Author: John Merlino
Date: 13:08:10 09/16/02
Go up one level in this thread
On September 15, 2002 at 17:10:00, Jim Monaghan wrote:
>Hi,
>
>Here's an interesting game played in Leo's AmCom tournament. Although Gandalf
>won the match 3-1, Zarkov had the satisfaction of taking the last game in pretty
>fashion with a positional queen sacrifice where Zarkov's pieces overcame
>Gandalf's lady.
>
>
>[Event "AmCom_2"]
>[Site "DUAL-P3-1266"]
>[Date "2002.09.05"]
>[Round "1.4"]
>[White "Gandalf 5.1"]
>[Black "Zarkov 4.5y"]
>[Result "0-1"]
>
>1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 dxc4 6. Qxc4
>O-O 7. e4 a6 8. e5 b5 9. Qb3 Nfd7 10. Be3 c5 11. dxc5 Nxe5
>12. Nxe5 Bxe5 13. Rd1 Qa5 14. Bd2 Be6 15. Nd5 Qd8 16. Bh6
>Nc6 17. Nf6+ Bxf6 18. Rxd8 Rfxd8 19. Qa3 b4 20. Qa4 Bd5
>21. Qc2 Nd4 22. Qc1 Rac8 23. Be3 Rc6 24. Rg1 Rdc8 25. Qd1
>Rxc5 26. Bxa6 Nc2+ 27. Ke2 Nxe3 28. Kxe3 R8c6 29. Bd3 Re6+
>30. Kf4 Be5+ 31. Kg4 Rf6 32. Kh4 g5+ 33. Kh5 Kg7 34. f4
>Rxf4 35. Qg4 Rxg4 36. Kxg4 Bxa2 37. Ra1 Be6+ 38. Kf3 Bxb2
>39. Rb1 {White resigns} 0-1
>
>There are two interesting decision points. The first one is here:
>
>[D] rn1q1rk1/4pp1p/p3b1pB/1pPNb3/8/1Q6/PP3PPP/3RKB1R b K -
Chessmaster 9000, on a relatively humble P3-600, plays Nc6 after 39 seconds:
Time Depth Score Positions Moves
0:00 1/3 0.34 2388 1...Qa5+ 2.Bd2 Qd8 3.Bg5
0:00 1/4 0.38 6275 1...Qa5+ 2.Rd2 Re8 3.Be2 Nd7 4.c6
0:00 1/4 0.28 10133 1...Nc6 2.Bxf8 Kxf8 3.Be2 Nd4
0:00 1/5 0.28 21273 1...Nc6 2.Bxf8 Kxf8 3.Be2 Nd4
0:00 1/5 0.07 29560 1...Qa5+ 2.Rd2 Re8 3.Be2 Nc6 4.O-O
Nd4
0:01 1/6 0.08 67392 1...Qa5+ 2.Rd2 Nc6 3.Be2 Rfd8 4.O-O
Nd4
0:03 1/7 0.00 188989 1...Qa5+ 2.Bd2 Qd8 3.Bh6
0:08 1/8 0.05 476962 1...Qa5+ 2.Rd2 Nc6 3.Be2 Bd4 4.O-O
Rad8 5.Bf3 Bxc5 6.Rfd1
0:25 1/9 0.00 1620165 1...Qa5+ 2.Bd2 Qd8 3.Bh6
0:39 1/9 -0.19 2502613 1...Nc6 2.Bxf8 Qa5+ 3.Rd2 Kxf8
4.Qa3 Qxa3 5.bxa3 Rd8 6.f4 Bxd5
7.fxe5 Nxe5
1:36 1/10 -0.40 6292111 1...Nc6 2.Nf6+ Bxf6 3.Rxd8 Bxb3
4.Rxf8+ Rxf8 5.axb3 Rd8 6.Be2 Bxb2
7.Bd2 Bd4
4:02 2/11 -0.61 16270904 1...Nc6 2.Be3 Bxd5 3.Qxd5 Qa5+
4.Bd2 Qc7 5.Be2 Rad8 6.Qe4 Bxb2
7.O-O Nd4
>The next position is even more intriguing.
>
>[D] r2R1rk1/4pp1p/p1n1bbpB/1pP5/8/1Q6/PP3PPP/4KB1R b K -
CM9000 looks at Rfxd8 (and even Raxd8) for quite some time, but prefers Bxf3
with a strong eval:
Time Depth Score Positions Moves
0:00 1/3 -0.34 1478 1...Rfxd8 2.Qf3 Nd4
0:00 1/4 -0.39 4811 1...Rfxd8 2.Qa3 g5 3.f4
0:00 1/4 -0.43 6830 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.Bc1 e6
0:00 1/5 -0.27 10152 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.Bc1 e6 5.Be2
0:00 1/5 -0.28 15739 1...Rfxd8 2.Qa3 Bf5 3.Bf4 e5
0:00 1/6 -0.39 29860 1...Rfxd8 2.Qa3 Bf5 3.b4 Rd4 4.Bxb5
Nxb4
0:00 1/6 -0.47 36121 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.g3 Rd5 5.Be3 Bxb2
0:01 1/7 -0.38 60742 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.Be2 Bxb2 5.O-O Nd4
0:02 1/8 -0.56 127521 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.Be2 Bxb2 5.Be3 Nd4 6.Bxd4 Bxd4
0:04 1/9 -0.53 309614 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.Be2 Bxb2 5.O-O Nd4 6.Bd1 Bc3
7.Bf4
0:10 1/10 -0.85 810145 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.g3 Bxb2 5.Bd2 Rd5 6.Be3 Bd4 7.Bxd4
Rxd4
0:26 2/11 -1.07 2088668 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.g3 Bxb2 5.Bg2 Nd4 6.O-O Nxb3
7.Rb1 Bc1 8.Rxb3 Rd1+ 9.Bf1 Bxh6
1:08 3/12 -1.07 5698371 1...Bxb3 2.Rxf8+ Rxf8 3.axb3 Rd8
4.g3 Bxb2 5.Bg2 Nd4 6.O-O Nxb3
7.Rb1 Bc1 8.Rxb3 Rd1+ 9.Bf1 Bxh6
5:19 4/13 -1.04 27559404 1...Bxb3 2.Rxf8+ Rxf8 3.Bxf8 Bxa2
4.Bh6 Bxb2 5.Be2 Bd5 6.O-O e5 7.Bd2
Bd4 8.Rc1 Be4
jm
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