Here are the latest games in the match between Deep Blue and Garry Kasparov, now tied at 2-2.

Game Three: Kasparov secures a clear advantage by playing an opening not in Deep Blue's book. Somehow, though, it all slipped away into a drawn endgame.

White: Garry Kasparov

Black: Deep Blue

1 d3 e5 25 f5 Qxd1

2 Nf3 Nc6 26 Bxd1 Bh7

3 c4 Nf6 27 Nh3 Rfb8

4 a3 d6 28 Nf4 Bd8

5 Nc3 Be7 29 Nfd5 Nc6

6 g3 0-0 30 Bf4 Ne5

7 Bg2 Be6 31 Ba4 Nxd5

8 0-0 Qd7 32 Nxd5 a5

9 Ng5 Bf5 33 Bb5 Ra7

10 e4 Bg4 34 Kg2 g5

11 f3 Bh5 35 Bxe5+ dxe5

12 Nh3 Nd4 36 f6 Bg6

13 Nf2 h6 37 h4 gxh4

14 Be3 c5 38 Kh3 Kg8

15 b4 b6 39 Kxh4 Kh7

16 Rb1 Kh8 40 Kg4 Bc7

17 Rb2 a6 41 Nxc7 Rxc7

18 bxc5 bxc5 42 Rxa5 Rd8

19 Bh3 Qc7 43 Rf3 Kh8

20 Bg4 Bg6 44 Kh4 Kg8

21 f4 exf4 45 Ra3 Kh8

22 gxf4 Qa5 46 Ra6 Kh7

23 Bd2 Qxa3 47 Ra3 Kh8

24 Ra2 Qb3 48 Ra6 draw

Game Four: Kasparov escaped from a poor position with a pawn sacrifice. Blue's 24.b4 and 26.b5 was ghastly, but it still drew.

White: Deep Blue

Black: Garry Kasparov

1 e4 c6 29 Rd1 Kc7

2 d4 d6 30 Ka1 Qxe3

3 Nf3 Nf6 31 fxe3 Rf7

4 Nc3 Bg4 32 Rh3 Ref8

5 h3 Bh5 33 Nd4 Rf2

6 Bd3 e6 34 Rb1 Rg2

7 Qe2 d5 35 Nce2 Rxg4

8 Bg5 Be7 36 Nxe6 Nxe6

9 e5 Nfd7 37 Nd4 Nxd4

10 Bxe7 Qxe7 38 exd4 Rxd4

11 g4 Bg6 39 Rg1 Rc4

12 Bxg6 hxg6 40 Rxg6 Rxc2

13 h4 Na6 41 Rxg7+ Kb6

14 0-0-0 0-0-0 42 Rb3+ Kc5

15 Rdg1 Nc7 43 Rxa7 Rf1+

16 Kb1 f6 44 Rb1 Rff2

17 exf6 Qxf6 45 Rb4 Rc1+

18 Rg3 Rde8 46 Rb1 Rcc2

19 Re1 Rhf8 47 Rb4 Rc1+

20 Nd1 e5 48 Rb1 Rxb1+

21 dxe5 Qf4 49 Kxb1 Re2

22 a3 Ne6 50 Re7 Rh2

23 Nc3 Ndc5 51 Rh7 Kc4

24 b4 Nd7 52 Rc7 c5

25 Qd3 Qf7 53 e6 Rxh4

26 b5 Ndc5 54 e7 Re4

27 Qe3 Qf4 55 a4 Kb3

28 bxc6 bxc6 56 Kc1 draw

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