(C)omputer (C)heating Accusations

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

Sean Evans
Posts: 1777
Joined: Thu Jun 05, 2008 10:58 pm
Location: Canada

(C)omputer (C)heating Accusations

Post by Sean Evans »

http://www.chessbase.com/newsdetail.asp?newsid=5257

Mamedyarov,S (2724) - Kurnosov,I (2602) [D70]
Aeroflot Open Moscow RUS (6), 22.02.2009
1.d4 Nf6 2.c4 g6 3.f3 d5 4.cxd5 Nxd5 5.e4 Nb6 6.Nc3 Bg7 7.Be3 0-0 8.Qd2 Nc6 9.0-0-0 f5 10.h4 fxe4 11.h5 gxh5 12.d5 Ne5 13.Bh6 Nec4 14.Qg5 Rf7 15.Bxc4 Nxc4 16.Rd4

[d] r1bq2k1/ppp1prbp/7B/3P2Qp/2nRp3/2N2P2/PP4P1/2K3NR b - - 0 16

16...Qd6N 17.Bxg7 Rxg7 18.Qxh5 Qf4+ 19.Kb1 Bf5 20.fxe4 Bg4 21.Nge2 Qd2 0-1.

After the game Mamedyarov played through the game with a computer, using Rybka as an analysis engine. He discovered a close correlation between the moves of the computer and those of his opponent. Furthermore Kurnosov, who is rated over 100 points below Mamedyarov, apparently kept withdrawn from the board after each move.
Sean Evans
Posts: 1777
Joined: Thu Jun 05, 2008 10:58 pm
Location: Canada

Re: (C)omputer (C)heating Accusations

Post by Sean Evans »

[d] r1bq2k1/ppp1prbp/7B/3P2Qp/2nRp3/2N2P2/PP4P1/2K3NR b - - 0 1

My Shredder 11 program comes up with the following analysis:

16...Nxb2 17.Nge2 Nd3+ 18.Kc2 Nf2 19.Rf1 Qd6 20.Bxg7 Rxg7 21.Qxh5 Rxg2 22.Qe8+ Kg7 23.fxe4 Rb8 24.Kc1 a5 25.Kd2 Ra8 26.Kc1
-/+ (-0.98) Depth: 16/48 00:02:49 65256kN
(Sean, 02.03.2009)
User avatar
michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 8:30 pm
Location: Chicago, Illinois, USA

Re: (C)omputer (C)heating Accusations

Post by michiguel »

Sean Evans wrote:http://www.chessbase.com/newsdetail.asp?newsid=5257

Mamedyarov,S (2724) - Kurnosov,I (2602) [D70]
Aeroflot Open Moscow RUS (6), 22.02.2009
1.d4 Nf6 2.c4 g6 3.f3 d5 4.cxd5 Nxd5 5.e4 Nb6 6.Nc3 Bg7 7.Be3 0-0 8.Qd2 Nc6 9.0-0-0 f5 10.h4 fxe4 11.h5 gxh5 12.d5 Ne5 13.Bh6 Nec4 14.Qg5 Rf7 15.Bxc4 Nxc4 16.Rd4

[d] r1bq2k1/ppp1prbp/7B/3P2Qp/2nRp3/2N2P2/PP4P1/2K3NR b - - 0 16

16...Qd6N 17.Bxg7 Rxg7 18.Qxh5 Qf4+ 19.Kb1 Bf5 20.fxe4 Bg4 21.Nge2 Qd2 0-1.

After the game Mamedyarov played through the game with a computer, using Rybka as an analysis engine. He discovered a close correlation between the moves of the computer and those of his opponent. Furthermore Kurnosov, who is rated over 100 points below Mamedyarov, apparently kept withdrawn from the board after each move.
http://www.talkchess.com/forum/viewtopi ... t=kurnosov

Miguel
User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: (C)omputer (C)heating Accusations

Post by AdminX »

The other side of the story ...

"Dear colleagues and chess fans! In response to the letter circulated in the press by Shakhriyar Mamedyarov, I have to clarify the situation. I suggest you take a look at the game Mamedyarov-Kurnosov from round six of the Aeroflot Open, together with my brief comments."

http://letters.chessdom.com/igor-kurnosov
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers