Author: Kurt Utzinger
Date: 10:59:37 04/17/04
Go up one level in this thread
On April 17, 2004 at 12:49:13, Ed Schröder wrote:
>On April 17, 2004 at 04:21:08, Kurt Utzinger wrote:
>
>>[D]8/7R/2rk1p2/4bR2/1p1pK3/6P1/1P5P/8 w - - 0 49
>
>>Hiarcs9 vs List 5.13 (Position after 48...Kd6)
>>White has of course a won position: the question however
>>is which program finds the easiest way with 49.Rxe5
>>and transposition to a won pawn end game?
>
>49.Rxe5 is tense, it requires a lot of chess knowledge to play. For instance put
>the pawns b2 and b4 on a2 and a4 and 49.Rxe5 is a draw. Good test position for
>programs that find 49.Rxe5
>
>Ed
>
>=======
Hi Ed
You are right I think: 49.Rxe5 requires a lot of chess
knowledge, but it's possible to implement this knowledge.
Fritz 8.0.0.26 needs 0 seconds for this move:
New game
8/7R/2rk1p2/4bR2/1p1pK3/6P1/1P5P/8 w - - 0 1
Analysis by Fritz 8: (P4 1.8/32 MB hash)
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.b3 Kd7 53.g4 Ke6 54.g5 Kf7
+- (2.31) Depth: 7/16 00:00:00 42kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.b3 Kd7 53.g4 Ke6 54.g5 Kf7
+- (2.31) Depth: 8/16 00:00:00 70kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.b3 Kd7 53.g4 Ke6 54.g5 Kf7
+- (2.31) Depth: 9/18 00:00:00 171kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.b3 Kd7 53.g4 Ke6 54.h3 Kf6
+- (2.43) Depth: 10/25 00:00:00 397kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.b3 Kd7 53.g4 Ke6 54.h3
+- (2.43) Depth: 11/23 00:00:01 836kN
49.Rxe5!
+- (2.72) Depth: 12/25 00:00:03 1647kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.h4 Kd7 53.g4 Ke7 54.g5 b3 55.h5 Ke6
56.h6
+- (2.62) Depth: 13/25 00:00:07 4038kN
49.Rxe5!
+- (2.90) Depth: 14/35 00:00:16 9965kN
49.Rxe5!
+- (3.18) Depth: 14/35 00:00:16 10186kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.h4 Kd7 53.g4 Ke7 54.g5 Kf8 55.h5 Kg8
56.Kd3 Kf7 57.b3 Ke7
+- (3.34) Depth: 14/35 00:00:17 10637kN
49.Rxe5--
+- (3.06) Depth: 15/35 00:00:33 21640kN
49.Rxe5 fxe5 50.Rh6+
+- (3.06) Depth: 15/36 00:00:34 22532kN
49.Rxe5!
+- (3.34) Depth: 16/34 00:02:01 82801kN
49.Rxe5 fxe5 50.Rh6+ Kd7 51.Rxc6 Kxc6 52.h4 Kd6 53.g4 Ke6 54.g5 Kf7 55.h5 Ke7
56.Kd3 Kf7
+- (3.37) Depth: 16/34 00:02:05 84966kN
49.Rxe5--
+- (3.09) Depth: 17/32 00:04:29 186602kN, tb=1
49.Rxe5 fxe5 50.Rh6+
+- (3.09) Depth: 17/48 00:04:38 193261kN, tb=1
(Utzinger, MyTown 17.04.2004)
>
>>[Event "RK 2004 Ath 1.3/64 90m+30s"]
>>[Site "Zurich"]
>>[Date "2004.04.03"]
>>[Round "8.7"]
>>[White "Hiarcs 9"]
>>[Black "List 513"]
>>[Result "1-0"]
>>[ECO "D46"]
>>[PlyCount "111"]
>>
>>1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O
>>dxc4 9. Bxc4 b5 10. Be2 Bb7 11. Rd1 Qc7 12. e4 e5 13. g3 Rfe8 14. a3 a6 15.
>>dxe5 Nxe5 16. Bg5 Nxf3+ 17. Bxf3 {Both last book move} Qe7 18. Bg2 h6 19. Bxf6
>>Qxf6 20. f4 Qg6 21. Rd3 Rad8 22. Rad1 Bc7 23. Nd5 Rxd5 24. exd5 Bb6+ 25. Kh1
>>cxd5 26. R3d2 Qxc2 27. Rxc2 Rd8 28. f5 Rd7 29. Rcd2 d4 30. Bxb7 Rxb7 31. Rc2 a5
>>32. Re1 Kh7 33. Re5 Rd7 34. Rd2 b4 35. axb4 axb4 36. Rb5 Rd6 37. Rd3 g6 38. Kg2
>>gxf5 39. Rxf5 Kg6 40. Rb5 Kf6 41. Kf3 Ke6 42. Ke4 Rc6 43. Rf3 Bc5 44. Rb8 f6
>>45. Rh8 Bd6 46. Rxh6 Be5 47. Rf5 Kd7 48. Rh7+ Kd6 49. Rxe5 fxe5 50. Rh6+ Kd7
>>51. Rxc6 Kxc6 52. h4 Kd6 53. g4 b3 54. g5 Ke6 55. h5 Kf7 56. Kd3 1-0
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