RWBC new results(+ interesting endgame Rybka vs. Chiron)

[Günther Simon]

Geschrieben von:/Posted by: Günther Simon at 13 June 2004 15:11:53:

RWBC Class D 4th Edition - Round 13
253. #13 Celes_078RWBC         -  SSEChess_2045          [123] =-=  A29  (:1) | SSEChess missed perhaps a win in the endgame
254. #13 Rybka_1532            -  Chiron_038             [ 67] 1-0  B50  (qn:n1) | Chiron even missed a win (strange sac by Rybka)
255. #13 NagaSkaki_301         -  Rinko_115              [ 43] 1-0  B15  (qrb3:q4) | Big blunder by Rinko 33...Bxc5??
256. #13 DanChess_105b2        -  Delphil_07g            [ 36] 1-0  B63  (qrN3:qrn4) |
257. #13 Sharper_017           -  Uragano_077m           [ 87] 0-1  D02  (1:qn2) |
258. #13 Snitch_0357           -  DrunkenMaster_104      [ 49] =-=  C69  (rn5:n5) |
259. #13 GK_090                -  Fruit_X0521            [ 77] 0-1  C47  (1:q3) | Fruit: 27...g5?? GK: 32.Qg2?
260. #13 BlackBishop_097i      -  Booot_33               [ 65] 0-1  C65  (2:qr1) |
261. #13 Bodo_02b              -  Zappa_070X             [120] =-=  D37  (r:n) |*A Bodo missed perhaps a win?
262. #13 Jonny_262             -  Chispa_4032            [ 62] 1-0  E97  (rn2:r1) | Chispa had a sure draw with 35...Rxe4!
263. #13 Requiem_053           -  BSC_28                 [ 40] =-=  D00  (Rbn7:RN7) |
264. #13 Bruja_16              -  Tinker_447             [ 88] 0-1  D27  (qrb3:qRn5) |
265. #13 Mustang_267           -  Monik_211              [ 70] 0-1  C97  (b2:q3) |
266. #13 Fauce_041c            -  Merlin_12              [ 81] 0-1  B03  (1:r1) |
267. #13 Gerbil_02             -  Embracer_112           [155] 1-0  A22  (4:1) |*C Embracer crashed in lost position
268. #13 Knightcap_33          -  ChessterfieldCL_i5a    [ 51] 1-0  A00  (qrBn4:rbn3) |
269. #13 Aldebaran_070         -  Morphy_322             [ 67] 0-1  C22  (2:qr2) |
270. #13 Muriel_071            -  SnailChess_4013        [ 65] 0-1  A46  (:Qb1) |
271. #13 ColChess_80DC         -  Simontacchi_181        [ 60] 0-1  C95  (q3:qr4) |
272. #13 Neurosis_18b          -  NoonianChess_36e2      [ 53] 1-0  B07  (Rb3:1) |
273. #13 Grizzly_1401b         -  Gargamella_050         [ 70] 1-0  D25  (qn1:) |
Rybka could even win an lost endgame vs. Chiron, which has different
interesting motifs like far away passers, possible 2N ending etc...
It seems 51...Nxh3 turns the position which looks won still in
move 46 and further into an even lost one!
Rybka - Chiron (RWBC Class D round 13)
Interesting endgame
 abcdefgh  8          8  7        7  6         6  5        5  4       4  3        3  2         2  1          1  abcdefgh ChessDiag V1.01 (12-OCT-2002)8/p6p/4k3/3nn3/P2K2P1/3P3P/1N6/8 w - - 0 46
 abcdefgh  8          8  7        7  6         6  5         5  4      4  3       3  2          2  1          1  abcdefgh ChessDiag V1.01 (12-OCT-2002)8/p6p/K7/6n1/P3NkP1/3Pn2P/8/8 b - - 0 51
[Event "RWBC_Class_D_4th_Edition"]
[Site "ESPRESSO"]
[Date "2004.06.12"]
[Round "13"]
[White "Rybka_1532"]
[Black "Chiron_038"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "133"]
[EventDate "2004.??.??"]
1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Bb5+ Bd7 7. Bxd7+ Nfxd7 8.
d3 Nc6 9. Bf4 e5 10. Bg5 f6 11. Be3 f5 12. exf5 gxf5 13. Qb3 f4 14. Qxb7 Na5
15. Qd5 fxe3 16. b4 cxb4 17. cxb4 Nb6 18. Qe4 d5 19. Qg4 Qd7 20. Qh5+ Qf7 21.
Qxf7+ Kxf7 22. fxe3 Nb7 23. Nbd2 Ke8 24. Rac1 Rc8 25. Rxc8+ Nxc8 26. e4 Nb6 27.
exd5 Nxd5 28. Nc4 Nf4 29. Nfxe5 Ne2+ 30. Kf2 Nc3 31. Re1 Rf8+ 32. Kg1 Kd8 33.
a3 Bxe5 34. Rxe5 Rf7 35. Re3 Re7 36. g4 Nd6 37. Rxe7 Kxe7 38. Kf2 Nb1 39. a4
Nc3 40. Nb2 Ke6 41. Ke3 Nd5+ 42. Kd4 Nxb4 43. h3 Nf7 44. Nd1 Ne5 45. Nb2 Nd5
46. Nd1 Nf3+ 47. Kc4 Ke5 48. Nf2 Ne3+ 49. Kb5 Kf4 50. Ne4 Ng5 51. Ka6 Nxh3 52.
Kxa7 Nxg4 53. a5 Ke3 54. a6 Kxd3 55. Nd6 h5 56. Kb6 Ne3 57. a7 Nd5+ 58. Kb7
Nhf4 59. a8=Q Ke2 60. Qa2+ Kf3 61. Qb3+ Kg4 62. Qd1+ Kg5 63. Ne4+ Kh6 64. Qg1
Ng6 65. Qg5+ Kg7 66. Qxd5 h4 67. Qg5 {Chiron resigns} 1-0
Two also interesting games:
[Event "RWBC_Class_D_4th_Edition"]
[Site "ESPRESSO"]
[Date "2004.06.12"]
[Round "13"]
[White "Bodo_02b"]
[Black "Zappa_070X"]
[Result "1/2-1/2"]
[ECO "D37"]
[PlyCount "240"]
[EventDate "2004.??.??"]
1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Rc1
Bb4 9. Bd3 Qa5 10. O-O dxc4 11. Bxc4 Nc6 12. a3 Bxc3 13. Rxc3 e5 14. b4 Qc7 15.
Nxe5 Nxe5 16. Qd4 Nfg4 17. h3 Qe7 18. Bd5 Rd8 19. hxg4 Be6 20. e4 Nxg4 21. Rd1
Rd7 22. Rcc1 Qf6 23. Qxf6 Nxf6 24. Bxe6 Rxd1+ 25. Rxd1 fxe6 26. f3 Rc8 27. Be5
Kf7 28. g4 Kg6 29. Kf2 Rc2+ 30. Ke3 Ra2 31. Rd3 b6 32. b5 h5 33. gxh5+ Nxh5 34.
Bb8 Kg5 35. Rb3 Nf6 36. Rc3 Kg6 37. Bxa7 Nd7 38. f4 Kf7 39. e5 Ke7 40. Kf3 Ra1
41. Kg3 Ra2 42. Kh4 Rh2+ 43. Kg4 Rg2+ 44. Kf3 Ra2 45. Ke3 g6 46. Kf3 Ra1 47.
Kg4 Rg1+ 48. Kh4 Rb1 49. Kg5 Rxb5 50. Rc6 Rb3 51. Kxg6 Rb1 52. Kh5 Rb3 53. Kg4
Rb1 54. Rc3 Rg1+ 55. Rg3 Rb1 56. Kh4 Rh1+ 57. Kg5 Kd8 58. Rc3 Rg1+ 59. Kh4 Rb1
60. Kg4 Rb2 61. Kf3 Rb5 62. Rc6 Ke7 63. Ke4 Rb3 64. Rd6 Rb1 65. Ke3 Re1+ 66.
Kf2 Rb1 67. Ke2 Rb2+ 68. Kf3 Rb3+ 69. Kg4 Nf6+ 70. Kh4 Nd7 71. a4 Rb4 72. Kg5
Rb2 73. Rd4 Rg2+ 74. Kh4 Rb2 75. Kg4 Rb1 76. Kf3 Rb3+ 77. Ke2 Rb2+ 78. Ke3 Ke8
79. Kd3 Ra2 80. Rd6 Ra3+ 81. Kd2 Rxa4 82. Bxb6 Rxf4 83. Ke3 Rf5 84. Rxe6+ Kf7
85. Rh6 Nxb6 86. Ke4 Rxe5+ 87. Kxe5 Nd7+ 88. Kd6 Kg7 89. Rh1 Nf6 90. Ke6 Nh7
91. Rg1+ Kh6 92. Kf5 Nf8 93. Rg8 Nh7 94. Rg6+ Kh5 95. Rg2 Kh6 96. Rg8 Kh5 97.
Rg6 Nf8 98. Rd6 Nh7 99. Rd2 Kh6 100. Rc2 Kg7 101. Rc6 Nf8 102. Rc7+ Kh6 103.
Re7 Nh7 104. Rb7 Ng5 105. Rb3 Nf7 106. Rh3+ Kg7 107. Rg3+ Kf8 108. Ra3 Nd8 109.
Ra7 Nc6 110. Rc7 Ne7+ 111. Ke6 Ng8 112. Rf7+ Ke8 113. Rg7 Kf8 114. Rh7 Ke8 115.
Rb7 Kf8 116. Rc7 Nh6 117. Re7 Kg8 118. Rb7 Kf8 119. Rh7 Ng8 120. Ra7 Nh6 {
Game adjourned} 1/2-1/2
[Event "RWBC_Class_D_4th_Edition"]
[Site "ESPRESSO"]
[Date "2004.06.12"]
[Round "13"]
[White "Jonny_262"]
[Black "Chispa_4032"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "123"]
[EventDate "2004.??.??"]
1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5
Ne7 9. b4 Nh5 10. Re1 f5 11. c5 fxe4 12. Nxe4 Nf4 13. Bxf4 Rxf4 14. Nfd2 dxc5
15. Bc4 Nxd5 16. bxc5 c6 17. Nd6 Rd4 18. Qc2 b5 19. Bxd5+ Rxd5 20. N2e4 Be6 21.
g3 Qe7 22. Kg2 Rd4 23. Rad1 Rd8 24. f3 a5 25. Qe2 Qd7 26. Rd2 a4 27. Qe3 b4 28.
Rb2 Qa7 29. Qg5 Rf8 30. Ra1 Qd7 31. Qe3 b3 32. axb3 axb3 33. Rxb3 Bxb3 34.
Qxb3+ Kh8 35. Qb6 Qe6 36. Qb7 g5 37. Ra7 Qg6 38. Nf7+ Kg8 39. Nfxg5 Rfd8 40. h4
h5 41. Qb3+ R8d5 42. Re7 Rd3 43. Qa2 Bf8 44. Rxe5 Bg7 45. Re6 Qf5 46. Re8+ Bf8
47. Ne6 Qxf3+ 48. Kh2 Qxg3+ 49. Nxg3 Rd2+ 50. Qxd2 Rxd2+ 51. Kh3 Kf7 52. Rxf8+
Kxe6 53. Re8+ Kd7 54. Re5 Rd4 55. Nxh5 Kc7 56. Ng3 Kb7 57. h5 Ka6 58. h6 Rd8
59. Rh5 Rh8 60. h7 Kb5 61. Ne4 Kb4 62. Ng5 {Chispa abandona con piezas negras}
1-0

[Anthony Cozzie]

Geschrieben von:/Posted by: Anthony Cozzie at 13 June 2004 17:04:02:
Als Antwort auf:/In reply to: RWBC new results(+ interesting endgame Rybka vs. Chiron) geschrieben von:/posted by: Günther Simon at 13 June 2004 15:11:53:

Could you post the debug or log for Zappa for moves 18-21?
Move 18: Current Zappa needs 4 seconds to switch from Bd5 to hxg4:
1. Bc4-d5 Rf8-d8 2. h3xg4 Bc8-e6 3. e3-e4 Be6xd5 4. e4xd5 Ne5xg4 5. d5-d6
= (1.00) Depth: 9/25 00:00:03.32 1840kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Qe7-f8 4. Bf4-c7 Bc8-e6 5. Bc7xd8 Be6xc4
= (0.80) Depth: 10/25 00:00:04.24 2630kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Bc8-e6 4. Rc4-c7 Rd8-d7 5. g4-g5 Ra8-d8 6. Rc7xd7 Qe7xd7 7. Rf1-c1
= (0.96) Depth: 13/26 00:00:34.22 29065kN
Move 20: Current Zappa never considers e4 at all:
1. Bf4xe5 Rd8xd5 2. Qd4-f4 f7-f6 3. Be5-d4 Qe7-d6 4. Qf4xd6 Rd5xd6 5. f2-f3 a7-a5 6. b4xa5 Ra8xa5 7. Rf1-b1 Rd6-d7
= (0.84) Depth: 14/28 00:00:42.68 39140kN
Move 21: Current Zappa never considers Rd1 at all, instead playing Rc7 with a score difference of about 1/2 pawn. (this is the one that I really don't understand)
1. Rc3-c7 Qe7-h4 2. Bf4-g3 Qh4-h5 3. Rc7xb7 Be6xd5 4. e4xd5 Qh5xd5 5. Qd4xd5 Rd8xd5 6. Bg3-b8 a7-a6 7. Rf1-c1 Rd5-d8
= (0.71) Depth: 14/35 00:00:58.45 55641kN
The endgame is pretty interesting, becaue Bodo always had the resource Rd3 Nc5!
anthony

[Günther Simon]

Geschrieben von:/Posted by: Günther Simon at 13 June 2004 18:26:00:
Als Antwort auf:/In reply to: Re: RWBC new results(+ interesting endgame Rybka vs. Chiron) geschrieben von:/posted by: Anthony Cozzie at 13 June 2004 17:04:02:

Could you post the debug or log for Zappa for moves 18-21?
Move 18: Current Zappa needs 4 seconds to switch from Bd5 to hxg4:
1. Bc4-d5 Rf8-d8 2. h3xg4 Bc8-e6 3. e3-e4 Be6xd5 4. e4xd5 Ne5xg4 5. d5-d6
= (1.00) Depth: 9/25 00:00:03.32 1840kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Qe7-f8 4. Bf4-c7 Bc8-e6 5. Bc7xd8 Be6xc4
= (0.80) Depth: 10/25 00:00:04.24 2630kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Bc8-e6 4. Rc4-c7 Rd8-d7 5. g4-g5 Ra8-d8 6. Rc7xd7 Qe7xd7 7. Rf1-c1
= (0.96) Depth: 13/26 00:00:34.22 29065kN
Move 20: Current Zappa never considers e4 at all:
1. Bf4xe5 Rd8xd5 2. Qd4-f4 f7-f6 3. Be5-d4 Qe7-d6 4. Qf4xd6 Rd5xd6 5. f2-f3 a7-a5 6. b4xa5 Ra8xa5 7. Rf1-b1 Rd6-d7
= (0.84) Depth: 14/28 00:00:42.68 39140kN
Move 21: Current Zappa never considers Rd1 at all, instead playing Rc7 with a score difference of about 1/2 pawn. (this is the one that I really don't understand)
1. Rc3-c7 Qe7-h4 2. Bf4-g3 Qh4-h5 3. Rc7xb7 Be6xd5 4. e4xd5 Qh5xd5 5. Qd4xd5 Rd8xd5 6. Bg3-b8 a7-a6 7. Rf1-c1 Rd5-d8
= (0.71) Depth: 14/35 00:00:58.45 55641kN
The endgame is pretty interesting, becaue Bodo always had the resource Rd3 Nc5!
anthony

Anthony it seems you screwed up the colors?
Should I post the debug anyway?
Best,
Günther

[Dieter Bürßner]

Geschrieben von:/Posted by: Dieter Bürßner at 13 June 2004 18:53:10:
Als Antwort auf:/In reply to: RWBC new results(+ interesting endgame Rybka vs. Chiron) geschrieben von:/posted by: Günther Simon at 13 June 2004 15:11:53:

Rybka could even win an lost endgame vs. Chiron, which has different
interesting motifs like far away passers, possible 2N ending etc...
It seems 51...Nxh3 turns the position which looks won still in
move 46 and further into an even lost one!
[Event "RWBC_Class_D_4th_Edition"]
[Site "ESPRESSO"]
[Date "2004.06.12"]
[Round "13"]
[White "Rybka_1532"]
[Black "Chiron_038"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "133"]
[EventDate "2004.??.??"]
1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Bb5+ Bd7 7. Bxd7+ Nfxd7 8.
d3 Nc6 9. Bf4 e5 10. Bg5 f6 11. Be3 f5 12. exf5 gxf5 13. Qb3 f4 14. Qxb7 Na5
15. Qd5 fxe3 16. b4 cxb4 17. cxb4 Nb6 18. Qe4 d5 19. Qg4 Qd7 20. Qh5+ Qf7 21.
Qxf7+ Kxf7 22. fxe3 Nb7 23. Nbd2 Ke8 24. Rac1 Rc8 25. Rxc8+ Nxc8 26. e4 Nb6 27.
exd5 Nxd5 28. Nc4 Nf4 29. Nfxe5 Ne2+ 30. Kf2 Nc3 31. Re1 Rf8+ 32. Kg1 Kd8 33.
a3 Bxe5 34. Rxe5 Rf7 35. Re3 Re7 36. g4 Nd6 37. Rxe7 Kxe7 38. Kf2 Nb1 39. a4
Nc3 40. Nb2 Ke6 41. Ke3 Nd5+ 42. Kd4 Nxb4 43. h3 Nf7 44. Nd1 Ne5 45. Nb2 Nd5
46. Nd1 Nf3+ 47. Kc4 Ke5 48. Nf2 Ne3+ 49. Kb5 Kf4 50. Ne4 Ng5 51. Ka6 Nxh3 52.
Kxa7 Nxg4 53. a5 Ke3 54. a6 Kxd3 55. Nd6 h5 56. Kb6 Ne3 57. a7 Nd5+ 58. Kb7
Nhf4 59. a8=Q Ke2 60. Qa2+ Kf3 61. Qb3+ Kg4 62. Qd1+ Kg5 63. Ne4+ Kh6 64. Qg1
Ng6 65. Qg5+ Kg7 66. Qxd5 h4 67. Qg5 {Chiron resigns} 1-0

Perhaps it was not lost yet, after 51...Nxh3, and 53...Ne5 was still good for a draw. I could not find a win. Possible lines result in KQKNNP (perhaps this TB is already available).
With some backwards analysis, I get 0.0 score after 53...Ne5.
96857426 2:55.8 0.00 17. 53...Ne5 54. a6 Nxd3 55. Kb6 Kxe4 56. a7 h5 57.
Kc7 Nhf4 58. a8=Q+ Kd4 {-241}
Regards,
Dieter

[Günther Simon]

Geschrieben von:/Posted by: Günther Simon at 13 June 2004 19:07:03:
Als Antwort auf:/In reply to: Re: RWBC new results(+ interesting endgame Rybka vs. Chiron) geschrieben von:/posted by: Dieter Bürßner at 13 June 2004 18:53:10:

Rybka could even win an lost endgame vs. Chiron, which has different
interesting motifs like far away passers, possible 2N ending etc...
It seems 51...Nxh3 turns the position which looks won still in
move 46 and further into an even lost one!

Perhaps it was not lost yet, after 51...Nxh3, and 53...Ne5 was still good for a draw. I could not find a win. Possible lines result in KQKNNP (perhaps this TB is already available).
With some backwards analysis, I get 0.0 score after 53...Ne5.
96857426 2:55.8 0.00 17. 53...Ne5 54. a6 Nxd3 55. Kb6 Kxe4 56. a7 h5 57.
Kc7 Nhf4 58. a8=Q+ Kd4 {-241}
Regards,
Dieter

I totally agree with that line (may be h5 transposed though),
but I simply had assumed that this must be won for White.
After a closer look I am not sure anymore and it needs
obiously the mentioned 6men for a proof.
Regards,
Günther

[Anthony Cozzie]

Geschrieben von:/Posted by: Anthony Cozzie at 13 June 2004 21:37:07:
Als Antwort auf:/In reply to: Re: RWBC new results(+ interesting endgame Rybka vs. Chiron) geschrieben von:/posted by: Günther Simon at 13 June 2004 18:26:00:

Could you post the debug or log for Zappa for moves 18-21?
Move 18: Current Zappa needs 4 seconds to switch from Bd5 to hxg4:
1. Bc4-d5 Rf8-d8 2. h3xg4 Bc8-e6 3. e3-e4 Be6xd5 4. e4xd5 Ne5xg4 5. d5-d6
= (1.00) Depth: 9/25 00:00:03.32 1840kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Qe7-f8 4. Bf4-c7 Bc8-e6 5. Bc7xd8 Be6xc4
= (0.80) Depth: 10/25 00:00:04.24 2630kN
1. h3xg4 Ne5xc4 2. Rc3xc4 Rf8-d8 3. Qd4-c3 Bc8-e6 4. Rc4-c7 Rd8-d7 5. g4-g5 Ra8-d8 6. Rc7xd7 Qe7xd7 7. Rf1-c1
= (0.96) Depth: 13/26 00:00:34.22 29065kN
Move 20: Current Zappa never considers e4 at all:
1. Bf4xe5 Rd8xd5 2. Qd4-f4 f7-f6 3. Be5-d4 Qe7-d6 4. Qf4xd6 Rd5xd6 5. f2-f3 a7-a5 6. b4xa5 Ra8xa5 7. Rf1-b1 Rd6-d7
= (0.84) Depth: 14/28 00:00:42.68 39140kN
Move 21: Current Zappa never considers Rd1 at all, instead playing Rc7 with a score difference of about 1/2 pawn. (this is the one that I really don't understand)
1. Rc3-c7 Qe7-h4 2. Bf4-g3 Qh4-h5 3. Rc7xb7 Be6xd5 4. e4xd5 Qh5xd5 5. Qd4xd5 Rd8xd5 6. Bg3-b8 a7-a6 7. Rf1-c1 Rd5-d8
= (0.71) Depth: 14/35 00:00:58.45 55641kN
The endgame is pretty interesting, becaue Bodo always had the resource Rd3 Nc5!
anthony

Anthony it seems you screwed up the colors?
Should I post the debug anyway?
Best,
Günther

Hehehehe. Well, I can only say that Zappa sucks after watching that game
anthony