Author: Uri Blass
Date: 11:10:11 11/14/03
The trap was suggested by a poster in the israeli chess forum.
Kasparov could play 31...Rf6 and the question is if Fritz could avoid 32.Qxb7
[Event "?"]
[Site "?"]
[Date "?"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "*"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 g6 6. O-O Bg7 7. Nbd2 O-O 8.
Re1 Re8 9. d4
{
White last book move
}
9... Bd7 10. d5 Ne7 11. Bxd7 Nxd7 12. a4 h6 13. a5 a6 14. b4 f5 15. c4 Nf6
16. Bb2 Qd7 17. Rb1 g5 18. exf5 Qxf5 19. Nf1 Qh7 20. N3d2 Nf5 21. Ne4 Nxe4
22. Rxe4 h5 23. Qd3 Rf8 24. Rbe1 Rf7 25. R1e2 g4 26. Qb3 Raf8 27. c5 Qg6
28. cxd6 cxd6 29. b5 axb5 30. Qxb5 Bh6 31. Qb6 Rf6 32. Qxb7 Ne3 33. R4xe3
Bxe3 34. Nxe3 Qd3 35. Bxe5 Qxe2 36. Bxf6 Rxf6 37. Qc8+ Kg7
*
Note that yace does not fall into that trap and prefers 32.Qc7 but my Fritz
likes Qxb7 inspite of seeing nagative score for that move.
analysis on A1000
[D]5rk1/1p6/1Q1p1rqb/P2Ppn1p/4R1p1/8/1B2RPPP/5NK1 w - - 0 1
Analysis by Yace Paderborn:
32.Bxe5 dxe5 33.Qxb7
µ (-0.80) Depth: 1 00:00:00
32.Qxb7
+- (1.47) Depth: 1 00:00:00
32.Qxb7
+- (1.47) Depth: 1 00:00:00
32.Qxb7 Qf7
± (1.29) Depth: 2 00:00:00
32.Qxb7 Qf7
± (1.29) Depth: 2 00:00:00
32.Qxb7 R8f7 33.Qc8+ Kh7
± (1.40) Depth: 3 00:00:00
32.Qxb7 R8f7 33.Qc8+ Kh7
± (1.40) Depth: 3 00:00:00
32.Qxb7 R6f7 33.Qc6 Qf6
± (1.31) Depth: 4 00:00:00
32.Qxb7 R6f7 33.Qc6 Qf6
± (1.31) Depth: 4 00:00:00
32.Qxb7 Ng7 33.Rc4 Qd3 34.Rcc2
± (1.30) Depth: 5 00:00:00
32.Qxb7 Ng7 33.Rc4 Qd3 34.Rcc2
± (1.30) Depth: 5 00:00:00
32.Qxb7 R6f7 33.Qb5 Ne7 34.Ng3 Bg5
± (1.29) Depth: 6/15 00:00:00 69kN
32.Qxb7 R6f7 33.Qb5 Ne7 34.Ng3 Bg5
± (1.29) Depth: 6/16 00:00:00 102kN
32.Qxb7 Qf7 33.Qxf7+ R6xf7 34.Rb4 Ne7 35.Rb6 Nxd5 36.Rxd6
± (1.04) Depth: 7/16 00:00:01 242kN
32.Qxb7 Qf7 33.Qxf7+ R6xf7 34.Rb4 Ne7 35.Rb6 Nxd5 36.Rxd6
± (1.04) Depth: 7/20 00:00:01 354kN
32.Qxb7 Qf7 33.Qxf7+ R6xf7 34.Rb4 Ra8 35.Rb5 Bg5 36.Rc2 Raf8
± (1.04) Depth: 8/20 00:00:02 700kN
32.Qxb7 Qf7 33.Qxf7+ R6xf7 34.Rb4 Ra8 35.Rb5 Bg5 36.Rc2 Raf8
± (1.04) Depth: 8/26 00:00:04 1045kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Re1 R6f7 36.Qc6 Rxf2
± (1.00) Depth: 9/26 00:00:08 2493kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Re1 R6f7 36.Qc6 Rxf2
± (1.00) Depth: 9/26 00:00:10 3250kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Re1 Qd2 36.Bxe5 Qxe1+ 37.Nf1
² (0.60) Depth: 10/27 00:00:13 4440kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Qe1+ 37.Nf1 Rxf6
38.Qc8+ Kh7
² (0.45) Depth: 10/30 00:00:19 6204kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Qe1+ 37.Nf1 Rxf6
38.Qc8+ Kh7
² (0.45) Depth: 10/30 00:00:31 9566kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.Qd7+ Kg6 39.Qe8+ Kg5 40.Qg8+ Kh4
² (0.30) Depth: 11/39 00:00:49 15759kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.Qd7+ Kg6 39.Qe8+ Kg5 40.Qg8+ Kh4
² (0.30) Depth: 11/39 00:01:29 28821kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.h3 Rxf2 39.Qb7+ Kg6 40.Nxg4
= (-0.10) Depth: 12/39 00:02:05 41785kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.Qc7+ Kh6 39.Qc2 Qe1+ 40.Nf1 Qxa5
³ (-0.52) Depth: 12/41 00:03:02 60532kN
32.Qc7 Qf7 33.Qxf7+ R6xf7
³ (-0.51) Depth: 12/43 00:12:41 225354kN
32.Qc7 Qf7 33.Qxf7+ R6xf7 34.Rc4 Ne7 35.Ng3 Nxd5 36.Nxh5 Nf4 37.Nxf4 Bxf4 38.Ba3
Rd8 39.Rec2
= (-0.14) Depth: 12/43 00:16:33 282219kN
(Blass, Tel-Aviv 14.11.2003)
5rk1/1p6/1Q1p1rqb/P2Ppn1p/4R1p1/8/1B2RPPP/5NK1 w - - 0 1
Analysis by Fritz 8:
32.Qxb7 h4 33.Qb4 g3 34.Rg4 gxf2+ 35.Rxf2 Bg5
± (1.19) Depth: 7/22 00:00:00 67kN
32.Qxb7 Qf7 33.Qxf7+ Kxf7 34.Rc2 Ra8 35.Ra4 h4 36.a6
± (0.94) Depth: 8/25 00:00:01 396kN
32.Qxb7 Qf7 33.Qxf7+ Kxf7 34.Ng3 Nxg3 35.hxg3 Ra8 36.Ra4 Ra6 37.Rc2
± (0.91) Depth: 9/28 00:00:02 736kN
32.Qxb7 Qf7 33.Qxf7+ Kxf7 34.Ng3 Nxg3 35.hxg3 Ra8 36.Ra4 Ra6 37.Rc2 Ke8
± (0.88) Depth: 10/32 00:00:06 2039kN
32.Qxb7--
² (0.59) Depth: 11/30 00:00:15 5636kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 dxe5 36.Qb2 h4 37.Re1
² (0.41) Depth: 11/36 00:00:25 9478kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 dxe5 36.Qb2 Qd4 37.Qxd4 exd4
38.Nc4
² (0.50) Depth: 12/36 00:01:04 25898kN
32.Qxb7--
= (0.22) Depth: 13/32 00:01:35 39408kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.Qc7+ Kh6 39.Qc1 Qxf2+ 40.Kh1
= (-0.19) Depth: 13/41 00:02:10 54477kN
32.Qxb7 Ne3 33.R4xe3 Bxe3 34.Nxe3 Qd3 35.Bxe5 Qxe2 36.Bxf6 Rxf6 37.Qc8+ Kg7
38.Qc7+ Kh6 39.Qc1 Qxf2+ 40.Kh1
= (-0.19) Depth: 14/37 00:10:12 259851kN
(Blass, Tel-Aviv 14.11.2003)
This page took 0.01 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.