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Stockfish and forks

Posted: Tue Sep 14, 2021 9:43 pm
by Chess_Dragon
G/90"+1" 1Gh Sy.6, DOTS2 openings rev. each
R7 2700X 8ths x 2

Code: Select all

RR                              Elo     +/-   Games   Points   Score    Draw 
   1 SugaR_AI_2.40-NNUEonly *    21      28     200    106.0   53.0%   66.0% 
   2 Stockfish_21091218          19      28     200    105.5   52.8%   66.5% 
   3 ShashChess18.1-TCP *       -40      30     200     88.5   44.3%   60.5% 

300 games. * with the net prior to Stockfish's current.
TCP = all 3 settings checked, sorry it did not seem to work out here.

     Su    Sf    SC
Su  ----  49.0  57.0
Sf  51.0  ----  54.5
SC  43.0  45.5  ----
Highlights from the .pgn -click the links for diagram:

game #292, Round 146, SugaR 1-0 ShashChess , a 'Danish' vs Sicilian, the shortest win.
After 15...Bc6?? {Swordfish 15...Nf4! =} 16.Rxd5!! {exchange sac.} Bxd5 16.Nf6+!! {N sac.} gxf6 17.Nf5!! {N offer} white has a winning attack.

game #291, Round 146, ShashChess 0-1 SugaR , colors reversed: black eventually won with the gambit matterial.
_ _ _

game #62, Round 31, SugaR 1-0 Stockfish, Lolli Gambit, KGA, white sacs. a B and a N in the book.
After 5.Nd5 Nxd5?? +- {Swordfish 5...Nbc6! =} Stockfish said it was winning but its lost*: 6.Qxd5+ Qe6 7.Qg5 Qxh6 {black 3 minors up!?} 8.Qd8+ Bf8 9.Qe8! Qg7 10.Rf3! h6 11.Raf1! Kh7 12.Rxf8. *Apparently a flaw in Stockfish, SugaR's and Swordfish's evals. were correct.

game #61, Round 31, Stockfish 0-1 SugaR, colors reversed Stockfish could not find compensation for the strange opening.
_ _ _

game #283, Round 142, Stockfish 1-0 SugaR , Bishop Game with ...f5.
After 8...c5 black has made an unsound N sac., refutted by a Q sac.: 9.Qx(N)e5 Qxe5 10.Bxg6+ Kd7 11.Nf7 Qf6 12.Nxh8 and white had more than enough for its Q and went on to win.

game #282, Round 142, SugaR 1/2=1/2 Stockfish , colors rev. SugaR was only able to draw.

Games: https://www.mediafire.com/file/a1xk5grj ... u.pgn/file

Re: Stockfish and forks

Posted: Wed Sep 15, 2021 12:34 pm
by dorsz
Chess_Dragon wrote:
Tue Sep 14, 2021 9:43 pm

Highlights from the .pgn -click the links for diagram:

I don't see any links besides download link with PGN.


(For your information: I will release soon DOTS3 with 100 openings)

Re: Stockfish and forks

Posted: Wed Sep 15, 2021 2:03 pm
by Chess_Dragon
"
Chess_Dragon wrote: ↑Tue Sep 14, 2021 1:43 pm

Highlights from the .pgn -click the links for diagram:

"

I don't see any links besides download link with PGN.
My diagram idea did not work, I forgot to remove " -click ...", sorry.

Your DOTS have been great!! Very ingenious and effective!