YUSUPOV FACES REBEL 8: THE HUMAN BRAIN AGAINST THE COMPUTER

After a time of not publishing in English, I wanted to present today an interesting game between Grand Master Artur Yusupov and the software Rebel 8. Thus, the game was selected from the book Attack and Defense (Mark Dvoretsky and Artur Yusupov, Batsford, 1998). In addition, I present the comments of Grand Master Artur Yusupov in quotation marks, but, even more, I also present my own comments. It's a very interesting game, since the GM Yusupov explains to us, as he thinks, but also how the software thinks. Recently, GM Miguel Illescas published an article in the magazine "Peón de Rey", on how to analyze with a computer program, an article that I recommend reading, since, for an amateur chess player, the computer is the principal tool to carry out the Analysis of games. 

http://genioslatinos.com/inteligencia-artificial-aprende-a-jugar-ajedrez-en-solo-72-horas/

Send dear reader your comments in relation to the Blog, which has plus of thirty publications. You can also to send your games, with your own comments to post on the Blog, or a game that you find interesting. You can to write using the email that appears on the Blog. Also, I invite you to follow my Facebook page and my count on Twitter. Now, let's to see the game, clarifying before, that I use for my analysis, the Rybka 4: 

1.Cf3 Cf6 2.d4 e6 3.e3 c5 4.Ad3 b6 5.b3 Ae7 6.Ab2 According to the computer 6. cxd5 was another possibility 6...0–0 7.0–0 d5 8.Ce5 

Computer suggests 8. Nbd2 8...Cfd7 9.f4 Now 9. Qh5 9...Cxe5 As well ...Ba6 10.dxe5 Aa6 11.c4 Computer says 11. Bxa6 11...Cc6 12.a3 dxc4 13.bxc4 f5 14.exf6 It's possible 14. Nc3 14...Axf6 15.Cc3 Ca5 16.Dc2 Computer says 16. Qe2, but Grandmaster Yusupov seems that intutively point to kignside with your bishops. Grandmaster Yusupov says: "My most recent example of a misplayed attack occurred in a demostration match against a computer program. In this position Black took a decision typical of a computer. 

16...Cxc4 “After the - human - continuation 16...h6 17.Tad1 De7 18.Cb5 Axb2 19.Dxb2 White would gain a clear plus, since Black's castled position would be weakend and his knight would be out of play on a5. Now, however, White has to calculate some variations that would prove a difficult task for me aven with a normal time-limit.” 17.Axh7+ 

Another posibility is 17. Rad1 17...Rh8 18.Tad1 My computer does not mention the move 18. Rf3! In addition reply with 18 ...Nxe3 In contrast, Rybka program mentions 18. Rfd1. Yusupov Says “This natural move cost me ten precious minutes and turned out to be an outright error. The inmediate 18.Tf3! was better. I was afraid of 18...Dd2 for no good reason, since the simple 19.Dxd2 Cxd2 20.Th3 is adequate.; 18.Tf3 If instead 18...Cxb2 19.Th3 Ah4 Alternatively 19 ...Cc4 20. De2 20.Ae4 Ad3 21.Dxb2 Axe4 22.Cxe4 Rg8 23.De5 White has a fierce attack.” 

18...De7? “The correct reply was 18...Cxe3! If 19.Txd8 then 19...Taxd8 20.Dg6 Ad3 21.Dxd3 Txd3 22.Axd3 Ad4!?; 18...Cxe3 19.Txd8 While 19...Cxc2! 20.Txa8 Txa8 21.Axc2 Ad4+ 22.Tf2 Td8 is an aven stronger line. I had of course overlooked the last move of this variation.” 

19.Tf3 Cxb2 20.Th3 Cxd1 "If a computer sees the chance to devour something without detecting a concrete reason not to, it will do so without fail. A human player knows that glutonny leads to no good, but the concrete proof of this principle lies beyond the computer's horizon. However, being in time-trouble, White failed to find the win and settled for a repetition of moves. The correct line was discovered the following day by some chess enthusiasts who were interested in analysing White's attack. 21. Ag6 +" 

21 ...Rg8 22.Ah7+ "I don't know which of these mates is prettier, but it's a pity I didn't manage to end the game fittingly with one or the other. Instead, there followed:" "22.Dxd1 Ag5 23.Cd5 Dd8 24.Ah7+ Rh8 (24 . . .Rf7 25. Dh5+) by 25.fxg5 Dxg5 26.Ag6+ (Next Diagram) Rg8 27.Ce7+ Dxe7 28.Th8+ Rxh8 29.Dh5+ Rg8 30.Dh7 ++ "

"22.Dxd1 Ag5 23.Cd5 Dd8 24.Ah7+ Rh8 25.fxg5 Tf1+ 26.Dxf1 Axf1 (Next Diagram) 27.Af5+ Rg8 28.Axe6+ Rf8 29.Th8 ++" 

However continued 22...Rh8 23.Ag6+ Rg8 and the chess game finished in draw. I hope the game has seemed interesting to you. See you next week.