RWBC new results (note for Peter Rosendahl/Resp)

[Günther Simon]

Geschrieben von: / Posted by: Günther Simon at 06 January 2004 20:25:42:

ExChess 4.03a versus Resp 0.19
RWBC Class B 3rd Edition
8/1p2K3/1B2p3/3b4/5Pk1/8/8/1B6 b - - 0 72 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h generated with GenDiag 1.8 (C) 2002 by Andreas Herrmann 
Be4?? with 0.00 draw score (bug in drawish constellations eval)

Resp played 71...Nxb6! before, which is in fact the best way to
a sure draw, but after 72.Bxb6 it suddenly played Be4?? instead
of immediately Kxf4 with a drawn position.
The error is easy and always reproducable.
Günther
[Event "RWBC Class B 3rd edition"]
[Site "ESPRESSO"]
[Date "2004.01.05"]
[Round "6"]
[White "EXchess403a"]
[Black "Resp019"]
[Result "1-0"]
[ECO "E51"]
[PlyCount "158"]
[EventDate "2003.12.??"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Be7 6. Nf3 O-O 7. Qc2 c5 8. dxc5
Bxc5 9. Bd3 dxc4 10. Bxc4 Bd7 11. O-O Qc7 12. b3 Bc6 13. e4 Nbd7 14. b4 Bd6 15.
Bb3 Ne5 16. Nd4 Neg4 17. h3 Be5 18. hxg4 Bxd4 19. Nb5 Qe5 20. Nxd4 Qxd4 21. Bb2
Qxe4 22. Qxe4 Nxe4 23. Rfd1 a5 24. Bd4 Rfc8 25. Rac1 axb4 26. axb4 Rd8 27. Ra1
Rxa1 28. Bxa1 Rc8 29. Rc1 Ra8 30. Bb2 Nd2 31. Bd1 Rd8 32. Be2 Nb3 33. Rd1 Rxd1+
34. Bxd1 Nd2 35. g5 Bd5 36. f4 Ne4 37. Be2 f6 38. gxf6 gxf6 39. Kh2 Kf7 40. b5
Kg6 41. g4 h6 42. b6 f5 43. gxf5+ Kxf5 44. Be5 Nd2 45. Kg3 Ke4 46. Kg4 Bc4 47.
Bd1 Bb3 48. Be2 Ke3 49. Bb5 Bd1+ 50. Kg3 h5 51. Bc7 Ne4+ 52. Kh4 Bf3 53. Be5
Nc5 54. Bd6 Kd4 55. Be8 Bd5 56. Be5+ Kc4 57. Kxh5 Nd3 58. Bd6 Nf2 59. Kg6 Ne4
60. Bc7 Kc5 61. Bd7 Kb4 62. Kg7 Nc5 63. Be8 Kc3 64. Kf6 Kd4 65. Bf7 Ke4 66. Ke7
Kf5 67. Bg8 Na4 68. Bh7+ Kg4 69. Kf6 Nc5 70. Bb1 Nd7+ 71. Ke7 Nxb6 72. Bxb6 Be4
73. Bxe4 Kxf4 74. Bxb7 e5 75. Kf6 e4 76. Bc7+ Kf3 77. Kf5 Ke3 78. Bxe4 Kd4 79.
Bb6+ Kc4 {Black resigns} 1-0

RWBC Class B 3rd Edition - Round 6
106. Round 6 9.SmarThink017a - 6.Phalanx22 0 - 1 [59 ]SmarThinks book line seems to lead to a bad endgame?
107. Round 6 3.FranMAD009 - 4.Knightdreamer_32 1 - 0 [64 ]
108. Round 6 5.EXchess403a - 8.Resp019 1 - 0 [79 ]Resp blundered because of a bug in a drawn endgame
109. Round 6 1.Baron11b3 - 13.Terra33b2 0 - 1 [40 ]
110. Round 6 15.Ufim403 - 38.Kaissa17 1 - 0 [50 ]Kaissa underestimated Rxd5 after 32...Bd5?
111. Round 6 37.Gothmog_043 - 11.Amateur_270 1 - 0 [52 ]
112. Round 6 20.Movei00_8145 - 40.SlowChess_289b 1 - 0 [91 ]
113. Round 6 36.LadyGambit_10 - 41.Frenzee_149 0 - 1 [61 ]
114. Round 6 19.Knightx181 - 2.ArasanX72 0 - 1 [70 ]
115. Round 6 39.Tytan_3041 - 12.Esc_116 = - = [30 ]
116. Round 6 16.Chezzz_103 - 30.Betsy_651 0 - 1 [126]
117. Round 6 21.Bestia_090 - 18.Fortress162 1 - 0 [81 ]Fortress even lost a won endgame with some bad moves
118. Round 6 10.Cerebro_123 - 32.Butcher142c 1 - 0 [60 ]
119. Round 6 34.Averno052 - 14.Beowulf22 0 - 1 [52 ]
120. Round 6 17.LordKing4 - 33.GnuChess507ITC 1 - 0 [40 ]*T Gnu5 lost on time in a won position
121. Round 6 42.Postmodernist_1007 - 22.Ant_606 = - = [109]*A Ant missed a win in the endgame (PM in the opening)
122. Round 6 35.Gaviota033 - 26.Cyberpagno201 0 - 1 [43 ]
123. Round 6 27.InmiChess305 - 7.Dragon_45 1 - 0 [50 ]
124. Round 6 25.Ghost013 - 29.Hagrid_0756 0 - 1 [49 ]
125. Round 6 23.GnuChess40pl77 - 28.EnginMax_511c 1 - 0 [28 ]
126. Round 6 31.Ax_08 - 24.LDB20c = - = [46 ]
RWBC Class B 3rd Edition - Round 7
1 Phalanx22, CZ [5] : FranMad009, UK [5]
2 SmarThink017a, RU [5] : ExChess403a, US [5]
3 Terra33b2, SE [4.5] : Movei00_8145, IS [4]
4 Resp019, DE [4] : Ufim403, RU [4]
5 Frenzee149, DK [4] : Gothmog_043, NO [4]
6 Betsy_651, US [3.5] : Baron_11b3, NL [3.5]
7 ArasanX72, US [3.5] : Bestia_090, UA [3.5]
8 Knightdreamer_32, SE [3.5] : Kaissa_17, BY [3.5]
9 Cyberpagno201, IT [3] : Cerebro_123, AR [3]
10 Amateur_270, US [3] : LordKing4, IT [3]
11 Esc116, IT [3] : LadyGambit_10, IT [3]
12 Beowulf22, US [3] : Tytan_3041, PL [3]
13 SlowChess_289b, US [3] : Chezzz_103, DK [2.5]
14 Fortress162, CH-I [2.5] : PostModernist1007, UK [2.5]
15 Butcher142c, PL [2.5] : KnightX180a, FR [2.5]
16 Ant_606, NL [2.5] : InMiChess305, AT [2.5]
17 Hagrid_0756, DE [2.5] : GnuChess40pl77, US [2]
18 GnuChess507ITC, US [2] : Averno052, ES [2]
19 Dragon_45, FR [1.5] : Gaviota033, AR [2]
20 Ghost013, DE [1.5] : Ax_08, VI [1.5]
21 LDB20c, CH [.5] : EnginMax_511c, DE [.5]
Standings
Place Name Feder Author Score M-Buch. Buch. Progr.
1 SmarThink017a, RU Sergei Markov 5.0 19.5 27.5 25.0
2 Phalanx22, CZ Dusan Dobes 5.0 18.5 25.5 22.0
3 ExChess403a, US Dan Homann 5.0 17.5 23.0 21.0
4 FranMad009, UK Tom King 5.0 16.0 21.5 22.0
5 Terra33b2, SE Peter Fendrich 4.5 15.5 21.5 18.5
6 Resp019, DE Peter Rosendahl 4.0 21.0 28.5 22.0
7 Movei00_8145, IS Uri Blass 4.0 17.5 24.0 16.5
8 Gothmog_043, NO Tord Romstad 4.0 17.0 24.5 18.0
9 Ufim403, RU Nyaz Khasanov 4.0 16.5 24.0 17.0
10 Frenzee149, DK Sune Fischer 4.0 16.5 23.0 18.0
11 Knightdreamer_32, SE Johan Melin 3.5 20.5 27.0 18.5
12 Kaissa_17, BY Vladimir Yelin 3.5 17.0 23.5 16.5
13 Bestia_090, UA George Lyapko 3.5 15.5 23.0 15.5
14 Baron_11b3, NL Richard Pijl 3.5 14.5 21.5 17.0
15 ArasanX72, US Jon Dart 3.5 13.5 20.0 15.5
16 Betsy_651, US Landon W. Rabern 3.5 13.5 20.0 12.0
17 Amateur_270, US Will Singleton 3.0 19.5 27.0 18.0
18 SlowChess_289b, US Jonathan Kreuzer 3.0 18.0 25.5 18.0
19 Esc116, IT Claudio della Corte 3.0 17.0 23.0 15.0
20 Cerebro_123, AR Antonio Senatore 3.0 14.5 20.0 14.0
21 LadyGambit_10, IT Carlo Pivotto 3.0 14.5 20.0 13.0
22 LordKing4, IT Carlo Pivotto 3.0 14.5 20.0 11.5
23 Cyberpagno201, IT Marco Pagnoncelli 3.0 14.5 20.0 11.0
24 Beowulf22, US Colin Frayn + Dann Corbit 3.0 14.0 21.0 13.0
25 Tytan_3041, PL Tomasz Michniewski 3.0 13.5 19.0 12.5
26 Chezzz_103, DK David Rasmussen 2.5 17.0 24.5 12.5
27 Fortress162, CH-I Alessandro Damiani 2.5 15.5 20.0 12.5
28 KnightX180a, FR Christophe Jolly 2.5 15.0 20.0 11.5
29 Butcher142c, PL Marek Kolacz 2.5 13.5 19.0 11.0
30 Ant_606, NL Tom Vijlbrief 2.5 13.0 19.5 11.0
31 PostModernist1007, UK Andrew Williams 2.5 13.0 18.5 11.5
32 InMiChess305, AT Werner Inman 2.5 12.5 18.0 7.5
33 Hagrid_0756, DE Klaus Friedel 2.5 11.5 16.0 9.0
34 Averno052, ES Jose Carlos 2.0 16.0 23.0 10.5
35 GnuChess507ITC, US Chua K. Sian + Stuart Cracraft 2.0 13.0 17.5 8.0 2
36 GnuChess40pl77, US John Stanback 2.0 10.5 14.5 5.0 2
37 Gaviota033, AR Miguel Ballicora 2.0 10.5 14.0 9.0
38 Ghost013, DE Philipp Classen 1.5 15.0 20.0 8.0
39 Dragon_45, FR Bruno Lucas 1.5 13.0 17.5 8.5
40 Ax_08, VI Pham Hong Nguyen 1.5 10.5 14.0 6.0
41 EnginMax_511c, DE Engin Uestuen 0.5 11.0 16.5 3.5
42 LDB20c, CH Marc-Phillipe Huget 0.5 10.5 16.0 1.0

[Will Singleton]

Geschrieben von: / Posted by: Will Singleton at 06 January 2004 22:25:37:
Als Antwort auf: / In reply to: RWBC new results (note for Peter Rosendahl/Resp) geschrieben von: / posted by: Günther Simon at 06 January 2004 20:25:42:

ExChess 4.03a versus Resp 0.19
RWBC Class B 3rd Edition
8/1p2K3/1B2p3/3b4/5Pk1/8/8/1B6 b - - 0 72 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h generated with GenDiag 1.8 (C) 2002 by Andreas Herrmann 
Be4?? with 0.00 draw score (bug in drawish constellations eval)
Resp played 71...Nxb6! before, which is in fact the best way to
a sure draw, but after 72.Bxb6 it suddenly played Be4?? instead
of immediately Kxf4 with a drawn position.
The error is easy and always reproducable.
Günther

The bug is in the KBKP recognizer. Apparently it treats KBBKP the same as KBKP. Easy to fix.
Will

[Günther Simon]

Geschrieben von: / Posted by: Günther Simon at 06 January 2004 22:34:21:
Als Antwort auf: / In reply to: Re: RWBC new results (note for Peter Rosendahl/Resp) geschrieben von: / posted by: Will Singleton at 06 January 2004 22:25:37:

The bug is in the KBKP recognizer. Apparently it treats KBBKP the same as KBKP. Easy to fix.
Will

Thanks Will. I am sure Peter will appreciate your information.
Best regards,
Günther

[Peter Rosendahl]

Geschrieben von: / Posted by: Peter Rosendahl at 07 January 2004 17:25:55:
Als Antwort auf: / In reply to: Re: RWBC new results (note for Peter Rosendahl/Resp) geschrieben von: / posted by: Günther Simon at 06 January 2004 22:34:21:

The bug is in the KBKP recognizer. Apparently it treats KBBKP the same as KBKP. Easy to fix.
Will

Thanks Will. I am sure Peter will appreciate your information.
Best regards,
Günther

Thanks to both of you,
and Will is right: this was a bug in the KBKP recognizer
which already showed up in other games. Currently Resp
development has to take a break, because I'm quite busy,
but when I pick up the development again I hope to
release a version that fixes this and many other bugs.
Best regards,
Peter