Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Test: transposition to won pawn end game

Author: Martin Giepmans

Date: 06:01:45 04/17/04

Go up one level in this thread


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?
>
>[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


SpiderChess plays Rxe5 after 16 seconds (AMD 2000 XP; no tablebases):
.....
14  0:00:09  + 2.56  F5-F2 C6-C1 E4-D3 D6-D5 H7-B7 C1-D1 D3-C2 D1-E1 B7xB4
    0:00:16  + 3.24  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 H4-H5
14  0:00:18  + 3.36  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4
15  0:00:20  + 5.07  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4
15  0:00:23  + 5.07  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4
16  0:00:28  + 5.43  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4
16  0:00:34  + 5.43  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4
17  0:00:48  + 5.79  F5xE5 F6xE5 H7-H6 D6-D7 H6xC6 D7xC6 H2-H4 C6-D6 G3-G4

Martin



This page took 0 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.