Author: Robert Hyatt
Date: 12:06:47 04/15/02
Go up one level in this thread
On April 15, 2002 at 14:30:58, Mark Young wrote: >> >> >>Show me a computer that _really_ attacks. I am not talking about just moving >>pieces near the opponent's king, or sacrificing a piece for two pawns to get a >>couple of open files. I mean a program that really knows how to attack, >>period. With bishops on opposite corner from the king, clearing the diagonals, >>etc. >> >>There just aren't any... > >Yes there is Bob....I don't know how you pull this stuff out of the air. > >Computers can and do attack, they use many "human" ideas in attacking. Computers basically attack by serendipity. Plus some simple knowledge about open and half-open files around the opponent's king. But that is just a small surface scratch in a large body of situations that are faced over the board. Just because a computer attacks in one game out of a hundred, does not mean "that computer knows how to attack." _every_ computer has looked brilliant here and there againg GM-level players. But those random samples are not very common. > >Here is one recent example. > >Rebel Century 4.0 - GM Loek van Wely > > >1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 Be7 7. Bb5 Ncb8! > >Black can play a prophylactic move in a closed position. > >8. 0-0 b6 9. Qe2 a5 10. Be3 Ba6 > >Janosevic - Suetin, Titovo 1966 and Nicevski - Sofrevski, Skopje 1967 continued >with the immediate 10... 0-0. > >11. a4 c6 12. Bxa6 Nxa6 13. Rfc1 > > > >White takes the initiative on the queenside. > >13...0-0 14. c4 dxc4 15. Rxc4 Ndb8 16. Nbd2 Nb4 17. Ne4 N8a6 18. Nfd2 Nc7 19. >Qg4! > >The computer changes its strategy ! It plans an attack on the kingside. > >19...Kh8 20. Ra3 N4d5! > >The blockader in the centre assist in the defence of the kingside. > >21. Bg5 f6 22. exf6 gxf6 23. Rh3! > > > >23...Qe8 > >Avoids 23...fxg5?? 24. Qh5. > >24. Qh4 Rf7 25. Bh6 > >White has a slight advantage, but his bishop allows little progress. Black gets >time for a counter-attack. > >25...b5 26. axb5 cxb5 27. Rc1 a4 28. Rg3!? > >Rebel keeps the pressure on the kingside. Better use of the mobility of white's >pieces makes 28. Nc5! > >28...a3?! > >More solid is 28...Rc8 29. Nf3 Bf8. > >29. bxa3 Rxa3 30. Nf3!? > >The expected move is 30. Nb3, but Rebel further increases the pressure. > >30...b4? > >Correct is 30...Bf8! followed by exchange. > >31. Qh5! > > > >31...Rxf3!? > >Desperation. Black has lost a pawn after 31...Bf8 32. Ne5! Re7 33. Nxf6! Nxf6 >34. Qxe8 Ncxe8 (34...Rxe8 35. Nf7 mate) 35. Bxf8. > >A great variation is 31...Ra7 32. Ne5! fxe5 33. Ng5! Bxg5 34. Qxg5 (Threatens >Bg7+) 34...Nb5. The opening of the c-file allows the combination 35. Qg8+! >(Stronger than 35. Qxe5+ Rf6) 35...Qxg8 36. Rxg8+ Kxg8 37. Rc8+ Rf8 38. Rxf8 >mate ! > >32. gxf3! Bf8 33. Kh1! Re7 34. Rcg1 1-0 > >Rebel played incredibly strong. yes it did...
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