A simple position no chess engine can play correctly?

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biscuit1953
Posts: 29
Joined: Sun Apr 29, 2012 5:54 pm

A simple position no chess engine can play correctly?

Post by biscuit1953 » Sun Apr 28, 2013 1:15 pm

8/8/6k1/2p1p3/2P1P1K1/3N4/8/b7 w - - 0 1

I am looking at some old files again and have no idea if this has been posted or not or even if it is correct. Here is what the note says.

"1 Nxc5? This move throws away the win! "White's c-pawn cannot be advanced to the queening square without the help of the king, but this allows Black to counter by attacking the e-pawn" - Pachman.

"White to play took the pawn, <1.Nxc5? Kf6>, after which White had no forced win and the game was ultimately drawn. But had Pachman postponed the pleasure of capture for some 14 moves, he would have had a stock win: 1.Ne1 Bc3 2.Nf3 Bd4 3.Nh4+ Kf6 4.Kh5 Bf2 5.Nf5 Bg1 6.Nh6 Bd4 7.Ng4+ Ke6 8.Kg6 Bg1 9.Nh6 Bd4 10.Nf7 Be3 11.Ng5+ Kd6 12.Kf5 Bd4 13.Nf7+ Ke7 14.Nxe5 ...."

ernest
Posts: 247
Joined: Thu Sep 02, 2010 10:33 am

Re: A simple position no chess engine can play correctly?

Post by ernest » Wed May 01, 2013 2:53 am

That position is NOT winning.

See for instance http://rybkaforum.net/cgi-bin/rybkaforu ... #pid138109

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