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Parent - - By skulibj (*) Date 2008-01-27 19:40
How big tablebases does Rybka have?
Parent - By Nick (*****) Date 2008-01-27 20:04
Rybka has all 5-piece (so around 7GB there) plus about 70GB of 6-piece nalimov EGTBs available to her in CCT10.
Parent - By Uri Blass (*****) Date 2008-01-27 19:41
This seems to be a clear draw based on the live page.

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qc2 b6 9. Bf4 Ba6 10. b3 Nbd7 11. Rd1 Rc8 12. Nc3 Qe8 13. a4 dxc4 14. bxc4 Bxc4 15. Ne4 Nxe4 16. Qxc4 Bd6 17. Ne5 f5 18. Rac1 h6 19. Nd3 Qe7 20. f3 Bxf4 21. Nxf4 Nd6 22. Qxe6+ Qxe6 23. Nxe6 Rfe8 24. Nf4 g5 25. Ng6 Rxe2 26. Bf1 Ree8 27. Ne5 Nb8 28. f4 Kh7 29. Bd3 Kg7 30. fxg5 hxg5 31. Rf1 Rf8 32. Nf3 Kf6 33. h4 gxh4 34. Nxh4 Rce8 35. Kg2 Ke6 36. Rf2 Rh8 37. Bxf5+ Nxf5 38. Rxf5 Kd6 39. Ng6 Re2+ 40. Kf3 Rhh2 41. Nf4 Ref2+ 42. Kg4 Rh7 43. Rf6+ Kd7 44. Kf5 Kc7 45. Kg6 Rfh2 46. Ne6+ Kb7 47. Nd8+ Ka6 48. Nxc6 Nxc6 49. Rcxc6 Rd7 50. Rf4 Ra2 51. g4 Rxa4 52. g5 Ra2 53. Rf7 Rxd4 54. Rcc7 Rd6+ 55. Kg7 Rg2 56. Rxa7+ Kb5 57. Rf5+ Kc4 58. Rc7+ Kd4 59. Rc1 Rd7+ 60. Kg6 Rd6+ 61. Kf7 Ke4 62. Rf6 Rxf6+ 63. gxf6 Tablebases draw 63... Kd5 64. Rf1 b5 65. Re1 Kd6 66. Re4 Rd2 67. Rf4 Rc2 68. Kg6 Rg2+ 69. Kf5 Rg1 70. Rd4+ Kc5 71. Re4 Rf1+ 72. Ke6 b4 73. Re5+ Kc4 74. Re2 b3 75. f7 Kc3 76. Re3+ Kc2 77. Rg3 b2 78. Rg2+ Kc1 79. Rxb2 Kxb2 80. Ke7 [*]
Parent - - By Carl Bicknell (*****) Date 2008-01-27 19:42
what is Naum's style of play? Aggressive or Ry- ahem - positional?
Parent - By Nick (*****) Date 2008-01-27 20:00
I'd describe it as Rybka-like, so super-positional.  It searches really deep, take a look at how it took apart Hiarcs for instance.  It's a very interesting engine now for sure.
Parent - - By Nick (*****) Date 2008-01-27 19:59
Thanks Jeroen, it was a lot of fun, the next time we use your book with CA CTG support ok?!
Parent - By FWCC (***) Date 2008-01-27 21:31
THanks for PGN
Parent - By Nick (*****) Date 2008-01-27 19:44
Ok game 1 of 2 of the unofficial CCT10 tiebreak was drawn.   Naum's (white) last book move was 17. Ne5 and Rybka's was 18 ... h6, she came out of book with eval 0.00.   We were under pressure most of the game and white's passed g-pawn at one stage looked like it could become a monster.   Rybka lost a core near the end for some reason (see pic attached) so I am rebooting.   One more game to play, Rybka with the white pieces.

[Event "ICC 50 3 u"]
[Site "Internet Chess Club"]
[Date "2008.01.27"]
[Round "?"]
[White "NaumXMP"]
[Black "Rybka"]
[Result "1/2-1/2"]
[ECO "E00"]
[WhiteElo "2765"]
[BlackElo "2821"]
[PlyCount "163"]
[EventDate "2008.??.??"]
[TimeControl "3000+3"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qc2
b6 9. Bf4 Ba6 10. b3 Nbd7 11. Rd1 Rc8 12. Nc3 Qe8 13. a4 dxc4 14. bxc4 Bxc4 15.
Ne4 Nxe4 16. Qxc4 Bd6 17. Ne5 f5 18. Rac1 h6 19. Nd3 Qe7 20. f3 Bxf4 21. Nxf4
Nd6 22. Qxe6+ Qxe6 23. Nxe6 Rfe8 24. Nf4 g5 25. Ng6 Rxe2 26. Bf1 Ree8 27. Ne5
Nb8 28. f4 Kh7 29. Bd3 Kg7 30. fxg5 hxg5 31. Rf1 Rf8 32. Nf3 Kf6 33. h4 gxh4
34. Nxh4 Rce8 35. Kg2 Ke6 36. Rf2 Rh8 37. Bxf5+ Nxf5 38. Rxf5 Kd6 39. Ng6 Re2+
40. Kf3 Rhh2 41. Nf4 Ref2+ 42. Kg4 Rh7 43. Rf6+ Kd7 44. Kf5 Kc7 45. Kg6 Rfh2
46. Ne6+ Kb7 47. Nd8+ Ka6 48. Nxc6 Nxc6 49. Rcxc6 Rd7 50. Rf4 Ra2 51. g4 Rxa4
52. g5 Ra2 53. Rf7 Rxd4 54. Rcc7 Rd6+ 55. Kg7 Rg2 56. Rxa7+ Kb5 57. Rf5+ Kc4
58. Rc7+ Kd4 59. Rc1 Rd7+ 60. Kg6 Rd6+ 61. Kf7 Ke4 62. Rf6 Rxf6+ 63. gxf6 Kd5
64. Rf1 b5 65. Re1 Kd6 66. Re4 Rd2 67. Rf4 Rc2 68. Kg6 Rg2+ 69. Kf5 Rg1 70.
Rd4+ Kc5 71. Re4 Rf1+ 72. Ke6 b4 73. Re5+ Kc4 74. Re2 b3 75. f7 Kc3 76. Re3+
Kc2 77. Rg3 b2 78. Rg2+ Kc1 79. Rxb2 Kxb2 80. Ke7 Kc3 81. f8=Q Rxf8 82. Kxf8 {
Game drawn because neither player has mating material} 1/2-1/2

Console log will be attached also.
Attachment: naum-rybka.txt (31k)
Attachment: naum-rybka.rsz.jpg (178k)
Parent - - By Nick (*****) Date 2008-01-27 21:38
The second tiebreak game between Rybka and Naum also ended in a draw.   Naum's last book move was 14 ... Nf6 and Rybka's was 16. Rac1 with an eval of 0.00 (could have been better!)

[Event "ICC 50 3 u"]
[Site "Internet Chess Club"]
[Date "2008.01.27"]
[Round "?"]
[White "NaumXMP"]
[Black "Rybka"]
[Result "1/2-1/2"]
[ECO "E00"]
[WhiteElo "2765"]
[BlackElo "2821"]
[PlyCount "163"]
[EventDate "2008.??.??"]
[TimeControl "3000+3"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 O-O 7. O-O c6 8. Qc2
b6 9. Bf4 Ba6 10. b3 Nbd7 11. Rd1 Rc8 12. Nc3 Qe8 13. a4 dxc4 14. bxc4 Bxc4 15.
Ne4 Nxe4 16. Qxc4 Bd6 17. Ne5 f5 18. Rac1 h6 19. Nd3 Qe7 20. f3 Bxf4 21. Nxf4
Nd6 22. Qxe6+ Qxe6 23. Nxe6 Rfe8 24. Nf4 g5 25. Ng6 Rxe2 26. Bf1 Ree8 27. Ne5
Nb8 28. f4 Kh7 29. Bd3 Kg7 30. fxg5 hxg5 31. Rf1 Rf8 32. Nf3 Kf6 33. h4 gxh4
34. Nxh4 Rce8 35. Kg2 Ke6 36. Rf2 Rh8 37. Bxf5+ Nxf5 38. Rxf5 Kd6 39. Ng6 Re2+
40. Kf3 Rhh2 41. Nf4 Ref2+ 42. Kg4 Rh7 43. Rf6+ Kd7 44. Kf5 Kc7 45. Kg6 Rfh2
46. Ne6+ Kb7 47. Nd8+ Ka6 48. Nxc6 Nxc6 49. Rcxc6 Rd7 50. Rf4 Ra2 51. g4 Rxa4
52. g5 Ra2 53. Rf7 Rxd4 54. Rcc7 Rd6+ 55. Kg7 Rg2 56. Rxa7+ Kb5 57. Rf5+ Kc4
58. Rc7+ Kd4 59. Rc1 Rd7+ 60. Kg6 Rd6+ 61. Kf7 Ke4 62. Rf6 Rxf6+ 63. gxf6 Kd5
64. Rf1 b5 65. Re1 Kd6 66. Re4 Rd2 67. Rf4 Rc2 68. Kg6 Rg2+ 69. Kf5 Rg1 70.
Rd4+ Kc5 71. Re4 Rf1+ 72. Ke6 b4 73. Re5+ Kc4 74. Re2 b3 75. f7 Kc3 76. Re3+
Kc2 77. Rg3 b2 78. Rg2+ Kc1 79. Rxb2 Kxb2 80. Ke7 Kc3 81. f8=Q Rxf8 82. Kxf8 {
Game drawn because neither player has mating material} 1/2-1/2

Victor from Convekta is carrying on the fight *I believe* so you may see CARobot v NaumXMP games carrying on.   I need to go and be a daddy now!   Thanks for your interesting, this is Nick signing off, we co-won CCT10 with Naum, congratulations to Alex.  Sorry I couldn't win outright (Hiarcs!) but we'll get them next time.  All the best.
Attachment: rybka-naum.txt (52k)
Parent - By Victor Zakharov (*****) Date 2008-01-27 21:44
Some problem with Naum autoplayer. New game was not started.

CARobot will wait for an hour and then exit
Parent - - By Nick (*****) Date 2008-01-27 23:37
Ooops that is not tiebreak game 2, this is ..

[Event "ICC 50 3 u"]
[Site "Internet Chess Club"]
[Date "2008.01.27"]
[Round "-"]
[White "Rybka"]
[Black "NaumXMP"]
[Result "1/2-1/2"]
[ICCResult "Game drawn by the 50 move rule"]
[WhiteElo "2821"]
[BlackElo "2765"]
[Opening "QGA: classical, Rubinstein variation"]
[ECO "D26"]
[NIC "QI.01"]
[Time "14:46:47"]
[TimeControl "3000+3"]

1. c4 e6 2. d4 Nf6 3. Nf3 d5 4. e3 dxc4 5. Bxc4 a6 6. a4 c5 7. O-O Nc6 8.
Qe2 cxd4 9. Rd1 Be7 10. exd4 O-O 11. Nc3 Nd5 12. Qe4 Nf6 13. Qd3 Nb4 14. Qe2
b6 15. Be3 Bb7 16. Rac1 Rc8 17. Ne5 Re8 18. Bb3 h6 19. Bf4 Bd6 20. Bg3 Nbd5
21. Nxd5 Nxd5 22. Rxc8 Qxc8 23. Qf1 Qd8 24. Bc4 a5 25. Rc1 Re7 26. Qd3 Rc7
27. Qd1 g6 28. Bxd5 Bxd5 29. Rc3 Kg7 30. Qc2 Rxc3 31. bxc3 Bxe5 32. Bxe5+ f6
33. Bg3 Qe8 34. f3 b5 35. axb5 Qxb5 36. h4 a4 37. Bd6 Qa6 38. Ba3 Qc6 39.
Kf2 h5 40. Qb2 Bb3 41. Qd2 Qd5 42. Bc1 g5 43. Kg1 Kf7 44. Ba3 Qf5 45. hxg5
Qxg5 46. Qe2 Kg7 47. Qa6 e5 48. Qa7+ Kg6 49. Bf8 Qe3+ 50. Kh2 Qf4+ 51. Kg1
Qc1+ 52. Kh2 Bf7 53. Qxa4 Qxc3 54. dxe5 Qxe5+ 55. Kg1 Qe3+ 56. Kh2 Bd5 57.
Qc2+ Kf7 58. Bd6 Kg7 59. Qf5 Qg5 60. Qd7+ Bf7 61. Bg3 Qe3 62. Qd6 Bc4 63.
Bf4 Qd3 64. Qxd3 Bxd3 65. g3 Kg6 66. Kg2 Bc4 67. Be3 f5 68. Kf2 Be6 69. Bf4
Bd7 70. Bd2 Bb5 71. Be3 Ba6 72. Bc1 Bc4 73. Bf4 Bd5 74. Ke3 Be6 75. Bc7 Kf7
76. Kd4 Kg6 77. f4 Kf6 78. Bd8+ Kf7 79. Ke5 Bc8 80. Bg5 Bd7 81. Bf6 Bc8 82.
Bh4 Be6 83. Kd6 Bc4 84. Bd8 Be2 85. Ba5 Bb5 86. Ke5 Bd7 87. Bd2 Ke7 88. Bc3
Kf7 89. Kd6 Bb5 90. Bd4 Kg6 91. Ke7 Bc6 92. Ke6 Be4 93. Kd6 Bh1 94. Bc3 Bg2
95. Be5 Be4 96. Ke6 Bb7 97. Bf6 Bc8+ 98. Ke7 Bb7 99. Be5 Bd5 100. Ke8 Bb3
101. Kd7 Bc4 102. Bd4 Bb5+ 103. Ke6 Bc4+ 104. Ke5 Bf1 105. Bc5 Bh3 106. Bb6
Bf1 107. Bf2 Bb5 108. Be1 Bd7 109. Kd6 Bb5 110. Ke6 Bd3 111. Bc3 Bc4+ 112.
Kd6 Be2 113. Kd7 Kh6 114. Ba5 Bc4 115. Kd6 Kg6 116. Bb6 Be2 117. Kd5 Bd3
118. Bd8 Be4+ 119. Kd6 Bf3 120. Ke6 Be2 121. Ke5 Bd3 122. Kd6 Be4 123. Bb6
Kf6 124. Bd4+ Kg6 125. Ke6 Bd3 126. Ke7 Bc4 127. Be5
{Game drawn by the 50 move rule}
1/2-1/2
Parent - - By M ANSARI (*****) Date 2008-01-28 07:05
Good job Nick with the tourney and great result for Rybka even though it had one loss and a draw against Ikarus.  But if you play enough computer games you realize that even against a not so strong opponent Rybka can draw or lose games.  In a small set of games anything can happen.  Hiarcs is a very well developed and strong engine and I think in this case it just got a better position and outplayed Rybka ... nothing wrong with the book moves IMHO.  I think the real star in this tournament was Naum ... which had me sort of worried due to some of the Naum 3 beta games I analyzed ... it is REALLY strong and plays very similar to Rybka (which can only be good).  Had it not been for the unfortunate missed opportunity of not playing the first "easy" game, surely Naum would have been on top.  As it is it had a very powerful performance and looks like the engine to look out for.  You have to remember that Naum and Rybka were playing on 4 cores and other major players were on 8 cores and even 16 cores ... so congrats to Rybka team for again coming out on top and thanks for again doing such a great job in winning another tournament.
Parent - - By Nick (*****) Date 2008-01-28 13:46
Thanks Majd, I agree Naum is probably the Rybka nemesis right now, and you have to give credit to Enrico for the super job he did with his bookline in our lost game to HIARCS.  You know I'm still not sure about it, I found this nice win by Bjorn (Wazir Baba) I think I would have rather played a completely different line though.  Still never mind, at least we have the Zappa win, something I was really motivated to achieve, mainly for Dagh/Vas & Jeroen after Mexico.  I won't publicly say what my black prep was for the potential of Zappa-Rybka but it was looking good in training :)   How's your cluster project going btw?

[Event "5m + 0s, rated"]
[Site "?"]
[Date "2007.12.12"]
[Round "?"]
[White "Jjn2002, Rybka 2.3.2a mp 32-"]
[Black "Wazir Baba, Rybka 2.3.2a mp 1"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "2579"]
[BlackElo "2820"]
[PlyCount "136"]
[EventDate "2007.12.23"]
[EventType "blitz"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3
a6 9. e4 c5 10. d5 Bb7 11. O-O Qc7 12. dxe6 fxe6 13. Bc2 c4 14. Nd4 Nc5 15. Be3
O-O-O 16. Qe2 e5 17. Nf3 Bd6 18. Rfd1 Rhe8 19. b3 Ncxe4 20. Bxe4 Bxe4 21. Nxe4
Nxe4 22. Rdc1 Ba3 23. Rc2 Bc5 24. bxc4 b4 25. Ne1 Nc3 26. Qg4+ Kb8 27. Bxc5
Qxc5 28. h3 Qd4 29. Qxg7 Rd7 30. Qg4 Kc7 31. Qxd4 exd4 32. Nd3 a5 33. Kf1 Rde7
34. Rac1 Kb6 35. Rd2 Re4 36. g4 Rc8 37. c5+ Kb5 38. Kg2 h5 39. g5 Rg8 40. f4
Re3 41. Rcc2 Kc4 42. Nf2 d3 43. Rc1 Re2 44. Rxe2 dxe2 45. Kf3 a4 46. c6 b3 47.
axb3+ axb3 48. Ne4 b2 49. Rxc3+ Kb4 50. Kxe2 b1=Q 51. Rc4+ Ka5 52. c7 Re8 53.
Kd2 Qf1 54. c8=Q Qxf4+ 55. Kd3 Qf3+ 56. Kd2 Rxc8 57. Rxc8 Qg2+ 58. Kd1 Qxe4 59.
Rc3 Kb4 60. Rc8 Qd5+ 61. Kc1 Qxg5+ 62. Kd1 Qg1+ 63. Kd2 Qh2+ 64. Ke1 Qxh3 65.
Rf8 Qg4 66. Rb8+ Kc4 67. Re8 h4 68. Kf2 h3 0-1
Parent - - By Harvey Williamson (*****) Date 2008-01-28 13:54
The book line Enrico played is in the Hiarcs 10.ctg opening book so nothing new!
Parent - By Nick (*****) Date 2008-01-28 14:25
Hmm I don't have that ctg book, but if it's in there can I assume it's in the engine books that came with the UCI versions of HIARCS which I did buy?  10, 11 and something called X54 IIRC.  I really don't know as they are not installed on my machine right now .. I will have to remedy that.   I tested against a bunch of books but not those HIARCS engine books.  Anyway, water under the bridge - well done :)
Parent - By M ANSARI (*****) Date 2008-01-29 05:54
Hardware is already here ... but will soon be upgraded to make use of the skulltrail platform.  I think on just one motherboard the performance will be much stronger than a 16 core the slaves will be souped up quads.  First generation of 2 motherboards seems simple enough ... but getting the 4 other computers running will be a little more difficult.  I am still looking for someone good with software to set it all up.  Maybe I can still talk Vas into it.  Anyway I am off for 5 week holiday now and will be travelling a lot.  So I am hoping sometime in April when I get back ... hopefully by then Vas would have finished the major work on Rybka 3 and new strong hardware will be out ... at that time maybe I can talk him into helping out a bit :)
Parent - - By Uly (Gold) Date 2008-01-28 20:38

> it is REALLY strong and plays very similar to Rybka (which can only be good).


I disagree. On a position in where several moves are playable, I'd like to see different engines of the same super strength playing a different move, so I find it sad that Rybka and Naum would play the same one.
Parent - - By Carl Bicknell (*****) Date 2008-01-28 21:24
Yes well my feelings on this are well known. It will be a shame if the only truely unique engine left is Junior...
Parent - By noctiferus (***) Date 2008-01-28 21:35
Agreed: I think that would be interesting if people could post, in the near future,  their impressions about the playing style of the new engines.
Parent - - By NATIONAL12 (Gold) Date 2008-01-28 21:58
thats one of the reasons i like Zappa Mexico.
Parent - - By Carl Bicknell (*****) Date 2008-01-28 22:17
I don't own Zappa Mexico but most people say it's super solid, rather like rybka. You think differently?

As soon as some of the new engines come out I will test them for playing style!
Parent - - By NATIONAL12 (Gold) Date 2008-01-28 22:28 Edited 2008-01-28 22:34
meico is much more attacking than rybka, it analyses differentlly to rybka, if you watched ccl tournament when they both rybka and mexico analysis up at the same time the moves reccomended by both sides were more often than not different. mexico is super solid in that at any given depth its analysis is better than rybka, the prob is that it takes so much longer to get to this depth. which at tournament time controls buggers it up.
Parent - By lkaufman (*****) Date 2008-01-30 03:43
This is true, but it has no real meaning. The reported depth is pretty arbitrary (at least for Rybka, I don't know so much about Zappa). Rybka could easily report a higher or lower depth, or make small search changes that would seem to make Rybka much faster or slower without any significant change in real strength. It all comes down to details about the search. The only meaningful comparison between programs is how they perform in the same amount of time.
Parent - - By Victor Zakharov (*****) Date 2008-01-28 10:41
Returning to Hiarcs - Rybka game. It is interesting to find where it was decisive problem.

[Event "ICC 50 3 u"]
[Site "Internet Chess Club"]
[Date "2008.01.27"]
[Round "?"]
[White "Hiarcs8x"]
[Black "Rybka"]
[Result "1-0"]
[ECO "D47"]
[WhiteElo "2817"]
[BlackElo "2821"]
[PlyCount "137"]
[EventDate "2008.??.??"]
[TimeControl "3000+3"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3
Bb7 9. O-O a6 10. e4 c5 11. d5 Qc7 12. dxe6 fxe6 13. Bc2 c4 14. Nd4 Nc5 15. Be3
O-O-O 16. Qe2 e5 17. Nf3 Bd6 18. Rfd1 Rhe8 19. b3 b4 20. Nd5 Bxd5 21. exd5 e4
22. Ng5 Bxh2+ 23. Kf1 c3 24. Bxc5 Qxc5 25. Qxa6+ Kc7 26. Ne6+ Rxe6 27. dxe6 Bg3
28. Qe2 Rf8 29. e7 Rf7 30. Kg1 Rxe7 31. a3 Nd5 32. Rxd5 Qxd5 33. fxg3 bxa3 34.
Qe3 Qd6 35. Qxc3+ Kb7 36. Qe3 Qb4 37. Kh2 Re6 38. Rd1 Rh6+ 39. Kg1 Qb6 40.
Bxe4+ Kb8 41. Qxb6+ Rxb6 42. Bxh7 Rxb3 43. Rb1 Rxb1+ 44. Bxb1 Kc7 45. Kf2 Kd6
46. Kf3 Ke5 47. Ke3 Ke6 48. Kf4 g6 49. Ba2+ Kf6 50. g4 g5+ 51. Ke4 Kg6 52. Ke5
Kg7 53. Ke6 Kg6 54. Ke7 Kg7 55. Bf7 Kh7 56. Kf6 Kh8 57. Kxg5 Kg7 58. Ba2 Kf8
59. Kf6 Ke8 60. g5 Kd7 61. g6 Kc7 62. g7 Kb7 63. g8=Q Kc6 64. Qd5+ Kb6 65. Ke7
Ka6 66. Bc4+ Kb6 67. Qb5+ Kc7 68. Bd5 Kc8 69. Qb7# {Black checkmated} 1-0

First not book move 19...b4 seems not good. I let Rybka m14 beta run for some time and she is not going to do it.

[(+0.35)]  d=22  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Qc6 24.bxc4 b4 25.Bd2 Nc5 26.Bg5 (0:54.41)
[(+0.32)]  d=21  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Qc6 24.bxc4 b4 25.Bd2 Nc5 26.Bg5 (0:25.10)
[(+0.28)]  d=20  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Qc6 24.bxc4 b4 25.Ng5 Nc3 26.Qh5 (0:13.55)
[(+0.35)]  d=19  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Bc5 24.bxc4 b4 25.Ne1 Bxe3 26.Qg4 (0:06.33)
[(+0.39)]  d=18  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Bc5 24.bxc4 b4 25.Ne1 Bxe3 26.Qg4 (0:03.45)
[(+0.32)]  d=17  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Bc5 24.Rb1 Nf6 25.bxc4 b4 26.Nh4 (0:02.00)
[(+0.36)]  d=16  19...Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Ba3 23.Rc2 Bc5 24.Rb1 Nf6 25.bxc4 b4 26.Nh4 (0:00.58)
[(+0.08)]  d=15  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.13)
[(+0.06)]  d=14  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.07)
[(+0.06)]  d=13  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.04)
[(+0.09)]  d=12  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.02)
[ (+0.11)]  d=11  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.01)
[(+0.13)]  d=10  19...Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 Nxg5 26.Bxg5 (0:00.01)
[(+0.00)]  d=9  19...Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.Qc2 Nf6 23.bxc4 e4 24.Nd4 Bxh2 25.Kh1 Ng4 (0:00.00)
[(-0.12)]  d=8  19...Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.Bb6 Qxb6 23.Qxe4 Bc5 24.bxc4 Bxf2 25.Kh1 (0:00.00)
[(-0.25)]  d=7  19...Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.Bb6 Qxb6 23.Qxe4 Bc5 (0:00.00)
[(-0.25)]  d=6  19...Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.Bb6 Qxb6 (0:00.00)
[(-0.34)]  d=5  19...Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.Qb2 (0:00.00)
[(-0.28)]  d=4  19...Ncxe4 (0:00.00)
[(-0.28)]  d=3  19...Ncxe4 (0:00.00)

Evaluation goes up for white with deeper analysis. So position demands very serious analysis to make some conclusions. I will publish the later conclusions.
Parent - By Victor Zakharov (*****) Date 2008-01-28 11:22
Analysis after 19...b4
Margin between these two moves (19...Ncxe4 and 19...b4) is not large so it seems that 19...b4 can be selected with some chances.

[(+0.41)]  d=22  20.Nd5 Nxd5 21.exd5 c3 22.g3 e4 23.Nd4 Bxd5 24.Nb5 axb5 25.Rxd5 Qc6 26.Qg4 Kc7 (0:18.52)
[(+0.42)]  d=20  20.Nd5 Nxd5 21.exd5 c3 22.g3 e4 23.Nd4 Bxd5 24.Nb5 axb5 25.Rxd5 Qc6 26.Qg4 Kc7 (0:05.19)
[(+0.44)]  d=19  20.Nd5 Nxd5 21.exd5 c3 22.g3 e4 23.Nd4 Bxd5 24.Nb5 axb5 25.Rxd5 Qc6 26.Qg4 Kc7 (0:03.37)
[(+0.45)]  d=17  20.Nd5 Nxd5 21.exd5 c3 22.Ng5 e4 23.Bxc5 Qxc5 24.Ne6 Rxe6 25.dxe6 Qe5 26.g3 Qxe6 (0:01.51)
[(+0.31)]  d=17  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Rde6 23.Ng5 Rc6 24.b4 Nd7 25.Qf7 Nf6 26.Qb3 h6 (0:00.37)
[(+0.43)]  d=16  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Ng5 Rc6 24.Ne6 Qf7 25.Nxd8 Qxc4 26.bxc4 Rxc5 (0:00.16)
[(+0.37)]  d=15  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Ng5 Rc6 24.Ne6 Rd4 25.Nxc7 Rxc4 26.bxc4 Kxc7 (0:00.09)
[(+0.41)]  d=14  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Ng5 Rc6 24.Ne6 Qf7 25.Nxd8 Qxc4 26.bxc4 Rxc5 (0:00.05)
[(+0.43)]  d=13  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Ng5 Rc6 24.Ne6 Qf7 25.Nxd8 Qxc4 26.bxc4 Rxc5 (0:00.04)
[(+0.14)]  d=13  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.Re1 Rb6 26.Nxe5 Rb2 (0:00.02)
[(+0.44)]  d=12  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.Re1 Rb6 26.Nxe5 Rb2 (0:00.02)
[(+0.26)]  d=12  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 Rd8 26.Re1 Bxe4 (0:00.01)
[(+0.56)]  d=11  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 Rd8 26.Re1 Bxe4 (0:00.01)
[(+0.26)]  d=11  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 Rd8 26.Re1 Bxe4 (0:00.01)
[(+0.56)]  d=10  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 Rc6 26.Nxe5 Re6 (0:00.00)
[(+0.31)]  d=9  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 Rc6 (0:00.00)
[(+0.37)]  d=8  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 24.bxc4 Rxd6 25.c5 (0:00.00)
[(+0.49)]  d=8  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Red8 23.Bxd6 Qxc4 (0:00.00)
[(+0.79)]  d=7  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 Rdd8 23.b4 (0:00.00)
[(+0.71)]  d=6  20.Qxc4 bxc3 21.Rxd6 Rxd6 22.Bxc5 (0:00.00)
Parent - By Victor Zakharov (*****) Date 2008-01-28 11:53
Rybka likes 18...Kb8 a move earlier instead of 18...Rhe8. But this one 18...Rhe8 was book move. It is always the problem where to finish book -to give an engine one more hint and time or to force it to think using newest code and CPU power.

[(+0.00)]  d=22  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.a4 b4 24.Rd1 Qc5 25.Nd5 (0:22.37)
[(+0.00)]  d=18  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.a4 b4 24.Rd1 Qc5 25.Nd5 (0:02.41)
[(+0.05)]  d=17  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.a4 b4 24.Rd1 Qc5 25.Nd5 (0:01.59)
[(+0.00)]  d=16  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.Rd1 Qc5 24.a4 Rf8 25.axb5 (0:01.28)
[(+0.09)]  d=15  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.Rd1 Qc5 24.a4 b4 25.Nd5 (0:00.50)
[(+0.27)]  d=15  18...Rhe8 19.b3 Ncxe4 20.Bxe4 Bxe4 21.Nxe4 Nxe4 22.Rdc1 Nc5 23.bxc4 b4 24.Nd2 e4 25.g3 (0:00.30)
[(+0.09)]  d=14  18...Rhe8 19.b3 Ncxe4 20.Bxe4 Bxe4 21.bxc4 Qxc4 22.Qxc4 bxc4 23.Nxe4 Nxe4 24.Rdc1 c3 25.Ng5 (0:00.17)
[(-0.05)]  d=13  18...Rhe8 19.Rac1 Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.a4 Kb8 23.axb5 axb5 24.h3 Bc5 25.Rxd8 (0:00.12)
[(-0.04)]  d=12  18...Rhe8 19.Rac1 Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.a4 Kb8 23.axb5 axb5 24.h3 Bc5 25.Rxd8 (0:00.08)
[(+0.02)]  d=11  18...Rhe8 19.Rac1 Ncxe4 20.Nxe4 Bxe4 21.Bxe4 Nxe4 22.a4 Kb8 23.axb5 axb5 24.Ra1 Bc5 (0:00.04)
[(+0.12)]  d=11  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.Rd1 Qc5 24.Nd5 Ka7 (0:00.01)
[(+0.07)]  d=10  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.Rd1 Qe6 24.Qe3 (0:00.01)
[(+0.05)]  d=9  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Bxd6 Rxd6 22.Rxd6 Qxd6 23.Rd1 (0:00.00)
[(+0.20)]  d=8  18...Kb8 19.Ng5 h6 20.Bxc5 hxg5 21.Be3 (0:00.00)
[(+0.20)]  d=7  18...Kb8 19.Ng5 h6 20.Bxc5 (0:00.00)
[(+0.02)]  d=6  18...Kb8 19.Ng5 h6 (0:00.00)
[(+0.19)]  d=6  18...Nfxe4 19.Nxe4 Nxe4 20.a4 (0:00.00)
[(+0.16)]  d=5  18...Nfxe4 19.Nxe4 (0:00.00)
[(+0.19)]  d=4  18...Nfxe4 (0:00.00)
[(+0.23)]  d=4  18...Ncxe4 (0:00.00)
Parent - - By Bouddha (****) Date 2008-01-28 10:55
Hi !

Is there somewhere we can download all games of this event ?

thanks & regards
Parent - By Victor Zakharov (*****) Date 2008-01-28 11:44
First day is covered by the following link
http://www.cctchess.com/cct10.pgn

I beleive later there will be all games there.

Selected games you can download from web translation ( or all translated games together from http://www.chessok.com/download/pgn/cct10_selected.pgn )
Parent - By noctiferus (***) Date 2008-01-28 11:56
A few hours ago it had only first day games.
here  http://www.cctchess.com/games.html  you get separated pgns for each round
Parent - - By Felix Kling (Gold) Date 2008-01-28 11:59
Maybe a stupid question, but who won the tournament? I've seen that there were two tie break games which ended in a draw, so ...?
Parent - - By Harvey Williamson (*****) Date 2008-01-28 12:03
Hi Felix,

Victory is shared between Naum and Rybka. The 2 tie break games were not official and both ended in draws anyway.

Harvey
Parent - - By Felix Kling (Gold) Date 2008-01-28 12:10
Aha, thanks Harvey :)
Parent - By RFK (Gold) Date 2008-02-03 04:24
Hi Harvey,

Hiarcs is showing itself to be a strong competitor.
Parent - By RFK (Gold) Date 2008-02-03 04:22
Once again Rybka leads the way. But, just out of curiosity what happened that Shredder didn't enter the tournament?
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