3 Ne2+ 13.Kb3 Nf4 14.Rh6 Nd3 15.Re6 Nf4 16.Rh6 
  -/+  (-1.12 ++)   Depth: 27/51   00:02:12  249mN
1...Bb5 2.Rg3 Kc7 3.Kb2 Bxa6 4.Ra3 Kb7 5.Rh3 Nc8 6.Kb3 Bb8 7.Rh6 Bb5 8.Re6 Bc7 9.Kc3 Na7 10.Re7 Nc6 11.Rh7 Ba6 12.Kb3 Nd4+ 13.Kc3 Ne6 14.Re7 Nf4 15.Rh7 Nd5+ 16.Kb3 Kc6 17.Rh6+ Kb5 
  -/+  (-1.12)   Depth: 27/51   00:02:14  253mN
1...Bb5 2.Rg3 Kc7 3.Kb2 Bxa6 4.Ra3 Kb7 5.Rh3 Nc8 6.Kb3 Bb8 7.Rh6 Bb5 8.Re6 Bc7 9.Kc3 Na7 10.Re7 Nc6 11.Rf7 Nd8 12.Re7 Bf1 13.Re4 Ba6 14.Kd4 Nc6+ 15.Kd5 Bb5 16.Rg4 Ne7+ 17.Ke6 
  -/+  (-1.12)   Depth: 28/51   00:02:40  304mN
1...Bb5 2.Rg3 Kc7 3.Kb2 Bxa6 4.Ra3 Kb7 5.Rh3 Nc8 6.Kb3 Bb8 7.Rh6 Bb5 8.Re6 Bc7 9.Kc3 Na7 10.Re7 Nc6 11.Rh7 Ba6 12.Rg7 Nd8 13.Rg6 Be5+ 14.Kb3 Nc6 15.Ka4 Bd3 16.Rh6 Bg7 17.Rd6 
  -/+  (-1.12)   Depth: 29/51   00:03:25  390mN

Code: Select all

New game
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 1

Analysis by Igorrit 0.086v9_x64:

1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Rf7 Kd7 
  =/+  (-0.57)   Depth: 6/13   00:00:00  2kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 
  =/+  (-0.48)   Depth: 7/15   00:00:00  6kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 
  =/+  (-0.56 ++)   Depth: 8/15   00:00:00  8kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Rf7 Bc8 5.Ka4 
  =/+  (-0.62)   Depth: 8/16   00:00:00  9kN
1...Bb5 2.Kc2 Bxa6 3.Kb3 Bb8 4.Ka4 Be5 5.Rh7 Nd5 
  =/+  (-0.63)   Depth: 9/18   00:00:00  13kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.50)   Depth: 10/21   00:00:00  34kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.c6+ Kd6 
  =/+  (-0.49)   Depth: 11/21   00:00:00  46kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.c6+ Kd6 
  =/+  (-0.57 ++)   Depth: 12/23   00:00:00  73kN
1...Bb5 2.Rg3 Kc7 3.Rg7 Kd7 4.Kc2 Bxa6 5.Kc3 Bb8 6.c6+ Kd6 
  =/+  (-0.65 ++)   Depth: 12/24   00:00:00  118kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Kb3 Nd4+ 6.Kc3 Nb5+ 7.Kc4 Nd6+ 8.Kc3 Ne4+ 9.Kd4 
  =/+  (-0.67)   Depth: 12/24   00:00:00  146kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Kb3 Nd4+ 6.Kc3 Nb5+ 7.Kb3 Bb7 8.Rg7+ Kc6 9.Rg6+ Kd5 10.Rg5+ Kd4 11.Rg4+ Be4 
  -/+  (-0.75 ++)   Depth: 13/26   00:00:00  220kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Kb3 Bb5 6.Rg7+ Ke6 7.Rb7 Ba6 8.Rc7 Nd4+ 9.Ka4 Bb8 
  -/+  (-0.74)   Depth: 13/26   00:00:00  231kN
1...Bb5 2.Rg3 Nc6 3.Rb3 Nb8 4.Rf3 Bxa6 5.Rf6 Kc7 6.Kc2 Bb7 7.Rf7+ Nd7 8.Kc3 Kc6 
  -/+  (-0.75)   Depth: 14/29   00:00:00  476kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rd6+ Kc7 8.Kc3 Bb5 9.Rh6 Ne5 10.Rh7+ Bd7 11.Kd4 
  -/+  (-0.73)   Depth: 15/29   00:00:00  605kN
1...Bb5 2.Kc2 Bxa6 3.Rh7 Bb5 4.Kc3 Bb8 5.Rh8+ Kc7 6.Rh7 Kd7 7.Kd4 Bc6 8.Kc4 Be4 9.Rh3 Bf5 10.Rh1 Nc6 11.Rd1+ Kc7 12.Rd6 Ne5+ 13.Kd5 
  -/+  (-0.73)   Depth: 16/29   00:00:00  953kN
1...Bb5 2.Kc2 Bxa6 3.Rh7 Bb5 4.Kc3 Bb8 5.Rh8+ Kc7 6.Rh7 Kd7 7.Kd4 Bc6 8.Kc4 Be4 9.Rh3 Bf5 10.Rh1 Nc6 11.Rd1+ Kc7 12.Rd6 Ne5+ 13.Kd5 
  -/+  (-0.73)   Depth: 17/31   00:00:00  1316kN
1...Bb5 2.Kc2 Bxa6 3.Rh7 Bb5 4.Rh8+ Kd7 5.Kc3 Kc7 6.Rh7 Kd8 7.Kd4 Bb8 8.Ke4 Bc6+ 9.Kd4 Kd7 10.Kc4 Be4 11.Rh3 Bf5 12.Rh1 Nc6 13.Rd1+ Kc7 14.Rd6 Ne5+ 15.Kd5 
  -/+  (-0.73)   Depth: 18/31   00:00:01  1963kN
1...Bb5 2.Kc2 Bxa6 3.Rh7 Bb5 4.Rh8+ Kd7 5.Kc3 Kc7 6.Rh7 Kd8 7.Kd4 Bb8 8.Ke4 Bc6+ 9.Kd4 Kd7 10.Kc4 Be4 11.Rh3 Bf5 12.Rh1 Nc6 13.Rd1+ Kc7 14.Rd6 Ne5+ 15.Kd5 
  -/+  (-0.73)   Depth: 19/31   00:00:01  2849kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Kc3 Bb8 9.Kd2 Bg4 10.b5 Bf4+ 11.Kd3 Bf5+ 12.Kc3 Be5+ 13.Kd2 Nb4 
  =/+  (-0.69)   Depth: 20/36   00:00:03  5475kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Kc3 Bb8 9.Kd2 Bg4 10.b5 Bf4+ 11.Kd3 Bf5+ 12.Kc3 Be5+ 13.Kd2 Nb4 
  =/+  (-0.69)   Depth: 21/36   00:00:05  8207kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Kc3 Bb8 9.Kd2 Bg4 10.b5 Bf4+ 11.Kd3 Bf5+ 12.Kc3 Be5+ 13.Kd2 Nb4 
  =/+  (-0.69)   Depth: 22/36   00:00:06  11474kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Kc3 Bb8 9.Kd2 Bg4 10.Ke3 Be5 11.b5 Na5 12.Ra7 Nc4+ 13.Ke4 Bf5+ 14.Kf3 Kd5 15.c6 Kc5 
  -/+  (-0.77 ++)   Depth: 23/36   00:00:10  18279kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bd3 9.Rg7 Bf5 10.Rg5 Nd4 11.Rg7 Bb8 12.Rb7 Bc2+ 13.Ka3 Be5 
  -/+  (-0.77)   Depth: 23/36   00:00:11  19281kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Kc3 Bb8 9.Kd2 Bc4 10.Kc3 Kd5 11.Rd7+ Ke4 
  -/+  (-0.85 ++)   Depth: 24/39   00:00:26  47605kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rd7+ Kc4 10.b5 Bf3 11.Rd6 Nd4 12.b6 Bb8 13.Rd8 Bc6+ 14.Ka3 
  -/+  (-0.92)   Depth: 24/43   00:00:32  58162kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rh7 Bd3 10.Rh5+ Kc4 11.Rh4+ Nd4 12.Ka5 Bb8 13.Kb6 Kd5 14.Rh8 Nc6 15.Rc8 Ba7+ 16.Kb7 
  -/+  (-0.81)   Depth: 25/53   00:00:49  89059kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rh7 Bf3 10.Kb5 Bb8 11.Rd7+ Ke6 12.Rh7 Bf4 13.Rh3 Nd4+ 14.Kb6 Bc6 15.Rh8 Bg5 16.Rf8 Kd5 
  -/+  (-0.88)   Depth: 26/53   00:00:59  108mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rh7 Bd3 10.Rh5+ Kc4 11.Rh4+ Nd4 12.Ka5 Kc3 13.Rg4 Nc6+ 14.Ka4 Bf5 15.Rf4 Bc2+ 16.Kb5 Nd4+ 17.Ka5 Bb8 18.Rg4 Bf5 
  -/+  (-0.89)   Depth: 27/53   00:01:20  146mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Kd5 9.Rh7 Bd3 10.Rh5+ Kc4 11.Rh4+ Nd4 12.Ka5 Kc3 13.Rg4 Nc6+ 14.Ka4 Bf5 15.Rf4 Nd4 16.Rh4 Bd7+ 17.Ka5 Kc4 
  -/+  (-0.97 ++)   Depth: 28/53   00:01:56  213mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kc7 4.Rg7+ Kc8 5.Rg8+ Kd7 6.Rg7+ Ke6 7.Kb2 Bxa6 8.Kb3 Bb5 9.Rb7 Be2 10.Ka4 Kd5 11.Rh7 Bd3 12.Rh5+ Kc4 13.Rh4+ Nd4 14.Ka5 Kc3 15.Rg4 Nc6+ 16.Ka4 Bf5 17.Rf4 Nd4 18.Rh4 Bd7+ 19.Ka5 Kc4 
  -/+  (-1.05 ++)   Depth: 28/53   00:02:28  273mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Rg7 Bd3+ 7.Kb2 Nc8 8.Ka3 Bb8 9.Rg8 Bxa6 10.Ka4 Bb5+ 11.Kb3 Kd7 12.Rg6 Be5 13.Rh6 Bc7 14.Rg6 Ne7 15.Rg7 Be5 16.Rf7 Bd3 17.Rf3 Ba6 18.Re3 Bb8 19.Ka4 Nf5 
  -/+  (-0.99)   Depth: 28/53   00:02:36  287mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Rg3 Kc6 6.Rg7 Bd3+ 7.Kb2 Nc8 8.Ka3 Bb8 9.Rg8 Bxa6 10.Ka4 Bb5+ 11.Kb3 Kd7 12.Rg6 Be5 13.Rh6 Bc7 14.Rg6 Ne7 15.Rf6 Nd5 16.Rg6 Ne3 17.Rh6 Be5 18.Rh7+ Ke6 
  -/+  (-1.05)   Depth: 29/53   00:03:33  391mN

Code: Select all

New game
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 1

Analysis by IvanHoe 9.49b x64 Analyzer:

1...Bb5 2.Kc2 Bb8 3.a7 Bxa7 4.Kc3 Bb8 
  =/+  (-0.52)   Depth: 6   00:00:00  2kN
1...Bb5 2.Kc2 Bb8 3.a7 Bxa7 4.Kc3 Bb8 
  =/+  (-0.52)   Depth: 6   00:00:00  2kN
1...Bb5 2.Kc2 Bb8 3.a7 Bxa7 4.Kc3 Bb8 
  =/+  (-0.60 ++)   Depth: 7   00:00:00  4kN
1...Bb5 2.Kc2 Bb8 3.a7 Bxa7 4.Kc3 Bb8 
  =/+  (-0.68 ++)   Depth: 7   00:00:00  4kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Rf7 Kd7 
  =/+  (-0.68)   Depth: 7   00:00:00  5kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Rf7 Kd7 
  =/+  (-0.68)   Depth: 7   00:00:00  5kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Ka4 Be5 5.Rf7 Nd5 
  -/+  (-0.73)   Depth: 8   00:00:00  7kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Ka4 Be5 5.Rf7 Nd5 
  -/+  (-0.73)   Depth: 8   00:00:00  8kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Ka4 Be5 5.Rf7 Nd5 
  =/+  (-0.65 --)   Depth: 9   00:00:00  14kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Ka4 Be5 5.Rf7 Nd5 
  =/+  (-0.57 --)   Depth: 9   00:00:00  20kN
1...Bb5 2.Kc2 Bb8 3.Kb3 Bxa6 4.Ka4 Be5 5.Rf7 Nd5 
  =/+  (-0.45 --)   Depth: 9   00:00:00  23kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 
  =/+  (-0.62)   Depth: 9   00:00:00  25kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 
  =/+  (-0.62)   Depth: 9   00:00:00  25kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ne7 5.Kc2 Bxa6 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.70 ++)   Depth: 10   00:00:00  31kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.61)   Depth: 10   00:00:00  34kN
1...Bb8 
  -/+  (-0.78 ++)   Depth: 10   00:00:00  71kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.c6+ Bxc6 6.Kc2 Bb5 7.Rf8 Ba7 
  =/+  (-0.63)   Depth: 10   00:00:00  73kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.c6+ Bxc6 6.Kc2 Bb5 7.Rf8 Ba7 
  =/+  (-0.63)   Depth: 10   00:00:00  75kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.c6+ Bxc6 6.Kc2 Bb5 7.Rf8 Ba7 
  -/+  (-0.71 ++)   Depth: 11   00:00:00  75kN
1...Bb8 2.Rf7 Bb5 3.Rf8+ Kc7 4.Rf7 Kd7 5.c6+ Bxc6 6.Kc2 Bb5 7.Rf8 Ba7 
  -/+  (-0.79 ++)   Depth: 11   00:00:00  83kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.61)   Depth: 11   00:00:00  105kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.61)   Depth: 11   00:00:00  107kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 
  =/+  (-0.69 ++)   Depth: 12   00:00:00  114kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 
  -/+  (-0.77 ++)   Depth: 12   00:00:00  118kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kc3 Bb8 7.Kd4 Bb5 8.Rf7 Bc6 
  -/+  (-0.89 ++)   Depth: 12   00:00:00  135kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kb3 Bb8 7.Rf7 Bb7 8.Ka4 
  -/+  (-0.91)   Depth: 12   00:00:00  156kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Rg7+ Ne7 6.Kb3 Bb8 7.Rf7 Bb7 8.Ka4 
  -/+  (-0.91)   Depth: 12   00:00:00  159kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Kb3 Bb5 6.Rg7+ Ne7 7.Rf7 Ke6 8.Rf2 Kd5 9.Rd2+ Kc6 10.Rd6+ Kc7 
  -/+  (-0.83 --)   Depth: 13   00:00:00  201kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Kb2 Bxa6 5.Kb3 Bb5 6.Rg7+ Ne7 7.Rf7 Ke6 8.Rf2 Kd5 9.Rd2+ Kc6 10.Rd6+ Kc7 
  -/+  (-0.75 --)   Depth: 13   00:00:00  209kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bb8 6.Kb3 Bxa6 7.Ka4 Bd3 8.b5 Bc2+ 9.Ka3 Be5 
  =/+  (-0.69)   Depth: 13   00:00:00  223kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bb8 6.Kb3 Bxa6 7.Ka4 Bd3 8.b5 Bc2+ 9.Ka3 Be5 
  =/+  (-0.69)   Depth: 13   00:00:00  230kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb8 7.Ka4 Bd3 8.b5 Bc2+ 9.Ka3 Be5 10.Rb7 
  -/+  (-0.74)   Depth: 14   00:00:00  268kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb8 7.Ka4 Bd3 8.b5 Bc2+ 9.Ka3 Be5 10.Rb7 
  -/+  (-0.74)   Depth: 14   00:00:00  282kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb8 7.Ka4 Bd3 8.b5 Bc2+ 9.Ka3 Be5 10.Rb7 
  =/+  (-0.66 --)   Depth: 15   00:00:00  377kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bd5+ 11.Ka4 
  =/+  (-0.70)   Depth: 15   00:00:00  428kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bd5+ 11.Ka4 
  =/+  (-0.70)   Depth: 15   00:00:00  428kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bh7 11.Rc8 
  =/+  (-0.70)   Depth: 16   00:00:00  542kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bh7 11.Rc8 
  =/+  (-0.70)   Depth: 16   00:00:00  601kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Be4 8.b5 Bb8 9.Rg8 Be5+ 10.Kb3 Bh7 11.Rc8 
  =/+  (-0.62 --)   Depth: 17   00:00:00  912kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Bb5 8.Rb7 Ba6 9.Rc7 Kd5 10.Rd7+ Ke4 11.Rd6 
  =/+  (-0.64)   Depth: 17   00:00:00  1043kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Bb5 8.Rb7 Ba6 9.Rc7 Kd5 10.Rd7+ Ke4 11.Rd6 
  =/+  (-0.64)   Depth: 17   00:00:00  1044kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bd3 7.Kc3 Bb5 8.Rb7 Ba6 9.Rc7 Kd5 10.Rd7+ Ke4 11.Rd6 Bb5 12.Re6+ Ne5 
  -/+  (-0.72 ++)   Depth: 18   00:00:00  1320kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rg7 Kd4 10.Rg4+ Be4 11.Kb5 Ne5 12.Rf4 Kd5 
  -/+  (-0.78)   Depth: 18   00:00:00  1550kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rg7 Kd4 10.Rg4+ Be4 11.Kb5 Ne5 12.Rf4 Kd5 
  -/+  (-0.78)   Depth: 18   00:00:00  1645kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rg7 Kd4 10.Rg4+ Be4 11.Kb5 Ne5 12.Rf4 Kd5 
  =/+  (-0.70 --)   Depth: 19   00:00:01  2248kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rg7 Kd4 10.Rg4+ Be4 11.Kb5 Ne5 12.Rf4 Kd5 
  =/+  (-0.62 --)   Depth: 19   00:00:01  2893kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Rg7 Bc2+ 10.Kb5 Bb8 11.Rb7 Nc6 12.Rd7+ Ke6 13.Rb7 Be4 
  -/+  (-0.72)   Depth: 19   00:00:01  3272kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Rg7 Bc2+ 10.Kb5 Bb8 11.Rb7 Nc6 12.Rd7+ Ke6 13.Rb7 Be4 
  -/+  (-0.72)   Depth: 19   00:00:01  3272kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Rg7 Bc2+ 10.Kb5 Bb8 11.Rb7 Nc6 12.Rd7+ Ke6 13.Rb7 Be4 
  -/+  (-0.80 ++)   Depth: 20   00:00:01  4123kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Rg7 Bc2+ 10.Kb5 Bb8 11.Rb7 Nc6 12.Rd7+ Ke6 13.Rb7 Be4 
  -/+  (-0.88 ++)   Depth: 20   00:00:02  5301kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Rg8 Nc6+ 11.Ka4 Bh7 12.Rg7 Be4 13.Kb5 Bb8 
  -/+  (-0.84)   Depth: 20   00:00:02  5448kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Rg8 Nc6+ 11.Ka4 Bh7 12.Rg7 Be4 13.Kb5 Bb8 
  -/+  (-0.84)   Depth: 20   00:00:02  5843kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Rg8 Nc6+ 11.Ka4 Bh7 12.Rg4+ Be4 13.Kb5 Ne5 14.Rf4 Kd5 
  -/+  (-0.92 ++)   Depth: 21   00:00:03  7694kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Rh5 Be4 11.Ka6 Bb8 12.Kb5 Bc7 13.Rh6 Bd3+ 14.Ka4 Kd5 
  -/+  (-0.89)   Depth: 21   00:00:03  8002kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Rh5 Be4 11.Ka6 Bb8 12.Kb5 Bc7 13.Rh6 Bd3+ 14.Ka4 Kd5 
  -/+  (-0.89)   Depth: 21   00:00:04  8537kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Ka4 Be4 11.Kb5 Bb8 12.Rh5 Bc7 13.Rh6 Bd3+ 14.Ka4 Ng4 
  -/+  (-0.81 --)   Depth: 22   00:00:05  11031kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rg5+ Ne5 8.Ka4 Bd3 9.Ka5 Kd4 10.Ka4 Be4 11.Kb5 Bb8 12.Rh5 Bc7 13.Rh6 Bd3+ 14.Ka4 Ng4 
  -/+  (-0.73 --)   Depth: 22   00:00:06  13083kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Ne7 8.Rh7 Bd3 9.Rh3 Bg6 10.Ra3 Bb8 11.b5 Nd5 12.Kb3 Bd3 13.Ka4 Be4 14.Ka5 Kc7 15.c6 
  -/+  (-0.94)   Depth: 22   00:00:07  16305kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Ne7 8.Rh7 Bd3 9.Rh3 Bg6 10.Ra3 Bb8 11.b5 Nd5 12.Kb3 Bd3 13.Ka4 Be4 14.Ka5 Kc7 15.c6 
  -/+  (-0.94)   Depth: 22   00:00:07  16305kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Rg6+ Kd7 7.Rg7+ Ne7 8.Rh7 Bd3 9.Rh8 Bf5 10.Kb3 Kc6 11.Re8 Nd5 12.Ra8 Kb7 13.Rd8 Be6 14.Rd6 Nf4+ 15.Kc3 Kc7 
  -/+  (-0.86 --)   Depth: 23   00:00:08  18558kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb5 Be4 15.Rf6 Bd3+ 16.Ka4 Bf5 17.Rd6 Bd7+ 18.Kb3 Nf5 
  -/+  (-0.85)   Depth: 23   00:00:09  20842kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb5 Be4 15.Rf6 Bd3+ 16.Ka4 Bf5 17.Rd6 Bd7+ 18.Kb3 Nf5 
  -/+  (-0.85)   Depth: 23   00:00:10  21822kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb3 Be4 15.Kc4 Nf5 
  -/+  (-0.83)   Depth: 24   00:00:12  26627kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb3 Be4 15.Kc4 Nf5 
  -/+  (-0.83)   Depth: 24   00:00:13  29699kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb3 Be4 15.Kc4 Nf5 
  -/+  (-0.91 ++)   Depth: 25   00:00:18  38536kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Ka4 Bg4 9.Rg7 Bf5 10.Rg5 Ne7 11.Rg1 Kd5 12.Rd1+ Kc6 13.Rd6+ Kc7 14.Kb5 Be4 15.Rf6 Bd3+ 16.Ka4 Bc4 17.Rh6 Bd5 18.Rh7 
  -/+  (-0.75 --)   Depth: 25   00:00:24  51856kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rh6 Kd5 12.Rh5+ Kc6 13.Rh6+ Kc7 14.Rd6 Nc6+ 15.Ka4 Bf5 16.Rd5 Ne7 17.Rd6 Bd7+ 18.Kb3 Nf5 
  -/+  (-0.87)   Depth: 25   00:00:25  53539kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rh6 Kd5 12.Rh5+ Kc6 13.Rh6+ Kc7 14.Rd6 Nc6+ 15.Ka4 Bf5 16.Rd5 Ne7 17.Rd6 Bd7+ 18.Kb3 Nf5 
  -/+  (-0.87)   Depth: 25   00:00:25  53539kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rh6 Kd5 12.Rh5+ Kc6 13.Rh6+ Kc7 14.Rd6 Nc6+ 15.Ka4 Bf5 16.Rd5 Ne7 17.Rd6 Bd7+ 18.Kb3 Nf5 
  -/+  (-0.79 --)   Depth: 26   00:00:33  70531kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rh7 Kd3 9.Rh3+ Kd4 10.Rh4+ Kd5 11.Rh5+ Ne5 12.Rh8 Nd7 13.Rh5+ Kc6 14.Ka4 Bc4 15.Rh6+ Kc7 16.Rh7 Bd3 17.Re7 Bb8 18.Re3 Bc4 19.Re4 Bd5 20.Re7 Bc6+ 21.b5 
  -/+  (-0.80)   Depth: 26   00:00:37  78976kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rh7 Kd3 9.Rh3+ Kd4 10.Rh4+ Kd5 11.Rh5+ Ne5 12.Rh8 Nd7 13.Rh5+ Kc6 14.Ka4 Bc4 15.Rh6+ Kc7 16.Rh7 Bd3 17.Re7 Bb8 18.Re3 Bc4 19.Re4 Bd5 20.Re7 Bc6+ 21.b5 
  -/+  (-0.80)   Depth: 26   00:00:37  78978kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rh7 Kd3 9.Rh3+ Kd4 10.Rh4+ Kd5 11.Rh5+ Ne5 12.Rh8 Nd7 13.Rh5+ Kc6 14.Ka4 Bc4 15.Rh6+ Kc7 16.Rh7 Bd3 17.Re7 Bb8 18.Re3 Bc4 19.Re4 Bd5 20.Re7 Bc6+ 21.b5 
  -/+  (-0.80)   Depth: 27   00:00:47  99262kN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rh7 Kd3 9.Rh3+ Kd4 10.Rh4+ Kd5 11.Rh5+ Ne5 12.Rh8 Nd7 13.Rh5+ Kc6 14.Ka4 Bc4 15.Rh6+ Kc7 16.Rh7 Bd3 17.Re7 Bb8 18.Re3 Bc4 19.Re4 Bd5 20.Re7 Bc6+ 21.b5 
  -/+  (-0.80)   Depth: 27   00:00:58  115mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Rh7 Kd3 9.Rh3+ Kd4 10.Rh4+ Kd5 11.Rh5+ Ne5 12.Rh8 Nd7 13.Rh5+ Kc6 14.Ka4 Bd3 15.Rh6+ Kc7 16.Rh5 Be4 17.Rg5 Bc2+ 18.Ka5 Bd3 19.Rh5 Be4 20.Ka6 Bb8 21.b5 Nf6 22.b6+ Kc6 23.Rh6 Bd3+ 24.Ka5 
  -/+  (-0.88 ++)   Depth: 28   00:01:17  154mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rd7 Nc6+ 12.Ka4 Bf5 13.Rf7 Ke6 14.Rf8 Bd3 15.Rh8 Be4 16.Kb5 Bb8 17.Kb6 Kd5 18.b5 Be5 
  -/+  (-0.77)   Depth: 28   00:01:25  170mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rd7 Nc6+ 12.Ka4 Bf5 13.Rf7 Ke6 14.Rf8 Bd3 15.Rh8 Be4 16.Kb5 Bb8 17.Kb6 Kd5 18.b5 Be5 
  -/+  (-0.77)   Depth: 28   00:01:47  213mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rd7 Nc6+ 12.Ka4 Bf5 13.Rf7 Ke6 14.Rf8 Bd3 15.Rh8 Be4 16.Kb5 Bb8 17.Kb6 Kd5 18.b5 Be5 
  -/+  (-0.85 ++)   Depth: 29   00:02:09  257mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rd7 Nc6+ 12.Ka4 Bf5 13.Rf7 Ke6 14.Rf8 Bd3 15.Rh8 Be4 16.Kb5 Bb8 17.Kb6 Kd5 18.b5 Be5 
  -/+  (-0.93 ++)   Depth: 29   00:02:39  314mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Kd5 7.Rd7+ Ke4 8.Ka4 Bd3 9.Rd6 Nd4 10.Ka5 Ke5 11.Rd7 Nc6+ 12.Ka4 Bf5 13.Rf7 Ke6 14.Rf8 Bd3 15.Rh8 Be4 16.Kb5 Bb8 17.Kb6 Kd5 18.b5 Be5 
  -/+  (-1.05 ++)   Depth: 29   00:03:08  370mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bb8 10.Rb7 Bd1+ 11.Ka5 Bf3 12.Rh7 Bc6 13.Rh6+ Kd5 14.Kb6 Be5 15.Rg6 Bd7 16.Rg8 Nb5 17.Rg6 Bc7+ 18.Kb7 Be8 19.Rh6 Be5 
  -/+  (-1.05)   Depth: 29   00:03:14  383mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bb8 10.Rb7 Bd1+ 11.Ka5 Bf3 12.Rh7 Bc6 13.Rh6+ Kd5 14.Kb6 Be5 15.Rg6 Bd7 16.Rg8 Nb5 17.Rg6 Bc7+ 18.Kb7 Be8 19.Rh6 Be5 
  -/+  (-1.05)   Depth: 29   00:03:28  410mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bb8 10.Rb7 Bd1+ 11.Ka5 Bf3 12.Rh7 Nc6+ 13.Kb5 Bf4 14.Rg7 Be5 15.Rh7 Nd4+ 16.Kb6 Bc6 17.Rh6+ Kd5 18.Rg6 Bd7 19.Rg8 Nb5 20.Rg6 Bc7+ 21.Kb7 Be8 22.Rh6 Be5 
  -/+  (-1.05)   Depth: 30   00:04:15  502mN
1...Bb5 2.Rg3 Nc6 3.Rg8+ Kd7 4.Rg7+ Ke6 5.Kb2 Bxa6 6.Kb3 Bb5 7.Rb7 Be2 8.Rc7 Nd4+ 9.Ka4 Bb8 10.Rb7 Bd1+ 11.Ka5 Bf3 12.Rh7 Nc6+ 13.Kb5 Bf4 14.Rg7 Be5 15.Rh7 Nd4+ 16.Kb6 Bc6 17.Rh6+ Kd5 18.Rg6 Bd7 19.Rg8 Nb5 20.Rg6 Bc7+ 21.Kb7 Be8 22.Rh6 Be5 
  -/+  (-1.05)   Depth: 30   00:04:41  553mN


Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 5:04 am
by BB+
Perhaps I should have copied this most closely:
Again, Rybka and its derivatives think this position (and particularly the few moves leading to it) is completely drawn, even after in infinite analysis for awhile (especially the few moves before). I don't really see this as a blind bishop endgame, but more a situation where Rybka has been given completely incorrect knowledge and that the derivatives have also taken (and perhaps Naum, too, if Alex looked at the code and saw what he thought was a "good idea" to incorporate into his program).
[White "IDeA with Rybka 4, 4 cores"]
[Black "Zappa Mexico II, 1-cpu, 32-bit"]
[Result "*"]
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. d5 Ne5 7. f4 Ng6 8. e5 Ng8 9. d6 cxd6 10. exd6 Qf6 11. Qe2+ Qe6 12. Nb5
Qxe2+ 13. Bxe2 Rb8 14. Be3 b6 15. h4 h5 16. O-O-O Nh6 17. Rhe1 Kd8 18. g3 a6
19. Nc3 Nf5 20. Nd5 Rh6 21. Bxb6+ Rxb6 22. Nxb6 Bb7 23. Rd3 Bxd6 24. Nc4 Bc7
25. Kb1 d5 26. Ne3 Nxg3 27. Nxd5 Bd6 28. Rxg3 Bxd5 29. Rd1 Nxf4 30. Bxa6 Ke7
31. a4 Rg6 32. Rxg6 fxg6 33. a5 g5 34. hxg5 h4 35. Bf1 Bc5 36. a6 Bc6 37. b4
Bb6 38. g6 h3 39. Bxh3 Nxh3 40. Re1+ Kd8 41. c4 Nf4 42. c5 Ba7 43. Rf1 Nxg6 44.
Rf7 Ne7 45. Rxg7 *So starting at move 40, I stepped through the next moves in question, and IvanHoe/RobboLito/Houdini were all giving Black a slight plus at each (for some, I didn't run the analysis for more than a few seconds -- Rybka was always giving White a plus, or 0.00 at such depths). Perhaps posters at the Rybka forum mean something different by the "derivatives"? :lol: :roll:

As an example:
RobboLito VERSION 0.084
compiled with PREFETCH
position fen 3k4/6p1/Pbb3P1/2P5/1P3n2/8/8/1K2R3 b - - 0 42
go movetime 60000
[...]
info time 60001 nodes 143409911 nps 2390000 score cp 69 depth 24 seldepth 48 pv b6a7 e1d1 d8e7 b1b2 f4e6 b2b3 c6b5 d1d2 e7f6 d2d6 f6e5 d6d2 e5f5 d2d1 e6c7 d1e1 c7a6 e1e7 a7c5 b4c5 a6c5 b3b4
bestmove b6a7
id name Rybka 3 1-cpu 
position fen 3k4/6p1/Pbb3P1/2P5/1P3n2/8/8/1K2R3 b - - 0 42
go movetime 60000
[...]
info depth 19 score cp 0 time 56735 nodes 5023600 nps 90670 pv b6c7 b1c2 c7b8 e1f1 b8e5 a6a7 c6e4 c2d2 e4a8 b4b5 d8c7 d2e3 f4d5 e3d3 d5f4 d3e3 f4d5 e3d3 d5f4 d3e3 f4d5 e3d3 d5f4 d3e3 f4d5 e3d3 d5f4 d3e3 f4d5 e3d3 d5f4
info currmove b6a7 currmovenumber 2
info depth 19 time 60004 nodes 5298468 nps 90421 
bestmove b6c7 ponder b1c2
So either there is some misunderstanding, or the poster is just plain wrong.
I don't think further explanation is needed...
Yes but, it's so fun to be "right" and point out the errors... ;)

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 11:41 am
by Jeremy Bernstein
From Louis Zulli on Talkchess:
3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45

Apparently certain engines fail to select Bb5 here, even after significant searches. See this thread for more.

Additional results would be interesting.

Here's what Stockfish-2.0.1 (8 threads) says:

Code: Select all

info depth 44 seldepth 35 multipv 1 score cp 484 time 631235 nodes 5293349919 nps 8385704 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3h3 b8a6 h3h8 d8c7 h8h7 c7b8 h7h4 b8c8 h4h8 c8b7 h8h7 b7a8 h7h4 a6b8 b1b2 b8c6 b2b3 a7b8 b3a3 a8b7 h4g4 b8e5 g4g5 b7c7 a3b3 e5d4 g5g6 c7d7 g6h6 d7c8
I am running results for HIARCS 13.2, Ippo, Robbo, Houdini, Rybka 3, Naum 4.1 and Naum 4.2. Will post shortly.

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 1:16 pm
by Jeremy Bernstein
Tiens...

3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45

[Hiarcs13.2SP.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info depth 15 seldepth 26 time 547 nodes 531131 nps 942356 score cp 204 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c8c7 g8g7 c7b8 b2c3 a6b5 
info depth 15 seldepth 26 time 578 nodes 557224 nps 942356 score cp 199 pv c6b5 g7g3 e7c6 g3g8 d8e7 g8g7 
info depth 16 seldepth 31 time 922 nodes 885017 nps 941315 score cp 200 pv c6b5 g7g3 e7c6 g3g8 d8e7 g8g7 e7f8 g7c7 f8e8 b1b2 e8d8 c7g7 b5a6 b2b3 a6d3 b3a4 d8c8 g7f7 d3c4 f7g7 
info depth 17 seldepth 33 time 1672 nodes 1586398 nps 949710 score cp 194 pv c6b5 g7g3 e7c6 g3g8 d8e7 g8g7 e7e6 b1b2 b5a6 b2b3 a6d3 g7b7 e6e5 b3a4 e5d5 b7g7 d5c4 g7g4 c6d4 g4g7 a7b8 
info depth 18 seldepth 33 time 3156 nodes 3005096 nps 948401 score cp 187 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 
info depth 19 seldepth 33 time 5172 nodes 4858408 nps 939416 score cp 187 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3a4 e6d5 b7g7 
info depth 20 seldepth 43 time 8766 nodes 8222019 nps 937636 score cp 182 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 d7c6 g3g7 b5d3 b1b2 
info depth 21 seldepth 43 time 14437 nodes 13634227 nps 942109 score cp 207 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 a3b3 d7c7 
info depth 22 seldepth 43 time 20469 nodes 19575886 nps 955080 score cp 207 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 a3b3 d7c7 b2c3 c6b8 b3b2 b8a6 b2g2 a6b8 
info depth 23 seldepth 43 time 32781 nodes 31535858 nps 961989 score cp 221 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 a3b3 d7c7 b2a3 c6b8 b3e3 b8a6 e3e7 c7b8 e7h7 a6c7 a3b3 b8b7 h7e7 b7c6 
info depth 24 seldepth 43 time 50844 nodes 48069279 nps 945408 score cp 221 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 a3b3 d7c7 b2a3 c6b8 b3f3 b8a6 a3b3 a7b8 f3f7 c7c8 
info depth 25 seldepth 43 time 79969 nodes 74917506 nps 936725 score cp 221 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 b2b3 c6b8 a3a5 d7c6 a5a2 b8a6 a2g2 a6c7 g2g6 c6b7 g6g7 b7c8 g7g8 c8d7 g8h8 d7c6 h8h6 c6b7 h6h7 b7c8 
info depth 26 seldepth 43 time 131469 nodes 122650555 nps 932801 score cp 221 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 b2b3 c6b8 a3a5 d7c6 a5a2 b8a6 a2g2 a6c7 g2g7 a7b8 g7g8 c6b7 g8g7 
info depth 27 seldepth 43 time 235969 nodes 224815647 nps 952801 score cp 231 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 a7b8 g3a3 e7c6 b1b2 b8a7 b2b3 c6b8 a3a5 d7c6 a5a2 b8a6 a2h2 a6c7 h2h6 c6b7 h6h7 a7b8 b3c3 
bestmove c6b5  ponder g7g3
[Houdini x86 1CPU.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info depth 1 seldepth 5 score cp -100  time 0 nodes 29 nps 0 pv a7c5 b4c5
info depth 1 seldepth 5 score cp -50  time 0 nodes 33 nps 0 pv d8e8 b1b2
info depth 1 seldepth 5 score cp -3  time 0 nodes 39 nps 0 pv d8d7 b1b2
info depth 1 seldepth 6 score cp 1  time 0 nodes 69 nps 0 pv a7b8
info depth 2 seldepth 11 score cp -17  time 0 nodes 239 nps 0 pv a7b8 b1c2 e7f5
info depth 2 seldepth 11 score cp -5  time 0 nodes 304 nps 0 pv d8d7 b1c2
info depth 2 seldepth 11 score cp 19  time 0 nodes 460 nps 0 pv c6b5 b1c2 b5a6 c2c3
info depth 3 seldepth 11 score cp 19  time 0 nodes 531 nps 0 pv c6b5 b1c2 b5a6 c2c3
info depth 4 seldepth 11 score cp 22  time 0 nodes 1015 nps 0 pv c6b5 b1c2 a7b8 a6a7 b8a7 c2c3
info depth 5 seldepth 11 score cp 22  time 0 nodes 1458 nps 0 pv c6b5 b1c2 a7b8 a6a7 b8a7 c2c3
info depth 6 seldepth 13 score cp 30  time 0 nodes 2652 nps 0 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 e7f5
info depth 7 seldepth 15 score cp 35 lowerbound time 0 nodes 6981 nps 0 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 e7f5
info depth 7 seldepth 15 score cp 35  time 0 nodes 7345 nps 0 pv c6b5 b1c2 b5a6 c2b3 a7b8 g7f7 d8d7
info depth 8 seldepth 18 score cp 25  time 0 nodes 14999 nps 0 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6 c2c3
info depth 8 seldepth 18 score cp 28  time 0 nodes 16467 nps 0 pv a7b8 b1c2 c6a4 c2d3 a4b5 d3e4 b5a6 g7f7 d8d7
info depth 9 seldepth 19 score cp 31  time 16 nodes 26748 nps 1671000 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8 c3d4 a6b5
info depth 10 seldepth 19 score cp 31  time 17 nodes 33974 nps 1998000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6 c2c3 a7b8 c3d4 a6b5
info depth 10 seldepth 19 score cp 36 lowerbound time 17 nodes 45859 nps 2697000 pv a7b8 b1c2 c6a4 c2d3 a4b5 d3e4 b5a6 g7f7 d8d7
info depth 10 seldepth 20 score cp 42  time 21 nodes 62271 nps 2965000 pv a7b8 b1c2 c6a4 c2d3 a4b5 d3e4 b5a6 g7h7 a6b5 h7f7 e7c6 f7b7
info depth 11 seldepth 23 score cp 42  time 53 nodes 96656 nps 1823000 pv a7b8 b1c2 c6a4 c2d3 a4b5 d3e4 b5a6 g7h7 a6b5 h7h8 d8c7 h8h7 b5c6 e4d4
info depth 12 seldepth 30 score cp 42  time 133 nodes 210970 nps 1586000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 b2c2 a7b8 c2b3
info depth 13 seldepth 30 score cp 41  time 182 nodes 277025 nps 1522000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 b2b3 a7b8 b3a4
info depth 14 seldepth 30 score cp 43  time 268 nodes 414107 nps 1545000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 b2c3 a7b8 c3d4 d7d8 g7f7 e7c6 d4c3 b8e5 c3b3
info depth 15 seldepth 30 score cp 40  time 412 nodes 645058 nps 1565000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c6d8 b2b3 a7b8 g8g7 b8e5 g7h7 d8c6
info depth 16 seldepth 30 score cp 43  time 675 nodes 1092571 nps 1618000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 a6b5 c7b7
info depth 17 seldepth 30 score cp 43  time 923 nodes 1498900 nps 1623000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 a6b5 c7b7
info depth 18 seldepth 34 score cp 43  time 1303 nodes 2175711 nps 1669000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 a6b5 c7b7
info depth 19 seldepth 39 score cp 48 lowerbound time 3223 nodes 5532440 nps 1716000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 e6d5 c7d7 d5e4 d7d6
info depth 19 seldepth 39 score cp 50  time 3831 nodes 6607205 nps 1724000 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 g7h7 a6b5 c2c3 a7b8 c3d4 b5c6 d4c4 c6e4 h7h5 e4g6 h5h1 g6f7 c4b5 e7c6 h1h7
info depth 20 seldepth 39 score cp 48  time 5250 nodes 9019095 nps 1717000 pv c6b5 g7g3 d8c7 b1b2 b5a6 g3a3 c7b7 a3h3 e7d5 h3h7 d5c7 h7h6 a6e2 b2c2 c7b5 c2d2 e2c4 d2e3 a7b8 h6b6 b7c7 e3e4 b8a7 b6f6 b5c3 e4e5
info depth 21 seldepth 39 score cp 53  time 7502 nodes 13022918 nps 1735000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6d3 g6h6 d3f5 h6f6 c8e7 f6b6 b7c7 b3c4 e7c6 c4d5
info depth 22 seldepth 39 score cp 54  time 10648 nodes 18567027 nps 1743000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6e6 b8f4 e6e4 f4g5 e4e5 g5f6 e5f5 f6d8 f5d5 b7c7
info depth 23 seldepth 39 score cp 55  time 15999 nodes 27965174 nps 1747000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6e6 b8f4 e6e4 f4g5 e4e5 g5f6 e5f5 f6d8 f5d5 b7c7
info depth 24 seldepth 40 score cp 61  time 26230 nodes 45825240 nps 1747000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6e6 b8c7 e6e1 c8a7 e1e7 a7c6 e7h7 c6e5 b3c3 b7c6 h7h6 c6d5
info depth 25 seldepth 40 score cp 61  time 36239 nodes 63519731 nps 1752000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6e6 b8c7 b3c3 c7f4 c3b3 b7c7 e6e1 f4h6 e1h1 h6e3 h1h3 e3d4 h3h7 c7c6 h7h6 c6d5
info depth 26 seldepth 40 score cp 61  time 51230 nodes 89827882 nps 1753000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6g7 b7c6 g7g8 c6d7 g8g6 b8e5 g6h6 d7c7 h6h5 e5d4 h5h7 c7c6 h7h6 c6d5
info depth 27 seldepth 40 score cp 61  time 73691 nodes 129612582 nps 1758000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6g7 b7c6 g7g8 c6d7 g8g6 b8e5 g6h6 d7c7 h6h5 e5d4 h5h7 c7c6 h7h6 c6d5
info depth 28 seldepth 58 score cp 68 lowerbound time 178168 nodes 315121324 nps 1768000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6g7 b7c6 g7g8 c6d7 g8g6 b8e5 g6h6 e5d4 h6g6 d7c7 g6e6 b5d7 e6a6
info depth 28 seldepth 58 score cp 82 lowerbound time 271358 nodes 482141771 nps 1776000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c8 g3g6 a7b8 c2b3 a6b5 g6g7 b7c6 g7g6 c6d5 g6g8 b5d7 g8g7 d7f5 g7g8 d5c6 g8f8 f5e6 b3a4 e6d7 f8f6 c6d5 a4a5 b8e5 f6f7 e5c7 a5a6
info depth 28 seldepth 60 score cp 82  time 299997 nodes 531786594 nps 1772000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3g3 e7c6 g3g7 b7c8 c2b3 a6b5 g7h7 a7b8 h7g7 b8a7
bestmove c6b5 ponder g7g3
[IPPOLIT_w32.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info time 0 nodes 29 nps 0 score cp -146 depth 1 seldepth 5 pv a7c5 b4c5
info time 0 nodes 33 nps 0 score cp -90 depth 1 seldepth 5 pv d8e8 b1b2
info time 0 nodes 39 nps 0 score cp -16 depth 1 seldepth 5 pv d8d7 b1b2
info time 0 nodes 124 nps 0 score cp -16 depth 1 seldepth 9 pv d8d7 b1b2
info time 0 nodes 172 nps 0 score cp -20 depth 2 seldepth 9 pv d8d7 b1c2
info time 0 nodes 314 nps 0 score cp 26 depth 2 seldepth 9 pv c6b5 b1c2 b5a6 c2c3
info time 0 nodes 327 nps 0 score cp 26 depth 2 seldepth 9 pv c6b5 b1c2 b5a6 c2c3
info time 0 nodes 386 nps 0 score cp 26 depth 3 seldepth 9 pv c6b5 b1c2 b5a6 c2c3
info time 0 nodes 457 nps 0 score cp 26 depth 3 seldepth 9 pv c6b5 b1c2 b5a6 c2c3
info time 0 nodes 593 nps 0 score cp 30 depth 4 seldepth 9 pv c6b5 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 654 nps 0 score cp 30 depth 4 seldepth 9 pv c6b5 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 1206 nps 0 score cp 33 depth 5 seldepth 11 pv c6b5 b1c2 a7b8 c2b3 b5a6
info time 0 nodes 1277 nps 0 score cp 33 depth 5 seldepth 11 pv c6b5 b1c2 a7b8 c2b3 b5a6
info time 0 nodes 2463 nps 0 score cp 46 depth 6 seldepth 13 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5
info time 0 nodes 2545 nps 0 score cp 46 depth 6 seldepth 13 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5
info time 0 nodes 5140 nps 0 score cp 38 depth 7 seldepth 15 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6
info time 0 nodes 5172 nps 0 score cp 38 depth 7 seldepth 15 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6
info time 0 nodes 6688 nps 0 score cp 40 depth 8 seldepth 15 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 7550 nps 0 score cp 40 depth 8 seldepth 16 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 11928 nps 0 score cp 40 depth 9 seldepth 17 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 13226 nps 0 score cp 40 depth 9 seldepth 17 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8
info time 0 nodes 19662 nps 0 score cp 39 depth 10 seldepth 17 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8 c5c6 d7d6
info time 0 nodes 20921 nps 0 score cp 39 depth 10 seldepth 17 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8 c5c6 d7d6
info time 32 nodes 33330 nps 1041000 score cp 37 depth 11 seldepth 19 pv c6b5 g7g3 d8c7 g3g7 c7d7 b1c2 b5a6 c2c3 a7b8 c3d4 a6b5
info time 78 nodes 100709 nps 1291000 score cp 38 depth 11 seldepth 24 pv a7b8 g7f7 c6b5 f7f8 d8c7 f8f7 c7d7 f7f8 b5d3 b1a2 d7c7 f8f6 e7d5 f6f7 c7c6 f7b7
info time 78 nodes 101704 nps 1303000 score cp 38 depth 11 seldepth 24 pv a7b8 g7f7 c6b5 f7f8 d8c7 f8f7 c7d7 f7f8 b5d3 b1a2 d7c7 f8f6 e7d5 f6f7 c7c6 f7b7
info time 110 nodes 127612 nps 1160000 score cp 35 depth 12 seldepth 25 pv a7b8 g7f7 c6b5 f7f8 d8c7 f8f7 c7d7 f7f8 b8a7 f8f6 e7c6 f6f7 d7e8 f7g7 b5a6 b1b2 a7b8
info time 125 nodes 154828 nps 1238000 score cp 37 depth 12 seldepth 25 pv c6b5 g7g3 d8c7 g3g7 b5d3 b1b2 c7d7 g7g3 d3c4 g3g7 c4a6 b2c3 a7b8 c3d4 a6b5
info time 141 nodes 164464 nps 1166000 score cp 37 depth 12 seldepth 25 pv c6b5 g7g3 d8c7 g3g7 b5d3 b1b2 c7d7 g7g3 d3c4 g3g7 c4a6 b2c3 a7b8 c3d4 a6b5
info time 172 nodes 198934 nps 1156000 score cp 37 depth 13 seldepth 25 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 g3g7 b5d3 b1b2 c6d7 g7g3 d3c4 g3g7 c4a6 b2c3 a7b8 c3d4 a6b5
info time 188 nodes 212210 nps 1128000 score cp 37 depth 13 seldepth 25 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c6 g3g7 b5d3 b1b2 c6d7 g7g3 d3c4 g3g7 c4a6 b2c3 a7b8 c3d4 a6b5
info time 313 nodes 385067 nps 1230000 score cp 44 depth 14 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c6d8 b2c3 a7b8 c3d4 c8c7
info time 313 nodes 394690 nps 1260000 score cp 44 depth 14 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c6d8 b2c3 a7b8 c3d4 c8c7
info time 469 nodes 591595 nps 1261000 score cp 56 depth 15 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 b4b5 b8e5 c3d2
info time 485 nodes 605238 nps 1247000 score cp 56 depth 15 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 b4b5 b8e5 c3d2
info time 610 nodes 785343 nps 1287000 score cp 60 depth 16 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7d6 c6d4 a4a5 a7b8
info time 625 nodes 812685 nps 1300000 score cp 60 depth 16 seldepth 31 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7d6 c6d4 a4a5 a7b8
info time 1407 nodes 1977086 nps 1405000 score cp 60 depth 17 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 d3f5 g4h4
info time 1407 nodes 1977117 nps 1405000 score cp 60 depth 17 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 d3f5 g4h4
info time 1766 nodes 2531351 nps 1433000 score cp 60 depth 18 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 1844 nodes 2628653 nps 1425000 score cp 60 depth 18 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 2250 nodes 3227827 nps 1434000 score cp 60 depth 19 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 2360 nodes 3391443 nps 1437000 score cp 60 depth 19 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 3078 nodes 4466204 nps 1451000 score cp 60 depth 20 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 3266 nodes 4744223 nps 1452000 score cp 60 depth 20 seldepth 37 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7h7 e4d5 h7h5 d5c4 h5h4 c4c3 h4g4 c6d4 g4g7 a7b8
info time 5297 nodes 7852839 nps 1482000 score cp 65 depth 21 seldepth 40 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7g7 e4d5 g7g5 c6e5 a4a5 d5d4 g5g7 e5c6 a5a4 d3e4 a4b5 a7b8 g7d7 e4d5
info time 5547 nodes 8241908 nps 1485000 score cp 65 depth 21 seldepth 40 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7g7 e4d5 g7g5 c6e5 a4a5 d5d4 g5g7 e5c6 a5a4 d3e4 a4b5 a7b8 g7d7 e4d5
info time 9063 nodes 13662234 nps 1507000 score cp 67 depth 22 seldepth 40 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 g3g7 b5d3 b1b2 e7c8 b2b3 a7b8 g7g8 d3a6 b3a4 a6b5 a4b3 c6d7 g8g6 b8e5 g6g5 e5f6 g5f5 d7e6 f5f2 c8e7
info time 9844 nodes 14863448 nps 1509000 score cp 67 depth 22 seldepth 40 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 g3g7 b5d3 b1b2 e7c8 b2b3 a7b8 g7g8 d3a6 b3a4 a6b5 a4b3 c6d7 g8g6 b8e5 g6g5 e5f6 g5f5 d7e6 f5f2 c8e7
info time 15594 nodes 23581794 nps 1512000 score cp 71 depth 23 seldepth 40 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 16438 nodes 24854766 nps 1512000 score cp 71 depth 23 seldepth 40 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 23719 nodes 35922257 nps 1514000 score cp 71 depth 24 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 24985 nodes 37831023 nps 1514000 score cp 71 depth 24 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 34703 nodes 52776398 nps 1520000 score cp 71 depth 25 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 36469 nodes 55495624 nps 1521000 score cp 71 depth 25 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 b7c6 c3d4 c8e7 h3a3 c6b7 a3h3 e7c6 d4c3 a7b8 h3h7 b8c7 h7g7 c6e5 g7h7 b7c6 h7h6 c6b5
info time 70610 nodes 108274429 nps 1533000 score cp 79 depth 26 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 a7b8 h3h6 b8e5 c3b3 a6d3 h6h3 d3b5 h3h6 b7c7 h6h5 e5d4 h5h7 c7c6 h7h6 c6d5
info time 75547 nodes 116012824 nps 1535000 score cp 79 depth 26 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 a7b8 h3h6 b8e5 c3b3 a6d3 h6h3 d3b5 h3h6 b7c7 h6h5 e5d4 h5h7 c7c6 h7h6 c6d5
info time 124750 nodes 192644556 nps 1544000 score cp 85 depth 27 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 a7b8 h3h6 b8e5 c3b3 a6b5 h6e6 e5d4 e6e4 d4g7 e4e6 b7c7 e6g6 g7d4
info time 131625 nodes 203621815 nps 1546000 score cp 85 depth 27 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 b1c2 b5a6 g3a3 c6b7 a3h3 e7c8 c2c3 a7b8 h3h6 b8e5 c3b3 a6b5 h6e6 e5d4 e6e4 d4g7 e4e6 b7c7 e6g6 g7d4
info time 217516 nodes 334929802 nps 1539000 score cp 86 depth 28 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 g3g7 b5d3 b1b2 e7c8 b2b3 a7b8 g7g8 d3a6 b3a4 a6b5 a4b3 c6d7 g8g6 b8e5 g6h6 e5c7 h6f6 c8e7 f6f7 c7b8 f7g7 b8e5 g7h7 e5f6 h7f7
info time 229297 nodes 352739727 nps 1538000 score cp 86 depth 28 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 g3g7 b5d3 b1b2 e7c8 b2b3 a7b8 g7g8 d3a6 b3a4 a6b5 a4b3 c6d7 g8g6 b8e5 g6h6 e5c7 h6f6 c8e7 f6f7 c7b8 f7g7 b8e5 g7h7 e5f6 h7f7
info time 300016 nodes 460893223 nps 1536000 score cp 86 depth 28 seldepth 49 pv c6b5 g7g3 d8c8 g3g7 c8d7 g7g3 d7c6 g3g7 b5d3 b1b2 e7c8 b2b3 a7b8 g7g8 d3a6 b3a4 a6b5 a4b3 c6d7 g8g6 b8e5 g6h6 e5c7 h6h1 d7c6 h1e1 c8a7 b3c3 c6b7 e1e7 b7c6 c3d4 b5a6 d4e4 a6c8
bestmove c6b5
[Naum 4.1]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info score cp -44 depth 1 seldepth 6 time 0 nodes 55 nps 55000 tbhits 0 pv d8d7
info score cp -50 depth 2 seldepth 7 time 0 nodes 261 nps 261000 tbhits 0 pv c6b5 b1b2
info score cp -50 depth 3 seldepth 3 time 0 nodes 356 nps 356000 tbhits 0 pv c6b5 b1b2 b5a6
info score cp -31 depth 4 seldepth 11 time 0 nodes 2226 nps 2226000 tbhits 0 pv
info score cp -29 depth 5 seldepth 12 time 0 nodes 3069 nps 3069000 tbhits 0 pv
info score cp -31 depth 6 seldepth 14 time 0 nodes 4031 nps 4031000 tbhits 0 pv
info score cp -27 depth 7 seldepth 13 time 0 nodes 6335 nps 6335000 tbhits 0 pv
info score cp -20 depth 8 seldepth 16 time 0 nodes 18105 nps 18105000 tbhits 0 pv c6b5 b1b2 d8d7 b2c3 b5a6 g7f7 a7b8 c3b3
info score cp -18 depth 9 seldepth 16 time 16 nodes 28040 nps 1752500 tbhits 0 pv c6b5 b1b2 d8d7 g7g1 b5a6 g1d1 d7c6 d1d6 c6b5
info score cp -14 depth 10 seldepth 19 time 47 nodes 64274 nps 1367531 tbhits 0
info score cp -11 depth 11 seldepth 20 time 125 nodes 141202 nps 1129616 tbhits
info score cp -9 depth 12 seldepth 20 time 156 nodes 195364 nps 1252333 tbhits 0 pv c6b5 g7f7 b5a6 b1b2 d8d7 b2b3 a7c5 b4c5 d7c6 f7e7 c6c5 b3c3
info score cp -8 depth 13 seldepth 22 time 266 nodes 329353 nps 1238169 tbhits 0 pv c6b5 g7f7 b5a6 b1b2 d8d7 b2b3 a7c5 b4c5 d7c6 f7e7 c6c5 b3c3 c5d5
info score cp -9 depth 14 seldepth 24 time 687 nodes 833242 nps 1212870 tbhits 0 pv c6b5 b1b2 d8d7 b2b3 b5a6 g7h7 d7c6 h7e7 a7c5 b4c5 c6c5 b3c3 c5d5 e7d7
info score cp -6 depth 15 seldepth 25 time 1000 nodes 1226842 nps 1226842 tbhits 0 pv c6b5 b1b2 d8d7 g7h7 b5a6 h7h6 a6c4 b2c3 c4d5 h6h7 a7b8 b4b5 b8e5 c3b4 d5e4
info score cp -5 depth 16 seldepth 26 time 1500 nodes 1890797 nps 1260531 tbhits 0 pv c6b5 b1b2 d8d7 g7h7 b5a6 h7h6 a6c4 b2c3 c4d5 h6h7 a7c5 b4c5 d7c6 h7e7 c6c5 e7a7
info score cp -1 depth 17 seldepth 28 time 3500 nodes 4484088 nps 1281168 tbhits 0 pv c6b5 b1b2 a7b8 b2b3 d8d7 g7f7 b5a6 b3a4 a6c4 f7f2 b8e5 b4b5 d7c7 a4b4 c4d5 f2e2 e7g6
info score cp -1 depth 18 seldepth 28 time 4594 nodes 5858008 nps 1275143 tbhits 0 pv c6b5 b1b2 a7b8 b2b3 d8d7 g7f7 b5a6 b3a4 a6c4 f7f2 b8e5 b4b5 c4d5 a4b4 e7c6 b5c6 d7c6 f2f5
info score cp -1 depth 19 seldepth 30 time 7203 nodes 9049399 nps 1256337 tbhits 0 pv c6b5 b1b2 a7b8 b2b3 d8d7 g7f7 b5a6 b3a4 a6c4 f7f2 b8e5 b4b5 c4d5 a4b4 e7c6 b5c6 d7c6 f2f5 e5d4
info score cp 0 depth 20 seldepth 31 time 15437 nodes 19322907 nps 1251726 tbhits 0 pv c6b5 b1b2 b5a6 g7h7 a7b8 h7h8 d8c7 h8h6 a6b5 b2b3 e7f5 h6b6 f5d4 b3c3 d4e2 c3b2 e2d4 b2c3
info score cp 0 depth 21 seldepth 34 time 25625 nodes 31650817 nps 1235153 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 a7b8 h7h8 d8c7 h8h6 e7f5 h6b6 f5d4 b3c3 d4e2 c3b3 e2d4
info score cp 0 depth 22 seldepth 33 time 34437 nodes 42744112 nps 1241226 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 a7b8 h7h8 d8c7 h8h6 e7f5 h6b6 f5d4 b3c3 d4e2 c3b3 e2d4
info score cp 0 depth 23 seldepth 36 time 90484 nodes 110039125 nps 1216116 tbhits 0 pv c6b5 g7g3 e7d5 g3g7 d5e7
info score cp 2 depth 24 seldepth 40 time 142734 nodes 175417518 nps 1228982 tbhits 0 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 g7h7 a7b8 c5c6 d7c6 h7e7 a6d3 b2c3 d3f5 c3d4 b8g3 e7f7
info score cp 2 depth 25 seldepth 39 time 212656 nodes 264586692 nps 1244200 tbhits 0 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 g7h7 a7b8 c5c6 d7c6 h7e7 a6d3 b2c3 d3f5 c3d4 b8g3 e7f7 f5g4
bestmove c6b5
[Naum 4.2]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info score cp -44 depth 1 seldepth 6 time 0 nodes 55 nps 55000 tbhits 0 pv d8d7
info score cp -50 depth 2 seldepth 7 time 0 nodes 261 nps 261000 tbhits 0 pv c6b5 b1b2
info score cp -50 depth 3 seldepth 3 time 0 nodes 356 nps 356000 tbhits 0 pv c6b5 b1b2 b5a6
info score cp -31 depth 4 seldepth 11 time 0 nodes 2206 nps 2206000 tbhits 0 pv
info score cp -29 depth 5 seldepth 12 time 0 nodes 3041 nps 3041000 tbhits 0 pv
info score cp -31 depth 6 seldepth 14 time 0 nodes 3989 nps 3989000 tbhits 0 pv
info score cp -27 depth 7 seldepth 13 time 0 nodes 6254 nps 6254000 tbhits 0 pv
info score cp -20 depth 8 seldepth 15 time 15 nodes 17877 nps 1191800 tbhits 0 pv c6b5 b1b2 d8d7 b2c3 b5a6 g7f7 a7b8 c3b3
info score cp -18 depth 9 seldepth 17 time 15 nodes 27728 nps 1848533 tbhits 0 pv c6b5 b1b2 d8d7 g7g1 b5a6 g1d1 d7c6 d1d6 c6b5
info score cp -14 depth 10 seldepth 19 time 31 nodes 61521 nps 1984548 tbhits 0
info score cp -14 depth 11 seldepth 18 time 46 nodes 80426 nps 1748391 tbhits 0
info score cp -9 depth 12 seldepth 20 time 93 nodes 148320 nps 1594838 tbhits 0
info score cp -8 depth 13 seldepth 22 time 187 nodes 296420 nps 1585133 tbhits 0 pv c6b5 b1b2 d8d7 b2b3 b5a6 g7h7 d7c6 h7e7 a7c5 b4c5 c6c5 b3c3 c5d6
info score cp -9 depth 14 seldepth 22 time 234 nodes 394625 nps 1686431 tbhits 0 pv c6b5 b1b2 d8d7 b2b3 b5a6 g7h7 d7c6 h7e7 a7c5 b4c5 c6c5 b3c3 c5d6 e7a7
info score cp -9 depth 15 seldepth 24 time 375 nodes 643636 nps 1716362 tbhits 0 pv c6b5 b1b2 d8d7 b2b3 b5a6 g7h7 d7c6 h7e7 a7c5 b4c5 c6c5 b3c3 c5d6 e7g7 d6d5
info score cp -7 depth 16 seldepth 25 time 765 nodes 1293948 nps 1691435 tbhits
info score cp -4 depth 17 seldepth 28 time 2000 nodes 3454626 nps 1727313 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 d8d7 b3a4 a6d3 g7f7 a7c5 b4c5 d7c6 f7e7 c6c5 a4b3 c5d4 e7d7 d4e3
info score cp -3 depth 18 seldepth 28 time 4015 nodes 6912235 nps 1721602 tbhits 0 pv c6b5 b1b2 a7b8 b2b3 d8d7 g7f7 b5a6 b3a4 a6c4 f7h7 c4d3 h7f7 d3c4
info score cp -1 depth 19 seldepth 30 time 6812 nodes 11648804 nps 1710041 tbhits 0 pv c6b5 b1b2 a7b8 b2b3 d8d7 g7f7 b5a6 b3a4 a6c4 f7f3 c4d5 f3h3 b8e5 b4b5 d7c7 h3h7 e5f6 a4b4 d5e4
info score cp 0 depth 20 seldepth 32 time 11765 nodes 20195684 nps 1716590 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 d8d7 h7h6 e7c6 h6h7 c6e7
info score cp 0 depth 21 seldepth 31 time 15093 nodes 25810163 nps 1710075 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 d8d7 h7h6 e7c6 h6h7 c6e7
info score cp 0 depth 22 seldepth 33 time 21406 nodes 36338499 nps 1697584 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 d8d7 h7h6 e7c6 h6h7 c6e7
info score cp 6 depth 23 seldepth 37 time 102890 nodes 163847474 nps 1592452 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 a7b8 h7h8 d8c7 h8h6 e7c6 h6h7 c7c8 h7g7 b8e5 g7h7 c6d4 b3c3 b5d7 h7h5 d4f3 c3c4 d7e6
info score cp 6 depth 24 seldepth 38 time 151000 nodes 243979307 nps 1615757 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 a7b8 h7h8 d8c7 h8h6 e7c6 h6h7 c7d8 h7b7 c6d4 b3c3 b8e5 b7h7 d8c8 h7h5 d4f3 c3b3 c8c7 h5h7
info score cp 6 depth 25 seldepth 38 time 209140 nodes 346659244 nps 1657546 tbhits 0 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 a7b8 h7h8 d8c7 h8h6 e7c6 h6h7 c7d8 h7b7 c6d4 b3c3 b8e5 b7h7 d8c8 h7f7 b5a6 f7h7 d4c6 c3b3 a6d3
bestmove c6b5
[RobboLito_0085g3_w32.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info depth 1 seldepth 5 score cp -136  time 0 nodes 29 nps 0 pv a7c5 b4c5
info depth 1 seldepth 5 score cp -80  time 0 nodes 33 nps 0 pv d8e8 b1b2
info depth 1 seldepth 5 score cp -7  time 0 nodes 39 nps 0 pv d8d7 b1b2
info depth 2 seldepth 9 score cp -10  time 0 nodes 172 nps 0 pv d8d7 b1c2
info depth 2 seldepth 9 score cp 31  time 0 nodes 306 nps 0 pv c6b5 b1c2 b5a6 c2c3
info depth 3 seldepth 9 score cp 31  time 0 nodes 377 nps 0 pv c6b5 b1c2 b5a6 c2c3
info depth 4 seldepth 11 score cp 37  time 0 nodes 834 nps 0 pv c6b5 b1c2 a7b8 c2b3 b5a6
info depth 5 seldepth 11 score cp 37  time 0 nodes 1247 nps 0 pv c6b5 b1c2 a7b8 c2b3 b5a6
info depth 6 seldepth 13 score cp 57  time 0 nodes 2410 nps 0 pv c6b5 b1c2 b5a6 c2b3 a7b8 g7f7 d8d7
info depth 7 seldepth 15 score cp 48  time 16 nodes 6290 nps 393000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6
info depth 8 seldepth 15 score cp 56 lowerbound time 16 nodes 7629 nps 476000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6
info depth 8 seldepth 16 score cp 62  time 16 nodes 9289 nps 580000 pv c6b5 b1c2 b5a6 c2b3 a7b8 g7f7 a6c8 b3a4
info depth 9 seldepth 18 score cp 63  time 16 nodes 12548 nps 784000 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7h7 e7d5
info depth 10 seldepth 21 score cp 50  time 46 nodes 32469 nps 705000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6 c2c3 a7b8 c3d4 a6b5
info depth 11 seldepth 21 score cp 49  time 63 nodes 44179 nps 701000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6 c2c3 a7b8 c5c6 d7d6
info depth 12 seldepth 21 score cp 57 lowerbound time 93 nodes 70746 nps 760000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 b1c2 b5a6 c2c3 a7b8 c5c6 d7d6
info depth 12 seldepth 23 score cp 65 lowerbound time 117 nodes 91746 nps 784000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 c6e7
info depth 12 seldepth 23 score cp 72  time 146 nodes 121853 nps 834000 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7g1 a6c4 g1e1 e5f6 e1e4 c4d5
info depth 13 seldepth 27 score cp 72  time 223 nodes 193674 nps 868000 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h8 d8c7 h8h7 c7d7 c2c3 a7b8 c3d4 b5c6 d4c4 cpuload 980
info depth 14 seldepth 27 score cp 74  time 313 nodes 281982 nps 900000 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h8 d8c7 h8h7 c7d7 c2c3 a7b8 c3d4 b5c6 d4c4 c6e4 h7g7 b8e5
info depth 15 seldepth 29 score cp 74  time 527 nodes 536457 nps 1017000 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h8 d8c7 h8h7 c7d7 c2c3 a7b8 c3d4 b5c6 d4c4 c6e4 h7g7 b8e5
info depth 16 seldepth 33 score cp 66  time 1641 nodes 1843578 nps 1123000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3g7 e7c6 g7g8 c8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c8c7 g8g7 c7d8 b2b3 a7b8 b3a4 b8e5 g7h7 a6d3
info depth 17 seldepth 33 score cp 66  time 1954 nodes 2207495 nps 1129000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3g7 e7c6 g7g8 c8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 d7c8 g7g8 c8c7 g8g7 c7d8 b2b3 a7b8 b3a4 b8e5 g7h7 a6d3
info depth 18 seldepth 33 score cp 66  time 2528 nodes 2900931 nps 1147000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3g7 e7c6 g7g8 c8d7 b1b2 b5a6 b2b3 a6b5 g8g7 c6e7 b3c3 a7b8 c3d4 b5c6
info depth 19 seldepth 34 score cp 64  time 3482 nodes 4048994 nps 1162000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3g7 e7c6 g7g8 c8d7 g8g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5f1 b3a4 f1d3 b7g7 e6d5 g7g5 d5d4 g5g4 d3e4 b4b5
info depth 20 seldepth 34 score cp 60  time 4438 nodes 5235564 nps 1179000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 e6d5 c7d7 d5e4 d7c7 a6b5 c7b7 b5a6 b7c7
info depth 21 seldepth 34 score cp 68 lowerbound time 6271 nodes 7577460 nps 1208000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5d3 b3c3 d3a6 b7c7 e6d5 c7d7 d5e4 d7c7 a6b5 c7b7 b5a6 b7c7
info depth 21 seldepth 36 score cp 69  time 7761 nodes 9540775 nps 1229000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 c3d2 e2c4 d2e3 b8a7 b7g7 c4b5 g7g6 e6d5 g6d6 d5c4
info depth 22 seldepth 36 score cp 66  time 9980 nodes 12392146 nps 1241000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 c3d2 e2c4 d2e3 b8a7 b7g7 c4d5 g7g6 e6e5
info depth 23 seldepth 37 score cp 66  time 14839 nodes 18523570 nps 1248000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 c3d2 e2c4 d2e3 b8a7 b7g7 c4d5 g7g6 e6e5
info depth 24 seldepth 40 score cp 74 lowerbound time 25693 nodes 32247110 nps 1255000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 a6b5 g7b7 b5e2 b3c3 a7b8 c3d2 e2c4 d2e3 b8a7 b7g7 c4d5 g7g6 e6e5
info depth 24 seldepth 46 score cp 82 lowerbound time 37869 nodes 48596946 nps 1283000 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 a7b8 b3a4 c6d4 a4a5 a6d3 a5b6 d3b5 h7h4 b8f4 h4h8 e4d5 h8d8 d5c4
info depth 24 seldepth 46 score cp 82  time 38739 nodes 49896960 nps 1288000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 e4d3 h7h3 d3d4 h3h4 d4d5 h4h5 c6e5 b3a4 a6d3 h5h8 d3g6 a4b5 e5c6 h8h6 g6d3 b5a4 d3c2 a4b5 c6d4 b5a5 c2e4 h6d6 d5c4
info depth 25 seldepth 46 score cp 71  time 54251 nodes 72962689 nps 1344000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 e4d3 h7h3 d3d4 h3h4 d4d5 h4h5 c6e5 h5h8 a6b5 b3c3 e5c6 h8h5 d5e6 h5h6 e6d7 h6h7 c6e7 c3d4 a7b8 d4e4
info depth 26 seldepth 46 score cp 72  time 71900 nodes 99152472 nps 1379000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 e4d3 h7h3 d3d4 h3h4 d4d5 h4h5 c6e5 h5h8 a6b5 b3c3 b5c6 h8f8 e5d7 f8f3 a7b8 f3d3 d5e6 d3e3 d7e5 c3d4
info depth 27 seldepth 46 score cp 80 lowerbound time 101984 nodes 143673540 nps 1408000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 e4d3 h7h3 d3d4 h3h4 d4d5 h4h5 c6e5 h5h8 a6b5 b3c3 b5c6 h8f8 c6a4 f8d8 d5c6 d8e8 e5f3 e8e6 c6b5
info depth 27 seldepth 55 score cp 88 lowerbound time 135616 nodes 193641496 nps 1427000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 d7h7 e4d3 h7h3 d3d4 h3h4 d4d5 h4h5 c6e5 h5h8 a6b5 b3c3 e5c6 h8h5 d5e6 h5h6 e6d7 h6h7 c6e7 h7h8 e7d5 c3b3 d7c6 h8h6 c6c7 h6h7 b5d7 b3c4
info depth 27 seldepth 55 score cp 92  time 176566 nodes 254036128 nps 1438000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 d7c6 b1b2 b5a6 g3a3 c6b7 a3f3 a6c4 f3f4 c4d5 f4h4 a7b8 b4b5 b8e5 b2a3 d5g8 h4e4 e5f6 a3b4 e7d5 b4a5 g8h7 c5c6 b7c7 e4e8 f6d4 a5a6 d4b6
info depth 28 seldepth 55 score cp 99  time 259289 nodes 377997856 nps 1457000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 d7c6 b1b2 b5a6 g3a3 c6b7 a3h3 e7c6 h3h7 b7a8 b2b3 a6b5 h7g7 a7b8 g7h7 b8e5 h7f7 a8b8 f7h7 c6d4 b3c3 d4f3 c3c2 b8c8 h7f7 f3e1 c2b3 e1d3 f7a7
info depth 28 seldepth 55 score cp 99  time 299996 nodes 439947333 nps 1466000 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 c6e7 g7g3 d7c6 b1b2 b5a6 g3a3 c6b7 a3h3 e7c6 h3h7 b7a8 b2b3 a6b5 h7h4 a7b8 h4h6 b8e5 h6h7 e5g3 h7h6 a8b7
bestmove c6b5 ponder g7g3
[Rybka 3 1-cpu w32.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info depth 2 score cp -40 time 1 nodes 181 nps 185344 pv c6b5
info depth 3 score cp -30 time 17 nodes 359 nps 21624 pv c6b5
info depth 4 score cp -30 time 17 nodes 503 nps 30298 pv c6b5
info depth 5 score cp -29 time 17 nodes 757 nps 45598 pv c6b5 b1b2
info depth 6 score cp -29 time 33 nodes 1228 nps 38105 pv c6b5 b1b2 a7c5
info depth 7 score cp -29 time 48 nodes 2146 nps 45781 pv c6b5 b1b2 a7c5 b4c5 b5a6 b2c3
info depth 8 score cp -29 time 79 nodes 4219 nps 54686 pv c6b5 b1b2 a7c5 b4c5 b5a6 b2c3 a6b7 c3d3
info depth 9 score cp -27 time 173 nodes 10527 nps 62310 pv c6b5 b1b2 b5a6 b2c3 a6b7 g7f7
info depth 10 score cp -22 time 314 nodes 20740 nps 67636 pv c6b5 b1b2 b5a6 b2c3 d8d7 g7h7 d7c6
info depth 11 score cp -20 time 486 nodes 33436 nps 70449 pv c6b5 b1b2 b5a6 b2c3 d8d7 g7h7 a7c5 b4c5 d7e6
info depth 12 score cp -17 time 861 nodes 62272 nps 74061 pv c6b5 b1b2 b5a6 b2c3 a6b5 g7f7 a7b8 f7f8 d8c7 c3b3 e7d5
info depth 13 score cp -10 time 1908 nodes 141573 nps 75980 pv c6b5 b1b2 b5a6 b2c3 a6b5 g7f7 a7b8 f7f8 d8c7 c3b3 e7c6 f8f7
info depth 14 score cp -10 time 2595 nodes 194246 nps 76650 pv c6b5 b1b2 b5a6 b2c3 a6b5 g7f7 a7b8 f7f8 d8c7 c3b3 e7c6 f8f7 c7d8
info depth 15 score cp -10 time 4095 nodes 298512 nps 74646 pv c6b5 b1b2 b5a6 g7f7 a7b8 f7f8 d8c7 b2b3 a6b5 f8f6 e7c6 f6f7 c7d8 f7h7 b8e5
info depth 16 score cp -10 time 6501 nodes 470475 nps 74106 pv c6b5 b1b2 b5a6 g7h7 a6d3 h7h6 d3g6 b2a3 a7c5 b4c5 d8c7 a3b3 g6f7 b3b4 f7g6
info depth 17 score cp -4 time 14017 nodes 1012905 nps 73996 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8e5 h7b7 c6d4 b7f7 d4c2
info depth 18 score cp 0 time 24814 nodes 1835703 nps 75754 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8c7 e3e4 c6b4 e4d4
info depth 19 score cp 0 time 31329 nodes 2366316 nps 77343 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8c7 e3e4 c6b4 e4d4 b4c2 d4d5 c2b4 d5d4 b4c2 d4d5 c2b4 d5d4 b4c2 d4d5 c2b4 d5d4 b4c2 d4d5 c2b4 d5d4 b4c2
info depth 20 score cp 0 time 43017 nodes 3327232 nps 79203 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8c7 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8
info depth 21 score cp 0 time 59111 nodes 4618224 nps 80003 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8c7 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8
info depth 22 score cp 0 time 90345 nodes 7013864 nps 79497 pv c6b5 b1b2 b5a6 g7h7 a6b5 b2c3 a7b8 c3d4 e7c6 d4e3 b8c7 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8 h7h8 d8d7 h8h7 d7d8
bestmove c6b5 ponder b1b2

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 1:36 pm
by Jeremy Bernstein
Here are a couple more. I think that we can safely lay to rest the idea that only Rybka, Familie Ippo and Naum choose something unique, other than ...Bb5. Every other engine I've tested does, too, after 5 minutes of thinking time.

[Critter_090_32bit.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info multipv 1 depth 2 seldepth 2 nodes 93 time 0 nps 0 hashfull 0 score cp 0 pv d8d7 b1c2 
info multipv 1 depth 2 seldepth 3 nodes 225 time 0 nps 0 hashfull 0 score cp 28 pv c6b5 b1c2 b5a6 c2c3 
info multipv 1 depth 3 seldepth 5 nodes 328 time 0 nps 0 hashfull 0 score cp 28 pv c6b5 b1c2 b5a6 c2c3 
info multipv 1 depth 4 seldepth 6 nodes 706 time 0 nps 0 hashfull 0 score cp 77 pv c6b5 b1c2 b5a6 c2c3 d8d7 
info multipv 1 depth 5 seldepth 7 nodes 1000 time 0 nps 0 hashfull 0 score cp 77 pv c6b5 b1c2 b5a6 c2c3 d8d7 
info multipv 1 depth 6 seldepth 9 nodes 3145 time 0 nps 0 hashfull 0 score cp 94 pv c6b5 g7g2 d8c7 g2g7 c7d7 b1c2 b5a6 
info multipv 1 depth 7 seldepth 9 nodes 4506 time 0 nps 0 hashfull 0 score cp 94 pv c6b5 g7g2 d8c7 g2g7 c7d7 b1c2 b5a6 
info multipv 1 depth 8 seldepth 11 nodes 6858 time 0 nps 0 hashfull 1 score cp 87 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7h7 a6d3 h7f7 
info multipv 1 depth 9 seldepth 13 nodes 9006 time 0 nps 0 hashfull 1 score cp 87 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7h7 a6d3 h7f7 
info multipv 1 depth 10 seldepth 13 nodes 14218 time 0 nps 0 hashfull 2 score cp 96 pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7h7 a6d3 h7f7 d3c4 
info multipv 1 depth 11 seldepth 18 nodes 82138 time 62 nps 1324806 hashfull 12 score cp 108 lowerbound pv c6b5 b1c2 b5a6 c2b3 a7b8 b3a4 b8e5 g7h7 a6d3 h7h5 e7f5 b4b5 d8c7 h5h7 e5g7 
info multipv 1 depth 11 seldepth 18 nodes 161876 time 125 nps 1295008 hashfull 23 score cp 117 pv c6b5 b1b2 b5a6 g7h7 d8d7 b2b3 a7b8 b3a4 a6d3 h7f7 d7e6 f7f8 
info multipv 1 depth 12 seldepth 19 nodes 201544 time 156 nps 1291948 hashfull 29 score cp 115 pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 d8d7 h7h6 e7c6 h6d6 d7c7 d6g6 c6e5 g6g7 b5d7 
info multipv 1 depth 13 seldepth 23 nodes 326192 time 234 nps 1393982 hashfull 47 score cp 103 upperbound pv c6b5 b1b2 b5a6 b2b3 a6b5 g7h7 d8d7 h7h6 e7c6 h6d6 d7c7 d6g6 c6e5 g6g7 b5d7 
info multipv 1 depth 13 seldepth 24 nodes 419124 time 296 nps 1415959 hashfull 60 score cp 116 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h6 a7b8 h6b6 e7c6 c2b3 c6d4 b3c3 b8e5 b6b7 d4f3 c3b3 
info multipv 1 depth 14 seldepth 24 nodes 574910 time 406 nps 1416034 hashfull 81 score cp 111 pv c6b5 g7g2 d8c7 g2g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6d6 d7c7 b2c3 a6b5 d6h6 c6e5 h6h7 b5d7 
info multipv 1 depth 15 seldepth 24 nodes 1077107 time 718 nps 1500149 hashfull 146 score cp 100 upperbound pv c6b5 g7g2 d8c7 g2g7 c7d7 g7g3 e7c6 g3g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6d6 d7c7 b2c3 a6b5 d6h6 c6e5 h6h7 b5d7 
info multipv 1 depth 15 seldepth 36 nodes 1486348 time 984 nps 1510516 hashfull 196 score cp 116 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6g7 c6e7 g7h7 a6d3 h7h3 d3c4 h3h4 c4g8 h4h6 e7f5 h6h8 g8d5 h8h7 f5e7 b2c3 d5e4 h7h8 e7d5 c3d4 
info multipv 1 depth 16 seldepth 36 nodes 1653880 time 1078 nps 1534211 hashfull 214 score cp 116 pv c6b5 g7g3 e7c6 g3g8 d8d7 b1b2 b5a6 g8g7 c6e7 g7h7 a6d3 h7h3 d3c4 h3h4 c4g8 h4h6 e7f5 h6h8 g8d5 h8h7 f5e7 b2c3 d5e4 h7h8 e7d5 c3d4 
info multipv 1 depth 17 seldepth 36 nodes 1824695 time 1218 nps 1498107 hashfull 233 score cp 116 pv c6b5 g7g3 e7c6 g3g8 d8d7 b1b2 b5a6 g8g7 c6e7 g7h7 a6d3 h7h3 d3c4 h3h4 c4g8 h4h6 e7f5 h6h8 g8d5 h8h7 f5e7 b2c3 d5e4 h7h8 e7d5 c3d4 
info multipv 1 depth 18 seldepth 36 nodes 2428978 time 1625 nps 1494755 hashfull 294 score cp 116 pv c6b5 g7g3 e7c6 g3g8 d8d7 b1b2 b5a6 g8g7 c6e7 g7h7 a6d3 h7h3 d3c4 h3h4 c4g8 h4h6 e7f5 h6h8 g8d5 h8h7 f5e7 b2c3 d5e4 h7h8 e7d5 c3d4 
info multipv 1 depth 19 seldepth 37 nodes 3421052 time 2265 nps 1510398 hashfull 390 score cp 112 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 g7h7 a6b5 h7h6 e6d5 h6h5 d5d4 h5h4 d4e5 h4h7 e7c6 h7b7 b5a6 b7d7 c6d4 b3c3 
info multipv 1 depth 20 seldepth 37 nodes 4680180 time 3078 nps 1520526 hashfull 490 score cp 112 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 g7h7 a6b5 h7h6 e6d5 h6h5 d5d4 h5h4 d4e5 h4h7 e7c6 h7b7 b5a6 b7d7 c6d4 b3c3 
info multipv 1 depth 21 seldepth 37 nodes 7346348 time 4796 nps 1531765 hashfull 652 score cp 107 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 g7h7 a6b5 h7h6 e6d5 h6h5 d5d4 h5h4 d4e5 h4h7 e7c6 h7b7 b5a6 b7g7 c6d4 b3c3 
info multipv 1 depth 22 seldepth 37 nodes 11258890 time 7250 nps 1552950 hashfull 800 score cp 110 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 g7h7 a6b5 h7h6 e6d5 h6h5 d5d4 h5h4 d4e5 h4h7 e7c6 b3c3 a7b8 h7b7 b5a6 
info multipv 1 depth 23 seldepth 37 nodes 18575419 time 11765 nps 1578871 hashfull 927 score cp 115 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 g7h7 a6b5 h7h6 e6d5 h6h5 d5d4 h5h4 d4e5 h4h7 e7c6 b3c3 e5e6 h7b7 b5a6 b7g7 a7b8 
info multipv 1 depth 24 seldepth 37 nodes 30224880 time 18812 nps 1606680 hashfull 986 score cp 115 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 c6e7 b3a4 a6d3 g7g1 e7c6 g1g5 c6d4 g5g7 a7b8 g7b7 d3c2 a4a3 b8f4 b4b5 c2e4 c5c6 f4c7 a3b4 e6d6 
info multipv 1 depth 25 seldepth 45 nodes 48309007 time 29500 nps 1637593 hashfull 999 score cp 115 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7d6 c6d4 a4a5 e4e5 d6h6 e5d5 h6h5 d5c6 h5h6 c6c7 h6d6 d4c6 a5a4 d3e4 a4b5 a7b8 b5c4 c7b7 d6d7 b8c7 
info multipv 1 depth 26 seldepth 45 nodes 82027410 time 49390 nps 1660810 hashfull 999 score cp 127 lowerbound pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7d6 c6d4 a4a5 e4e5 d6h6 e5d5 h6h5 d5c6 h5h6 c6c7 h6f6 d3c4 f6d6 d4c6 a5a4 c6e5 a4a5 c4f7 
info multipv 1 depth 26 seldepth 52 nodes 112890065 time 67906 nps 1662446 hashfull 999 score cp 139 lowerbound pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 b2b3 e6d5 g7d7 d5e4 b3a4 a6d3 d7d6 c6d4 a4a5 e4e5 d6h6 e5d5 h6h5 d5c6 h5h6 c6c7 h6f6 d3c4 f6d6 d4c6 a5a4 c6e5 a4a5 c4f7 
info multipv 1 depth 26 seldepth 72 nodes 173595105 time 104093 nps 1667692 hashfull 999 score cp 148 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6d6 d7c7 b2b3 a6b5 d6h6 c7b7 h6h7 b7a6 h7h1 a7b8 h1h6 b8e5 b3a3 e5f4 h6g6 a6b7 g6g7 f4c7 a3b3 c6d4 b3c3 d4f5 
info multipv 1 depth 27 seldepth 72 nodes 298300343 time 177859 nps 1677173 hashfull 1000 score cp 159 lowerbound pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6d6 d7c7 b2b3 a6b5 d6h6 c7b7 h6h7 b7a6 h7h1 a7b8 h1h6 b8e5 b3a3 e5g7 h6g6 g7d4 a3b3 a6b7 g6g4 d4f6 
info multipv 1 depth 27 seldepth 72 nodes 421972030 time 250656 nps 1683470 hashfull 1000 score cp 168 pv c6b5 g7g3 e7c6 g3g8 d8d7 g8g7 d7e6 b1b2 b5a6 g7g6 e6d7 g6d6 d7c7 b2b3 a6b5 d6h6 c7b7 h6h7 b7a6 h7h1 a7b8 h1h6 b8c7 h6g6 a6b7 g6g5 c7e5 g5g6 c6d4 b3c3 b7c7 g6b6 e5g7 b6g6 d4f5 c3d2 b5c6 d2d3 g7h8 g6g5 f5d4 d3c4 h8f6 g5g3 
bestmove c6b5 ponder g7g3
[komodo-13-32-ja.exe]
position fen 3k4/b3n1R1/P1b5/2P5/1P6/8/8/1K6 b - - 0 45
go movetime 300000
info depth 1 time 10 nodes 147 score cp 73 nps 14700 pv d8d7
info depth 2 time 10 nodes 343 score cp 76 nps 34300 pv c6b5 b1c2 b5a6
info depth 3 time 10 nodes 711 score cp 76 nps 71100 pv c6b5 b1c2 b5a6
info depth 4 time 15 nodes 1721 score cp 88 nps 110144 pv c6b5 g7g2 b5a6 b1c2
info depth 5 time 15 nodes 2777 score cp 90 nps 177728 pv c6b5 b1c2 d8d7 c2c3 b5a6
info depth 5 time 15 nodes 2888 score cp 90 nps 184832 pv c6b5 b1c2 d8d7 c2c3 b5a6
info depth 6 time 15 nodes 4527 score cp 94 nps 289728 pv c6b5 b1c2 d8d7 c2c3 b5a6 c5c6 d7d6
info depth 6 time 31 nodes 4993 score cp 94 nps 159776 pv c6b5 b1c2 d8d7 c2c3 b5a6 c5c6 d7d6
info depth 7 time 31 nodes 10407 score cp 97 nps 333024 pv c6b5 b1c2 d8d7 g7g2 b5a6 g2d2 d7c6 d2d6 c6b5
info depth 7 time 31 nodes 13286 score cp 97 nps 425152 pv c6b5 b1c2 d8d7 g7g2 b5a6 g2d2 d7c6 d2d6 c6b5
info depth 8 time 62 nodes 36375 score cp 98 nps 582000 pv c6b5 g7g3 e7c6 g3g7 b5a6 b1b2 a7b8 b2b3
info depth 8 time 62 nodes 39281 score cp 98 nps 628496 pv c6b5 g7g3 e7c6 g3g7 b5a6 b1b2 a7b8 b2b3
info depth 9 time 93 nodes 67502 score cp 105 nps 720021 pv c6b5 g7g3 e7c6 g3g8
info depth 9 time 93 nodes 69922 score cp 105 nps 745834 pv c6b5 g7g3 e7c6 g3g8
info depth 10 time 203 nodes 158033 score cp 111 nps 778008 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h8 d8d7 c2b3 e7c6 h8h7 d7e6 b3c3
info depth 10 time 203 nodes 161853 score cp 111 nps 796814 pv c6b5 b1c2 b5a6 g7h7 a6b5 h7h8 d8d7 c2b3 e7c6 h8h7 d7e6 b3c3
info depth 11 time 375 nodes 332252 score cp 107 nps 886005 pv c6b5 g7g3 e7c6 g3b3 c6b8 b1b2 b8a6 b2a3 a7b8 b3e3 d8d7
info depth 11 time 390 nodes 340297 score cp 107 nps 871160 pv c6b5 g7g3 e7c6 g3b3 c6b8 b1b2 b8a6 b2a3 a7b8 b3e3 d8d7
info depth 12 time 515 nodes 453554 score cp 113 nps 879619 pv c6b5 g7g3 e7c6 g3b3 c6b8 b1b2 b8a6 b2a3 d8d7 b3e3 a6b8 a3b3 b8c6
info depth 12 time 531 nodes 464741 score cp 113 nps 874806 pv c6b5 g7g3 e7c6 g3b3 c6b8 b1b2 b8a6 b2a3 d8d7 b3e3 a6b8 a3b3 b8c6
info depth 13 time 796 nodes 710052 score cp 113 nps 891045 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3h3 b8a6 h3h8 d8c7 h8h7 c7b8 h7h4 b8b7 b1c2 a7b8 h4h7 b7c6 h7h6
info depth 13 time 828 nodes 723512 score cp 113 nps 873674 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3h3 b8a6 h3h8 d8c7 h8h7 c7b8 h7h4 b8b7 b1c2 a7b8 h4h7 b7c6 h7h6
info depth 14 time 1062 nodes 957966 score cp 110 nps 901615 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3f3 b8a6 f3f7 c7b8 f7f4 b8b7 b1c2 a6c7
info depth 14 time 1125 nodes 998648 score cp 110 nps 887687 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3f3 b8a6 f3f7 c7b8 f7f4 b8b7 b1c2 a6c7
info depth 15 time 1515 nodes 1422085 score cp 112 nps 938282 pv c6b5 g7g3 e7c6
info depth 15 time 1609 nodes 1484293 score cp 112 nps 922279 pv c6b5 g7g3 e7c6
info depth 16 time 2796 nodes 2681441 score cp 113 nps 958727 pv c6b5 g7g3 d8c7
info depth 16 time 2953 nodes 2814040 score cp 113 nps 952902 pv c6b5 g7g3 d8c7
info depth 17 time 4484 nodes 4437493 score cp 114 nps 989545 pv c6b5 g7g3 d8c7
info depth 17 time 4640 nodes 4575183 score cp 114 nps 985898 pv c6b5 g7g3 d8c7
info depth 18 time 5718 nodes 5708391 score cp 113 nps 998188 pv c6b5 g7g3 d8c7
info depth 18 time 7171 nodes 7121531 score cp 113 nps 992980 pv c6b5 g7g3 d8c7
info depth 19 time 9062 nodes 9239357 score cp 114 nps 1019515 pv c6b5 g7g3 d8c7 b1b2 b5a6 g3a3 c7b7 a3h3 e7c6 h3h7 b7c8 h7h8 c8d7 h8h7 c6e7 h7h8 a6b5 b2c3 e7c6 h8h7 d7e6 h7b7 b5a6 b7c7
info depth 19 time 10312 nodes 10489970 score cp 114 nps 1017209 pv c6b5 g7g3 d8c7 b1b2 b5a6 g3a3 c7b7 a3h3 e7c6 h3h7 b7c8 h7h8 c8d7 h8h7 c6e7 h7h8 a6b5 b2c3 e7c6 h8h7 d7e6 h7b7 b5a6 b7c7
info depth 20 time 16968 nodes 17766901 score cp 115 nps 1047036 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3b3 c8c7 b1b2 e7d5 b2a3 b5a6 b3g3 a7b8 a3a4 c7b7 g3g7 b8c7 g7g5 d5c3 a4b3 c3e4
info depth 20 time 20703 nodes 21403579 score cp 115 nps 1033833 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 d7c8 g3b3 c8c7 b1b2 e7d5 b2a3 b5a6 b3g3 a7b8 a3a4 c7b7 g3g7 b8c7 g7g5 d5c3 a4b3 c3e4
info depth 21 time 28109 nodes 29376622 score cp 116 nps 1045082 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3b3 b5c4 b3b2 c6e7 b1c1 d7c6 b2h2 c4a6 h2h7 c6d7 h7h8 e7c6 h8h7 d7e6 h7h6 e6d7 h6h7
info depth 21 time 30265 nodes 31503481 score cp 116 nps 1040899 pv c6b5 g7g3 d8c7 g3g7 c7d7 g7g3 e7c6 g3b3 b5c4 b3b2 c6e7 b1c1 d7c6 b2h2 c4a6 h2h7 c6d7 h7h8 e7c6 h8h7 d7e6 h7h6 e6d7 h6h7
info depth 22 time 45984 nodes 48403161 score cp 120 nps 1052600 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3g3 b8a6 g3g7 c7b8 g7g4 b8b7 g4g7 b7a8 g7g4 a7b8 b1a2 a8b7 a2a3 b8e5 g4e4 e5h8 a3b3 a6c7
info depth 22 time 49296 nodes 51679927 score cp 120 nps 1048340 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3g3 b8a6 g3g7 c7b8 g7g4 b8b7 g4g7 b7a8 g7g4 a7b8 b1a2 a8b7 a2a3 b8e5 g4e4 e5h8 a3b3 a6c7
info depth 23 time 62906 nodes 66463888 score cp 124 nps 1056554 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3g3 b8a6 g3g7 c7b8 g7g4 b8b7 g4g7 b7a8 g7g4 a7b8 b1a2 a8b7 a2b3 b7c6 g4g6 c6d5 g6b6 b5c4 b3a4 b8e5 c5c6
info depth 23 time 67109 nodes 70677416 score cp 124 nps 1053167 pv c6b5 g7g3 e7c6 g3b3 c6b8 b3a3 d8c7 a3g3 b8a6 g3g7 c7b8 g7g4 b8b7 g4g7 b7a8 g7g4 a7b8 b1a2 a8b7 a2b3 b7c6 g4g6 c6d5 g6b6 b5c4 b3a4 b8e5 c5c6
info depth 24 time 102781 nodes 108819530 score cp 131 nps 1058748 pv c6b5 g7g3
info depth 24 time 105250 nodes 111293904 score cp 131 nps 1057424 pv c6b5 g7g3
info depth 25 time 183640 nodes 192829262 score cp 135 nps 1050035 pv c6b5 g7g3
info depth 25 time 185781 nodes 194941437 score cp 135 nps 1049306 pv c6b5 g7g3
info depth 26 time 247750 nodes 258961734 score cp 135 nps 1045254 pv c6b5 g7g3
info depth 26 time 250984 nodes 262168764 score cp 135 nps 1044562 pv c6b5 g7g3
bestmove c6b5 ponder g7g3

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 2:10 pm
by Jeremy Bernstein
To summarize

Code: Select all

                     bestmove     eval
Critter 0.9          Bb5          +1.68
HIARCS 13.2          Bb5          +2.31
Houdini 1.0          Bb5          +0.82
IPPOLIT 0.08a        Bb5          +0.86
Komodo 1.3           Bb5          +1.35
Naum 4.1             Bb5          +0.02
Naum 4.2             Bb5          +0.06
RobboLito 0085g3     Bb5          +0.99
Rybka 3              Bb5           0.00
(NOTE THAT THESE RESULTS ARE IN TERMS OF THE SIDE TO MOVE -- THE "OBJECTIVE" EVAL WOULD BE NEGATIVE)

So what in the world are people talking about, actually? Only Rybka and Naum evaluate the position as a clear draw. The Ippos' eval is increasing with each ply. Same for Critter. HIARCS is kind of standing still around +2.2. This position seems not merely inconclusive, but wholly irrelevant, as far as I can tell. Can someone enlighten me?

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 3:13 pm
by kingliveson
Jeremy Bernstein wrote:To summarize

Code: Select all

                     bestmove     eval
Critter 0.9          Bb5          +1.68
HIARCS 13.2          Bb5          +2.31
Houdini 1.0          Bb5          +0.82
IPPOLIT 0.08a        Bb5          +0.86
Komodo 1.3           Bb5          +1.35
Naum 4.1             Bb5          +0.02
Naum 4.2             Bb5          +0.06
RobboLito 0085g3     Bb5          +0.99
Rybka 3              Bb5           0.00
So what in the world are people talking about, actually? Only Rybka and Naum evaluate the position as a clear draw. The Ippos' eval is increasing with each ply. Same for Critter. HIARCS is kind of standing still around +2.2. This position seems not merely inconclusive, but wholly irrelevant, as far as I can tell. Can someone enlighten me?
No idea!

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 3:53 pm
by Jeremy Bernstein
My post on Rybkaforum, linking to this thread, seems to have been deleted. Not really sure why...

Anyway, if anyone has more insight into why anyone cares about this, thanks in advance for educating me.

Re: BBN vs R+Ps ending and Rybka derivatives

Posted: Thu Jan 27, 2011 4:10 pm
by kingliveson
Jeremy Bernstein wrote:My post on Rybkaforum, linking to this thread, seems to have been deleted. Not really sure why...
See this: http://www.open-chess.org/viewtopic.php ... e6fa#p1241