Kasparov draws latest game with computer

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The Independent Online

Chess Correspondent

Garry Kasparov drew the fourth game of his chess match against the IBM super-computer Deep Blue, leaving the scores level at 2-2 with two games left to play.

After losing the first game of the match, apparently through taking his opponent too lightly, Kasparov has adopted a more cautious strategy, steering for placid positions in which the machine's huge calculating ability will have little to focus on. As the fourth game showed, however, a billion calculations a second can come up with some surprising results even in apparently quiet positions.

After 30 moves, Kasparov seemed to have a small but secure advantage, with two black pawns weakened and prone to attack. Deep Blue solved its problems with a neat sequence beginning at move 33. Since the first game, Kasparov has not looked in danger of losing again, but his attempts to win have generally led to frustration. Before the match began, he said that he expected to have identified the machine's weaknesses within the first two games. Recent results, however, suggest that he is not quite there yet. Here are the full moves of game four.

White: Garry Kasparov

Black: Deep Blue

1.Nf3 d5 2.d4 c6

3.c4 e6 4.Nbd2 Nf6

5.e3 Nbd7 6.Bd3 Bd6

7.e4 dxe4 8.Nxe4 Nxe4

9.Bxe4 0-0 10.0-0 h6

11.Bc2 e5 12.Re1 exd4

13.Qxd4 Bc5 14.Qc3 a5

15.a3 Nf6 16.Be3 Bxe3

17.Rxe3 Bg4 18.Ne5 Re8

19.Rae1 Be6 20.f4 Qc8

21.h3 b5 22.f5 Bxc4

23.Nxc4 bxc4 24.Rxe8+Nxe8

25.Re4 Nf6 26.Rxc4 Nd5

27.Qe5 Qd7 28.Rg4 f6

29.Qd4 Kh7 30.Re4 Rd8

31.Kh1 Qc7 32.Qf2 Qb8

33.Ba4 c5 34.Bc6 c4

35.Rxc4 Nb4 36.Bf3 Nd3

37.Qh4 Qxb2 38.Qg3 Qxa3

39.Rc7 Qf8 40.Ra7 Ne

41.Rxa5 Qf7 42.Rxe5 fxe5

43.Qxe5 Re8 44.Qf4 Qf6

45.Bh5 Rf8 46.Bg6+ Kh8

47.Qc7 Qd4 48.Kh2 Ra8

49.Bh5 Qf6 50.Bg6 Rg8

Draw agreed.