Grandmasters drub computers in AEGON<\/p>\n
By Kristianus Liem<\/p>\n
JAKARTA (JP): The 12th AEGON Human versus Computer tournament
\nin The Hague this April was another fine rendition of the annual
\nevent.<\/p>\n
Fifty of the world's very best computers were pitted against
\nan assortment of human opponents, ranging from club players to
\nthis year's 12 Grandmasters.<\/p>\n
The modified Swiss system event, played at a time control of
\n90 minutes plus 30 seconds per move for one game, produces 300
\ngames in its six rounds.<\/p>\n
The human side was upgraded this year by beefing up the number
\nof GMs. The 11th AEGON tournament had nine GMs and the humans
\nwere badly beaten 162.5-137.5. This year, the 12 GMs responded by
\nscoring well over 70 percent. Still, that wasn't quite enough and
\nthe computers won the overall competition 151.5-148.5.<\/p>\n
Israeli GM Yona Kosashvili was the winner of the event held
\nApril 16-24.<\/p>\n
Yona duplicated GM Yasser Seirawan's 6-0 score of last year.
\nHe was modest in victory. "I'm a medical student serving in the
\nIsraeli army and for the past year I have been quite far from
\nchess."<\/p>\n
The top 10 final standings were: 1. GM Yona Kosashvili 6 MP;
\n2-3. GM Yasser Seirawan, IM Johan van Mill 5.5 MP; 4-10. Chessmaster
\n5000, Kallisto, Rebel, GM Lembit Oll, GM John van der Wiel, GM Ye
\nRongguang, IM Gert Jan de Boer 4.5 MP<\/p>\n
Yona had a tough test in round three when he faced M-Chess Pro
\n6.0, one of the world's strongest programs. He made a very astute
\nopening choice. Here's the game.<\/p>\n
White: GM Yona Kosashvili<\/p>\n
Black: M-Chess Pro 6.0<\/p>\n
English Opening<\/p>\n
1.c4 Nf6 2.Nc3 c5 3.e4<\/p>\n
Perhaps not the best move in the position, but, by achieving
\nthe Botvinnik Pawn Triangle system, Yona shifts the game into a
\nposition where the strategic ideas are extremely flexible, thus
\nnegating a great deal of the computer's calculation ability.<\/p>\n
3...d6 4.g3 Nc6 5.Bg2 g6 6.d3 Bg7 7.h3!?<\/p>\n
Again, not the best move in the position, but a useful one
\nwhich will likely get the computer out of its book and for that
\nreason it is well played.<\/p>\n
7...Bd7?! 8.Nge2 Qc8?!<\/p>\n
Black prevents White from castling short for a few moves, but
\nthis is not an important strategic objective. It is more
\nimportant to make the Knight's tour ...Nf6-e8-c7-e6-d4 as well
\nas ...Ra8-b8, ...a7-a6 and ...b7-b5 with play in the center and
\non the queen-side.<\/p>\n
9.Rb1 0-0 10.a3 Nd4 11.Be3 e5 12.b4 b6 13.Qc1 Rb8 14.Bg5 Re8?
\nMisplacing the Rook. Again, Black should play 14...Nxe2 15.Nxe2!?
\nb5 angling for play on the queen-side.<\/p>\n
15.b5! Ra8?<\/p>\n
The computer doesn't understand that the resulting blocked
\ncentral pawn position will be in White's favor. Best was
\n15...Nxe2 16.Kxe2 a6 opening up the a-file.<\/p>\n
16.Nxd4 cxd4 17.Bxf6 Bxf6 18.Nd5 Bg7 19.h4! Be6<\/p>\n
See diagram.<\/p>\n
20.Nb4!<\/p>\n
Beautiful play by Yona. White keeps his Knight and is playing
\nto make the g7-Bishop bad. Computers love Bishops and M-Chess pro
\nundoubtedly evaluated the position in its favor. White has a
\nlarge strategic advantage.<\/p>\n
20...Qd7 21.h5 Rf8 22.Rb2 h6 23.Qd1 Rac8 24.Bf3 Kh7 25.a4 Kh8
\n26.Ra2 Qc7<\/p>\n
At last, White gets the opportunity to trade light-squared
\nBishops and assert his strategic mastery of the position.<\/p>\n
27.hxg6! fxg6 28.Bg4! Bxg4 29.Qxg4 Qf7 30.Nd5 Kh7 31.f4! exf4
\n32.gxf4 Rce8 33.Rg2 h5 34.Qh3 Bh6 35.Rf2 Qf5 36.Kf1!<\/p>\n
Simple chess. White is eager to embrace the ending.<\/p>\n
36...Qxh3+ 37.Rxh3 Rf7 38.Rhf3 Ref8 39.Kg2 g5?<\/p>\n
This make White's task easy, but the game is already lost for
\nBlack.<\/p>\n
40.fxg5 Rxf3 41.Rxf3 Rxf3 42.Kxf3 Bxg5 43.Nb4 Bd8 44.Nc6 Bc7
\n45.Nxa7 Kg6 46.Nc6 Kf6 47.Nxd4 Kg6 48.Ne6 Bb8 49.Nf4+ Kg5 50.Nd5
\nBa7 51.Kg3 Kh6 52.Kh4 Kg7<\/p>\n
Black resigned here. A model game of how to play against a
\ncomputer! 1-0<\/p>",
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