Not logged inRybka Chess Community Forum
Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka in Paderborn
1 2 3 4 5 Previous Next  
- - By Venator (Silver) Date 2007-12-25 10:42 Edited 2007-12-27 11:31
Hi all,

From December 27-30 the IPCCC Paderborn will be held in Germany. The Rybka team for this tournament is as follows:

Engine: Vasik Rajlich, Larry Kaufman
Hardware: Lukas Cimiotti
Openingbook: Dagh Nielsen, Jeroen Noomen
Operator: Hans van der Zijden
Live broadcast: Jeroen Noomen

We have asked the organisers for a second internet connection to provide a live broadcast at Playchess. Results will be
posted here as well.

Hans and I will drive to Paderborn at 2nd X-Mas evening. First round is Thursday 27th 10:00 local time. There are two
rounds on 27, 28 and 29 December, last round is on Sunday December 30th. First rounds start around 9:30 - 10:00.
Second round on a day around 13:30 - 14:00. Playing tempo is game in 2 hours.

Enjoy the fun!

Best regards, Jeroen

EDIT : Live Broadcast: http://www.chessok.com/broadcast/live.html
Parent - By Venator (Silver) Date 2007-12-25 10:52
Parent - - By Vasik Rajlich (Silver) Date 2007-12-25 15:45
Thanks Jeroen. Have fun over there :)

Vas
Parent - - By Linus (***) Date 2007-12-26 06:05
I find it funny that in the list of participants they still have the following description for Shredder:

Shredder by Stefan Meyer-Kahlen has already won nine titles as World Computer Chess Champion, is leading in all important computer chess rating lists and is accepted as the best chess program for PCs.

Especially the "leading in all important computer chess rating lists" is cute.
Parent - By richbell (**) Date 2007-12-26 11:37
Let's not boo on them too much, we might never have any opponents for Rybka in future tournaments if they decide to withdraw from participating like Fritz. :-)
Parent - By Harvey Williamson (*****) Date 2007-12-26 11:49
Yes the Shredder notes have not been updated. I also not that the Rybka team have not submitted any notes to be put on the website about Rybka. I sent the Hiarcs information and it was put on the site immediately.
Parent - By BB (****) Date 2007-12-27 11:45
Shredder [...] is leading in all important computer chess rating lists and is accepted as the best chess program for PCs.

To be fair, shredderchess.com only says:

> The Shredder chess programs by Stefan Meyer-Kahlen provide a game playing and analysis tool for everybody and are accepted as one of the best chess programs of the world. Since 1996, Stefan Meyer-Kahlen's Shredder chess program has won twelve titles as World Computer Chess Champion.

Parent - - By Nick (*****) Date 2007-12-26 13:09
Good luck, have a safe and successful trip .. we look forwards to the openings that Rybka will play :)
Parent - By richbell (**) Date 2007-12-26 16:07 Edited 2007-12-26 16:18
Can't wait to see the new monster unleashed. :-)

All the very best to Rybka and Hiarcs team.

If i am not mistaken, timezone for Paderborn is UTC +1 right?
Parent - - By Venator (Silver) Date 2007-12-27 09:01
Start of the first round is a bit delayed. Not all participants have arrived yet and there is no pairing yet.
Somewhere I heard Rybka plays Gandalf as black in round 1.

I hope everything with the broadcast will work.

Keep you posted.

Jeroen
Parent - - By Felix Kling (Gold) Date 2007-12-27 09:42 Edited 2007-12-27 11:30
Parent - - By Zruty (*****) Date 2007-12-27 09:50
Is there any live broadcast anywhere?
Parent - - By Felix Kling (Gold) Date 2007-12-27 09:51
on playchess, but I'll post the moves also here
Parent - - By Victor Zakharov (*****) Date 2007-12-27 09:56
Felix, if you can enter moves on ChessPlanet we can have web translation automatically with Rybka evaluations.
Parent - By Felix Kling (Gold) Date 2007-12-27 10:01
Chessplanet is a problem for me since it has problems with Wine and I can only enter it via chess assistant but there is a bug which leads to high ram usage which results in filling up the swap partition and a crash.
Parent - By Dadi Jonsson (Silver) Date 2007-12-27 09:56
r2r2k1/pp3p2/1n4pp/2pP1b2/2B5/1PR2N2/P3RPPP/6K1 w - -


[= (-0.10)]  d=22  20.Re5 Re8 21.h3 Rxe5 22.Nxe5 Rd8 23.Ng4 Bxg4 24.hxg4 Kf8 25.Rh3 Rd7 26.Rxh6 Nxd5 (0:00.00)
Parent - - By BB (****) Date 2007-12-27 10:10

> 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Bd3 dxc4 9. Bxc4 g6 10. O-O Bg7 11. Rc1 O-O 12. Re1 Rd8 13. Qe2 Qe7 14. e4 c5 15. d5 Nb6 16. b3 Bxc3 17. Rxc3 exd5 18. exd5 Qxe2 19. Rxe2 Bf5 20. Rd2 Rd6 21. Re3 Kg7 22. Re7 *


Is this the book exit position?
Parent - - By Felix Kling (Gold) Date 2007-12-27 10:12
no, it was 16.b3
Parent - By Zruty (*****) Date 2007-12-27 11:01
Live broadcast on ChessOK.com:
http://www.chessok.com/broadcast/live.html
Select 2007 -> Paderborn -> Live
Parent - - By Nick (*****) Date 2007-12-27 11:13
Up to book exit, the only possible root game in my collection, an Erdo loss :)

[Event "90m + 5s, rated"]
[Site "?"]
[Date "2004.06.06"]
[Round "?"]
[White "Christian Gorals, Gandalf 6.0"]
[Black "Erdo, Fritz Graz"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2496"]
[BlackElo "2609"]
[PlyCount "148"]
[EventDate "2004.04.06"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Bd3
dxc4 9. Bxc4 g6 10. O-O Bg7 11. Rc1 O-O 12. Re1 Rd8 13. Qe2 Qe7 14. e4 c5 15.
d5 Nb6 16. b3 Nxc4 17. bxc4 e5 18. Rb1 Rb8 19. Rb3 Rd6 20. Nb5 Ra6 21. Reb1 b6
22. Qc2 Ra5 23. Rd3 Bd7 24. Nd2 Rd8 25. a4 Ra6 26. Nf3 f5 27. Nd2 Rf8 28. Re1
f4 29. Ra1 Qf6 30. f3 Qh4 31. Rda3 Rc8 32. Nb3 Bf6 33. Qd1 Bd8 34. Nd6 Rb8 35.
R3a2 Qf6 36. Nb5 Kg7 37. Nc1 g5 38. Qe2 Rb7 39. Nd3 Ra5 40. Qb2 Be7 41. Ra3 h5
42. Rb3 a6 43. Nc3 g4 44. Rb1 Bd8 45. Qc2 gxf3 46. gxf3 h4 47. R3b2 h3 48. Kh1
Ra7 49. Nc1 Qh4 50. Nb3 Rxa4 51. Nxa4 Bxa4 52. Ra2 Bd7 53. Qf2 Qxf2 54. Rxf2
Kf6 55. Kg1 Be8 56. Kf1 Ke7 57. Ra2 Bd7 58. Ke2 Bc7 59. Nc1 Ra8 60. Kd3 Bc8 61.
Ne2 Rb8 62. Nc3 a5 63. Nb5 Bd8 64. Na7 Bb7 65. Rg1 Kf7 66. Rb2 a4 67. Ra2 Ra8
68. Rxa4 Bc7 69. Raa1 Bb8 70. Nc6 Bc7 71. Rxa8 Bxa8 72. Kc3 Kf8 73. Ra1 Bxc6
74. dxc6 Ke7 1-0

I'm off to a spa and will be back tomorrow evening !
Parent - - By Nelson Hernandez (Gold) Date 2007-12-29 00:02
This one from 2005 goes up to move 21.  Remarkable quality from a 3+0 game with these engines.  Interesting, the game was played the day before the computer chess world experienced a 9.0 earthquake.

Queen,Deep Shredder 9 (2709) - Feffernitz,Fruit 2.2.1 (2687) [D43]
3m + 0s, rated, 03.12.2005

1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.Nc3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 dxc4 9.Bxc4 g6 10.0-0 Bg7 11.Rc1 0-0 12.Re1 Rd8 13.Qe2 Qe7 14.e4 c5 15.d5 Nb6 16.b3 Bxc3 17.Rxc3 exd5 18.exd5 Qxe2 19.Rxe2 Bf5 20.Rd2 Rd6 21.Re3 Kf8 22.Nh4 Bd7 23.Nf3 Bf5 24.h3 Re8 25.Rxe8+ Kxe8 26.a4 a5 27.g4 Be4 28.Re2 f5 29.gxf5 gxf5 30.Nd2 Nxd5 31.Bxd5 Rxd5 32.f3 Rxd2 33.Rxd2 Bxf3 34.Kf2 Be4 35.Rd6 h5 36.h4 Kf7 37.Ke3 Kg7 38.Kf4 Kf7 39.Rh6 Kf8 40.Rxh5 Kg7 41.Rxf5 1-0
Parent - By Nick (*****) Date 2007-12-30 01:32
Thanks for the game, yes Dec 4th 05 I remember it well.  I was running Shredder 9/dual Opty my "tribbles" account on ICC when a fellow comp chess freak (Todd of "Beast" fame) brought the little fish to my attention.   She couldn't play the endgame so well back then and would often hang in it, but my goodness she won simply everything in the middlegame.  Fond memories.
Parent - - By Dadi Jonsson (Silver) Date 2007-12-27 11:01
The game is also being broadcast on ChessPlanet and here: http://www.chessok.com/broadcast/live.html

In both cases two engines (Rybka & Zappa) are running in the background analyzing the current position.
Parent - - By richbell (**) Date 2007-12-27 12:15
Congrats to Rybka on the first win.
Parent - By Venator (Silver) Date 2007-12-27 12:18
Here is the game with Rybka evals:

[Event "IPCCC Paderborn"]
[Site "Apeldoorn"]
[Date "2007.12.27"]
[Round "?"]
[White "Gandalf"]
[Black "Rybka"]
[Result "0-1"]
[ECO "D43"]
[PlyCount "118"]
[TimeControl "6300"]

{1MB, PaderbornB.ctg, Intel Core Duo T2300} 1. d4 {[%emt 0:00:00]} d5 {
[%emt 0:00:00]} 2. c4 {[%emt 0:00:02]} c6 {[%emt 0:00:00]} 3. Nc3 {
[%emt 0:00:02]} Nf6 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:01]} e6 {[%emt 0:00:00]
} 5. Bg5 {[%emt 0:00:01]} h6 {[%emt 0:00:00]} 6. Bxf6 {[%emt 0:00:01]} Qxf6 {
[%emt 0:00:00]} 7. e3 {[%emt 0:00:01]} Nd7 {[%emt 0:00:00]} 8. Bd3 {
[%emt 0:00:01]} dxc4 {[%emt 0:00:00]} 9. Bxc4 {[%emt 0:00:01]} g6 {
[%emt 0:00:00]} 10. O-O {[%emt 0:00:01]} Bg7 {[%emt 0:00:00]} 11. Rc1 {
[%emt 0:00:06]} O-O {[%emt 0:00:00]} 12. Re1 {[%emt 0:00:03]} Rd8 {
[%emt 0:00:00]} 13. Qe2 {[%emt 0:00:01]} Qe7 {[%emt 0:00:00]} 14. e4 {
[%emt 0:00:04]} c5 {[%emt 0:00:00]} 15. d5 {[%emt 0:00:01]} Nb6 {[%emt 0:00:00]
} 16. b3 {[%emt 0:00:03]} Bxc3 {[%eval -16,20] [%emt 0:01:57]} 17. Rxc3 {
[%emt 0:01:44]} exd5 {[%eval -19,23] [%emt 0:01:05]} 18. exd5 {[%emt 0:01:41]}
Qxe2 {[%eval -19,23] [%emt 0:00:00]} 19. Rxe2 {[%emt 0:02:59]} Bf5 {
[%eval -16,24] [%emt 0:02:17]} 20. Rd2 {(Re5) [%emt 0:03:08]} Rd6 {
[%eval -29,21] [%emt 0:01:55]} 21. Re3 {[%emt 0:03:22]} Kg7 {
[%eval -32,21] [%emt 0:00:01]} 22. Re7 {(h3) [%emt 0:03:40]} Bd7 {
[%eval -23,23] [%emt 0:06:05]} 23. a3 {(h4) [%emt 0:00:11]} Kf8 {
[%eval -44,22] [%emt 0:03:43]} 24. Re3 {(Re1) [%emt 0:03:25]} Rd8 {
[%eval -46,21] [%emt 0:01:23]} 25. h3 {(Ne5) [%emt 0:16:12]} Be8 {
[%eval -60,22] [%emt 0:01:58]} 26. Rc3 {[%emt 0:00:20]} f6 {
[%eval -65,21] [%emt 0:01:36]} 27. Nh4 {[%emt 0:00:42]} Bf7 {
[%eval -62,21] [%emt 0:02:50]} 28. Rcd3 {(Rg3) [%emt 0:00:14]} Re8 {
[%eval -81,22] [%emt 0:01:50]} 29. Nf3 {[%emt 0:02:00]} g5 {
[%eval -83,23] [%emt 0:03:52]} 30. Rd1 {[%emt 0:02:08]} Bg6 {
[%eval -84,25] [%emt 0:04:27]} 31. R3d2 {(Rc3) [%emt 0:02:34]} Nxc4 {
[%eval -107,21] [%emt 0:01:21]} 32. bxc4 {[%emt 0:01:13]} Ra6 {
[%eval -119,22] [%emt 0:00:01]} 33. Ra2 {(Nh2) [%emt 0:01:41]} Ra4 {
[%eval -132,20] [%emt 0:00:34]} 34. Nd2 {[%emt 0:01:20]} Re2 {
[%eval -140,22] [%emt 0:00:01]} 35. d6 {[%emt 0:03:45]} Re8 {
[%eval -152,22] [%emt 0:00:00]} 36. Nf1 {(f4) [%emt 0:07:24]} Rxc4 {
[%eval -164,22] [%emt 0:00:33]} 37. Ne3 {(Rb2) [%emt 0:00:58]} Rd4 {
[%eval -195,22] [%emt 0:00:33]} 38. Rad2 {[%emt 0:05:21]} Rxd2 {
[%eval -202,26] [%emt 0:00:00]} 39. Rxd2 {[%emt 0:00:26]} Rd8 {
[%eval -202,25] [%emt 0:00:51]} 40. g3 {(a4) [%emt 0:01:22]} Kf7 {
[%eval -213,21] [%emt 0:00:50]} 41. f4 {[%emt 0:01:51]} Be4 {
[%eval -226,24] [%emt 0:00:30]} 42. f5 {(fxg5) [%emt 0:00:53]} Ke8 {
[%eval -251,21] [%emt 0:00:53]} 43. g4 {[%emt 0:00:24]} Kd7 {
[%eval -278,23] [%emt 0:00:19]} 44. Nd1 {[%emt 0:00:40]} Bc6 {
[%eval -286,22] [%emt 0:00:20]} 45. Kf2 {(Ne3) [%emt 0:06:25]} b5 {
[%eval -330,19] [%emt 0:00:31]} 46. Ne3 {(Ke3) [%emt 0:01:24]} Rb8 {
[%eval -342,24] [%emt 0:00:47]} 47. Rd1 {(Ke2) [%emt 0:01:29]} a5 {
[%eval -337,19] [%emt 0:00:39]} 48. Rd2 {[%emt 0:01:22]} a4 {
[%eval -379,20] [%emt 0:00:00]} 49. Rd1 {(Nd5) [%emt 0:02:25]} b4 {
[%eval -429,18] [%emt 0:00:22]} 50. Ra1 {(Ke1) [%emt 0:01:29]} Kxd6 {
[%eval -493,19] [%emt 0:00:22]} 51. Ra2 {(Nc4+) [%emt 0:00:28]} Kc7 {
[%eval -508,21] [%emt 0:00:46]} 52. Ke2 {[%emt 0:00:54]} Rd8 {
[%eval -508,20] [%emt 0:00:00]} 53. Rc2 {(Rd2) [%emt 0:05:18]} Bb5+ {
[%eval -607,14] [%emt 0:00:18]} 54. Kf2 {[%emt 0:02:46]} Kb6 {
[%eval -632,16] [%emt 0:00:01]} 55. Rc1 {(Nc4+) [%emt 0:00:57]} Rd2+ {
[%eval -643,14] [%emt 0:00:21]} 56. Kg3 {(Kf3) [%emt 0:00:52]} bxa3 {
[%eval -682,15] [%emt 0:00:21]} 57. h4 {(Nf1) [%emt 0:00:46]} a2 {
[%eval -753,14] [%emt 0:00:16]} 58. Ra1 {(hxg5) [%emt 0:00:43]} Ka5 {
[%eval -761,13] [%emt 0:00:12]} 59. hxg5 {[%emt 0:03:37]} hxg5 {
[%eval -1047,18] [%emt 0:00:01]} 0-1
Parent - - By Zruty (*****) Date 2007-12-27 12:19
Thanks Dadi for the broadcast, we enjoyed Rybka's confident win with Black.
Parent - - By Linus (***) Date 2007-12-27 13:14
Rybka vs Hiarcs in round 2 is about to start. Live broadcast on Playchess.
Parent - - By Venator (Silver) Date 2007-12-27 15:46
A boring game, in which Rybka gives away her advantage with 11.Re1. In the end a completely closed
position is reached, in which neither program can do anything sensible. To avoid a 100 move shuffling
of pieces, we offer a draw which was accepted.

[Event "Paderborn 2007"]
[Site "Apeldoorn"]
[Date "2007.12.27"]
[Round "?"]
[White "Rybka"]
[Black "Hiarcs"]
[Result "1/2-1/2"]
[ECO "B01"]
[Annotator "Noomen,Jeroen"]
[PlyCount "83"]
[TimeControl "6300"]

{1MB, PaderbornA.ctg, Intel Core Duo T2300} 1. e4 {[%emt 0:00:00]} d5 {
[%emt 0:00:44]} 2. exd5 {[%emt 0:00:00]} Qxd5 {[%emt 0:00:22]} 3. Nc3 {
[%emt 0:00:00]} Qd6 {[%emt 0:00:22]} 4. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:12]
} 5. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:14]} 6. Nb5 {[%emt 0:00:00]} Qb6 {
[%emt 0:00:12]} 7. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:10]} 8. Nc3 {
[%emt 0:00:00]} Bg7 {[%emt 0:00:11]} 9. Be2 {[%emt 0:00:00]} O-O {
[%emt 0:00:11]} 10. O-O {[%emt 0:00:00]} Rd8 {[%emt 0:02:24]} 11. Re1 {
[%eval 27,19] [%emt 0:02:47]} Bg4 {(Na6) [%emt 0:03:51]} 12. Na4 {
[%eval 23,21] [%emt 0:03:17]} Qc7 {[%emt 0:04:18]} 13. Qb3 {
[%eval 13,21] [%emt 0:00:20]} Nbd7 {(Bxf3) [%emt 0:04:05]} 14. h3 {
[%eval 27,19] [%emt 0:02:15]} Bxf3 {(Be6) [%emt 0:03:35]} 15. Bxf3 {
[%eval 12,23] [%emt 0:05:15]} e5 {[%emt 0:00:00]} 16. dxe5 {
[%eval 14,22] [%emt 0:02:05]} Nxe5 {[%emt 0:00:09]} 17. Be2 {
[%eval 0,23] [%emt 0:05:25]} Ne4 {[%emt 0:00:09]} 18. Qc2 {
[%eval 0,22] [%emt 0:01:45]} f5 {(Nd6) [%emt 0:03:52]} 19. Be3 {
[%eval 1,21] [%emt 0:05:58]} c5 {(Nf7) [%emt 0:00:14]} 20. Nc3 {
[%eval 14,20] [%emt 0:01:59]} Nxc3 {[%emt 0:03:39]} 21. bxc3 {
[%eval 13,20] [%emt 0:00:01]} Rd7 {(Rac8) [%emt 0:03:18]} 22. f4 {
[%eval 2,22] [%emt 0:05:58]} Bh6 {(Nf7) [%emt 0:02:21]} 23. g3 {
[%eval 1,22] [%emt 0:04:59]} Rad8 {[%emt 0:03:10]} 24. Rad1 {
[%eval 1,22] [%emt 0:00:00]} b6 {[%emt 0:02:23]} 25. Bf2 {
[%eval 5,23] [%emt 0:01:31]} Rxd1 {[%emt 0:02:11]} 26. Rxd1 {
[%eval 4,24] [%emt 0:00:01]} Rxd1+ {(Nf7) [%emt 0:02:49]} 27. Qxd1 {
[%eval 5,23] [%emt 0:00:47]} Nf7 {[%emt 0:01:59]} 28. Bf3 {
[%eval 0,24] [%emt 0:00:00]} Bg7 {[%emt 0:02:04]} 29. Be1 {
[%eval 0,25] [%emt 0:00:01]} Bf6 {(Qe7) [%emt 0:02:34]} 30. Qd5 {
[%eval 3,23] [%emt 0:01:23]} Kg7 {(Kf8) [%emt 0:01:52]} 31. Qe6 {
[%eval 4,25] [%emt 0:01:59]} Qd6 {(Nd8) [%emt 0:02:57]} 32. Qe8 {
[%eval 0,25] [%emt 0:01:35]} Qd8 {(g5) [%emt 0:02:20]} 33. Qxd8 {
[%eval 0,28] [%emt 0:03:27]} Nxd8 {(Bxd8) [%emt 0:01:41]} 34. Bd2 {
[%eval 3,26] [%emt 0:01:55]} Kf7 {(Kf8) [%emt 0:01:33]} 35. Bd5+ {
[%eval 3,27] [%emt 0:01:10]} Ke7 {[%emt 0:02:21]} 36. Kf1 {
[%eval 1,28] [%emt 0:00:41]} Ne6 {[%emt 0:02:27]} 37. Ke2 {
[%eval 0,29] [%emt 0:00:33]} h6 {(Nc7) [%emt 0:00:11]} 38. Kf3 {
[%eval 0,26] [%emt 0:01:18]} Kd6 {(g5) [%emt 0:02:00]} 39. Be1 {
[%eval 0,27] [%emt 0:01:04]} g5 {[%emt 0:00:08]} 40. fxg5 {
[%eval 0,25] [%emt 0:00:54]} hxg5 {[%emt 0:01:59]} 41. Bd2 {
[%eval 0,28] [%emt 0:00:01]} Ke5 {(Ke7) [%emt 0:02:06]} 42. Bc1 {
[%eval 0,28] [%emt 0:01:13]} 1/2-1/2
Parent - - By Uri Blass (*****) Date 2007-12-27 16:12
I am disappointed.
This seems not to be a computer tournament.

My opinion is that in real computer tournament the operators should not be allowed to agree to draw when the draw is not obvious.

The final position is probably draw but I am not sure if it is a draw.
I tested it in fast time control against movei and rybka can win it.

Of course hiarcs is better than movei and the time control is longer but my opinion is that draw should be accepted only when it is obvious that it is impossible to win without a big tactical blunder

The following blitz game 1+1 proves that white can win without big tactical blunders by black

[Event "URI-AMD, Blitz:1'+1""]
[Site "URI-AMD"]
[Date "2007.12.27"]
[Round "2"]
[White "Rybka 2.3.2a 32-bit"]
[Black "Movei00_8_438"]
[Result "1-0"]
[ECO "B01"]
[Annotator "0.00;-0.16"]
[PlyCount "219"]
[TimeControl "60+1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 g6 6. Nb5 Qb6 7. c4 c6 8. Nc3
Bg7 9. Be2 O-O 10. O-O Rd8 11. Re1 Bg4 12. Na4 Qc7 13. Qb3 Nbd7 14. h3 Bxf3 15.
Bxf3 e5 16. dxe5 Nxe5 17. Be2 Ne4 18. Qc2 f5 19. Be3 c5 20. Nc3 Nxc3 21. bxc3
Rd7 22. f4 Bh6 23. g3 Rad8 24. Rad1 b6 25. Bf2 Rxd1 26. Rxd1 Rxd1+ 27. Qxd1 Nf7
28. Bf3 Bg7 29. Be1 Bf6 30. Qd5 Kg7 31. Qe6 Qd6 32. Qe8 Qd8 33. Qxd8 Nxd8 34.
Bd2 Kf7 35. Bd5+ Ke7 36. Kf1 Ne6 37. Ke2 h6 38. Kf3 Kd6 39. Be1 g5 40. fxg5
hxg5 41. Bd2 Ke5 42. Bc1 {Both last book move} Be7 {-0.16/12 3} 43. Kf2 {
(Bc1-e3) 0.00/16 5} Nc7 {(Be7-f6) -0.13/12 4} 44. Bc6 {0.00/16 3} Kd6 {
(Nc7-e6) -0.15/12 2} 45. Ba4 {0.00/15 3} Ne6 {-0.12/12 2} 46. Kf3 {0.01/16 3}
Nd8 {(Be7-f6) -0.34/12 6} 47. g4 {(Kf3-e2) 0.22/14 3} f4 {(Kd6-e6) -0.08/13 3}
48. h4 {0.19/13 1} Ke5 {(g5xh4) -0.06/12 2} 49. Bc2 {0.14/15 2} Nf7 {-0.02/12 2
} 50. Bg6 {0.09/15 2} Nd6 {-0.10/13 2} 51. Bd3 {0.13/15 1} Bf6 {
(Nd6-f7) -0.02/12 2} 52. h5 {(Bc1-d2) 0.13/14 1} Nf7 {(Ke5-e6) -0.46/13 2} 53.
Be2 {(Bc1-d2) 0.10/17 3} Bg7 {(Nf7-d6) -0.45/13 2} 54. Bd2 {0.11/18 4} Kd6 {
(Ke5-e6) -0.39/12 2} 55. Be1 {0.11/18 2} Ke7 {(Kd6-e6) -0.40/12 2} 56. Ke4 {
0.10/18 3} Kf6 {(Ke7-e6) -0.41/11 2} 57. a3 {(Ke4-f3) 0.10/18 3} Ke6 {
-0.37/12 2} 58. Bd2 {(Ke4-d3) 0.10/19 3} Ke7 {(Bg7-e5) -0.40/11 2} 59. Kf5 {
(Ke4-d5) 0.10/16 2} a6 {(Bg7-f6) -0.36/11 2} 60. Be1 {0.25/15 2} Bf6 {
-0.21/12 3} 61. a4 {0.23/14 1} Nd6+ {-0.09/12 2} 62. Kg6 {0.20/13 0} a5 {
(Nd6-f7) 0.00/13 3} 63. h6 {(Be2-f3) 0.41/16 2} Nf7 {-0.06/13 2} 64. Bd2 {
(Be2-d1) 0.24/17 4} Ke6 {(Nf7-e5+) -0.29/12 2} 65. Kh5 {(Be2-d1) 0.24/17 1} Ne5
{-0.18/13 2} 66. Be1 {(Be2-d1) 0.24/18 2} Kd7 {(Ke6-f7) -0.20/12 2} 67. Bf2 {
(Be2-d1) 0.23/18 4} Kd8 {(Kd7-e6) -0.24/12 2} 68. Bf1 {(Bf2-e1) 0.21/17 2} Ke8
{(Kd8-e7) -0.20/12 1} 69. h7 {(Bf2-e1) 0.09/15 4} Kf8 {(Ne5-f7) -0.42/14 3} 70.
h8=Q+ {0.37/14 1} Bxh8 {-0.05/13 1} 71. Kxg5 {0.47/16 2} f3 {0.00/12 2} 72. Kf5
{(Kg5-f4) 0.42/16 1} Nf7 {0.00/12 1} 73. Be1 {(Kf5-f4) 0.46/15 3} Ke7 {
(Bh8-e5) 0.08/11 2} 74. g5 {0.53/16 2} Nd6+ {0.32/12 3} 75. Kf4 {0.70/16 1} Nf7
{0.38/13 2} 76. Bh4 {(Be1-d2) 0.57/16 6} Ne5 {0.13/11 2} 77. Ke4 {
(g5-g6+) 0.50/16 1} Ng6 {(Ke7-e6) 0.72/12 3} 78. Be1 {0.82/16 3} Ne5 {
(Ke7-e6) 0.92/13 5} 79. Bg3 {1.01/16 1} Nf7 {1.04/12 1} 80. g6 {1.01/15 0} Ng5+
{(Nf7-d6+) 1.19/12 2} 81. Kf5 {1.12/13 1} Ne6 {1.31/13 2} 82. Bh4+ {1.22/13 1}
Kd6 {1.23/12 1} 83. Be1 {(Bf1-d3) 1.23/15 2} Ke7 {1.31/12 2} 84. Bd3 {1.24/15 2
} f2 {1.33/12 2} 85. Bxf2 {1.12/14 0} Bxc3 {1.40/11 1} 86. Bh4+ {1.25/15 1} Kd6
{1.33/12 2} 87. Bf1 {(Bh4-g3+) 1.46/16 6} Nd4+ {(Ne6-g7+) 1.38/10 1} 88. Ke4 {
1.60/14 1} Nc6 {(Nd4-e6) 1.49/11 1} 89. Bh3 {(Bh4-g3+) 1.83/15 1} Ne7 {
(Bc3-d4) 1.67/12 2} 90. Bf5 {1.98/14 1} Ng8 {(Ne7-c6) 1.97/12 1} 91. Bd8 {
(Bh4-g5) 2.34/15 2} Ne7 {2.30/13 2} 92. Bxb6 {2.42/14 1} Nc6 {2.36/13 2} 93.
Kf4 {2.42/14 1} Ne7 {(Bc3-d2+) 2.47/12 3} 94. Bd8 {2.48/14 1} Nc6 {2.72/12 3}
95. Bh4 {(Bd8-g5) 2.48/14 1} Bg7 {2.74/11 2} 96. Ke4 {2.48/15 2} Nb4 {2.77/12 2
} 97. Bg4 {(Bh4-g3+) 2.48/15 1} Bc3 {2.66/11 2} 98. Bg5 {3.45/16 2} Bg7 {
2.99/12 1} 99. Kf5 {(Bg5-d2) 3.12/14 0} Nc2 {2.71/12 2} 100. Bf6 {
(Bg5-f4+) 3.12/12 0} Ne3+ {2.74/16 2} 101. Kg5 {3.12/11 0} Bxf6+ {3.46/16 2}
102. Kxf6 {5.24/16 0} Nxg4+ {4.16/18 2} 103. Kg5 {4.44/14 0} Ke7 {
(Kd6-e6) 9.79/18 36} 104. Kxg4 {4.63/13 0} Kf6 {(Ke7-f8) 10.70/20 1} 105. Kf4 {
5.69/14 4} Kxg6 {13.72/26 1} 106. Ke4 {(Kf4-e5) 29.20/13 1} Kf6 {13.72/24 1}
107. Kd5 {29.39/12 1} Ke7 {(Kf6-f7) 18.00/22 1} 108. Kxc5 {30.59/11 0} Kd7 {
14.20/21 1} 109. Kb6 {30.44/14 3} Kc8 {(Kd7-d8) 23.28/19 1} 110. Kc6 {
adjud. (Kb6xa5) 30.68/15 2} 1-0
Parent - - By Uri Blass (*****) Date 2007-12-27 16:19
Note that 69...Kf8 is probably the losing mistake in the game and movei can find 69...Nf7 with more time but I think that 69...Nf7 is not an obvious move

Toga needs a minute to find it

6202: Rybka 2.3.2a 32-bit - Movei00_8_438, URI-AMD, Blitz:1'+1"
4k3/7P/1p3b2/p1p1n1pK/P1P2pP1/2P5/5B2/5B2 b - - 0 1


Analysis by Toga II 1.3 Beta1:

69...f4-f3 70.Bf2-e3
  =  (0.16)   Depth: 1/7   00:00:00
69...f4-f3 70.Bf2-e3 Ne5-f7
  ²  (0.54)   Depth: 2/7   00:00:00
69...Ke8-f7 70.Bf1-g2
  ²  (0.35)   Depth: 2/7   00:00:00
69...Ke8-f7 70.Bf2-g1 f4-f3 71.Bg1-e3
  =  (-0.10)   Depth: 3/7   00:00:00
69...Ke8-f7 70.Bf1-g2 f4-f3 71.Bg2-f1 Ne5-c6
  =  (-0.05)   Depth: 4/10   00:00:00
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Kg5-f4 Kf7-g6 73.g4-g5 Bh8-g7
  ³  (-0.52)   Depth: 5/14   00:00:00
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Kg5-f5 Kf7-e7 73.g4-g5 Ke7-f7 74.Kf5-e4
  ³  (-0.39)   Depth: 6/15   00:00:00  8kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 Ne5-g6 72.Bf1-g2 Bh8xc3 73.Kg5-f5 Kf7-g7
  ³  (-0.41)   Depth: 7/16   00:00:00  15kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 Ne5-g6 72.Bf1-g2 Bh8xc3 73.Kg5-f5 Bc3-d4 74.Bg2-d5+ Kf7-g7
  ³  (-0.31)   Depth: 8/18   00:00:00  29kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 Ne5-g6 72.Bf1-g2 Bh8xc3 73.Bg2-e4 Bc3-f6+ 74.Kg5-h5 Ng6-e7 75.g4-g5 Bf6-e5 76.g5-g6+ Kf7-e6
  ³  (-0.32)   Depth: 9/23   00:00:01  71kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Kg5-f5 Bh8-g7 73.g4-g5 Ne5-g6 74.Kf5-g4 Bg7xc3 75.Kg4xf3 Ng6-e5+ 76.Kf3-e3 Ne5-g4+ 77.Ke3-e2 Ng4xf2 78.Ke2xf2
  =  (-0.22)   Depth: 10/23   00:00:01  172kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Bf2-g3 Bh8-g7 73.Kg5-f5 Ne5-c6 74.Kf5-e4 Bg7xc3 75.Ke4xf3 Bc3-e5 76.Bg3-f2 Nc6-d4+ 77.Kf3-e4
  =  (-0.22)   Depth: 11/27   00:00:01  411kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 Ne5-g6 72.Bf1-d3 Bh8-f6+ 73.Kg5-h5 Ng6-e7 74.g4-g5 Bf6xc3 75.Kh5-g4 Bc3-e5 76.Bd3-e4 Kf7-e6 77.g5-g6 Ke6-d7 78.Bf2-e1
  =  (-0.16)   Depth: 12/27   00:00:01  689kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 Ne5-g6 72.Bf1-d3 Bh8-f6+ 73.Kg5-h5 Ng6-e7 74.Bf2-e1 Ne7-c6 75.Bd3-e4 Nc6-e5 76.Be1-f2 Bf6-g7 77.g4-g5 Kf7-e6 78.g5-g6 f4-f3 79.Kh5-g5
  =  (-0.19)   Depth: 13/28   00:00:01  1014kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Bf2-g3 Ne5-c6 73.Kg5-f4 Nc6-e5 74.Kf4-f5 Ne5-c6 75.Kf5-f4
  =  (0.00)   Depth: 14/31   00:00:02  2888kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Bf2-g3 Ne5-c6 73.Kg5-f4 Nc6-e5 74.Kf4-f5 Ne5-c6 75.Kf5-f4
  =  (0.00)   Depth: 15/32   00:00:06  7013kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Bf2-g3 Ne5-c6 73.Kg5-f4 Nc6-e5 74.Kf4-f5 Ne5-c6 75.Kf5-f4
  =  (0.00)   Depth: 16/36   00:00:11  11597kN
69...Ke8-d7 70.Bf1-g2 Kd7-e7 71.Bg2-d5 Ne5-d3 72.Bf2-g1 Nd3-b2 73.Bd5-c6 Nb2xc4 74.Bg1-f2 Ke7-e6 75.Bf2-e1 Nc4-e3 76.Be1-d2 Ke6-e5 77.Bc6-f3 Ke5-e6
  =  (-0.02)   Depth: 16/36   00:00:12  13108kN
69...Ke8-d7 70.Bf1-g2 Kd7-e7 71.Bg2-d5 Ne5-d3 72.Bf2-g1 Nd3-b2 73.Bd5-c6 Nb2xc4 74.Bg1-f2 Ke7-e6 75.Bf2-e1 Nc4-b2 76.Be1-d2 Nb2-d1 77.Bc6-e4 Nd1-e3 78.Kh5-g6
  =  (0.00)   Depth: 17/36   00:00:13  14414kN
69...Ke8-d7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Kg5-f5 Ne5-f7 73.g4-g5 Nf7-d6+ 74.Kf5-f4 Nd6-f7 75.Bf2-e3 Nf7-e5 76.Kf4-e4 Kd7-e7 77.Be3-f4 Ke7-d6 78.Bf1-h3 Bh8-g7 79.Bf4xe5+ Bg7xe5 80.Ke4xf3 Be5xc3 81.g5-g6 Bc3-d4 82.Kf3-e4 Kd6-e7
  ²  (0.27)   Depth: 18/47   00:00:41  46060kN
69...Ke8-f7 70.h7-h8Q Bf6xh8 71.Kh5xg5 f4-f3 72.Bf2-g3 Kf7-e6 73.Kg5-f4 Ke6-e7 74.g4-g5 Ne5-f7 75.Bg3-h4 Nf7-e5 76.Kf4-f5 Bh8-g7 77.g5-g6+ Ke7-f8 78.Bh4-g3 Ne5-c6 79.Kf5-g4 Bg7xc3 80.Kg4xf3 Kf8-g7 81.Bf1-d3 Nc6-e5+ 82.Bg3xe5+ Bc3xe5
  =  (0.15)   Depth: 18/47   00:00:53  58915kN
69...Ne5-f7 70.Bf1-g2 Nf7-e5 71.Bg2-f1
  =  (0.00)   Depth: 18/53   00:01:08  75286kN
69...Ne5-f7 70.Bf1-g2 Nf7-e5 71.Bg2-f1
  =  (0.00)   Depth: 19/53   00:01:09  76877kN
69...Ne5-f7 70.Bf1-g2 Nf7-e5 71.Bg2-f1
  =  (0.00)   Depth: 20/53   00:01:12  79786kN

(,  27.12.2007)
Parent - - By Uri Blass (*****) Date 2007-12-27 18:56
I decided to test against stronger opponent(Toga) at longer time control 5+5

Rybka won again

This time the game was longer
It seems that the 50 move rule pushed toga to blunder by 109...Be5 or later(I still did not check if 109...Be5 was a losing move but this move prevented simple draw by the 50 move rule).

My conclusion is that rybka had excellent practical chances to win the drawn position and it is pity that the rybka team destroyed it by agreeing to a draw too early

[Event "URI-AMD, Blitz:5'+5""]
[Site "URI-AMD"]
[Date "2007.12.27"]
[Round "2"]
[White "Rybka 2.3.2a 32-bit"]
[Black "Toga II 1.3 Beta1"]
[Result "1-0"]
[ECO "B01"]
[Annotator "0.00;-0.40"]
[PlyCount "283"]
[TimeControl "300+5"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 g6 6. Nb5 Qb6 7. c4 c6 8. Nc3
Bg7 9. Be2 O-O 10. O-O Rd8 11. Re1 Bg4 12. Na4 Qc7 13. Qb3 Nbd7 14. h3 Bxf3 15.
Bxf3 e5 16. dxe5 Nxe5 17. Be2 Ne4 18. Qc2 f5 19. Be3 c5 20. Nc3 Nxc3 21. bxc3
Rd7 22. f4 Bh6 23. g3 Rad8 24. Rad1 b6 25. Bf2 Rxd1 26. Rxd1 Rxd1+ 27. Qxd1 Nf7
28. Bf3 Bg7 29. Be1 Bf6 30. Qd5 Kg7 31. Qe6 Qd6 32. Qe8 Qd8 33. Qxd8 Nxd8 34.
Bd2 Kf7 35. Bd5+ Ke7 36. Kf1 Ne6 37. Ke2 h6 38. Kf3 Kd6 39. Be1 g5 40. fxg5
hxg5 41. Bd2 Ke5 42. Bc1 {adjud. Draw accepted Both last book move} Nc7 {
-0.40/18 14} 43. Bb7 {0.00/19 23} Kd6 {(Nc7-e6) -0.32/18 21} 44. Bd2 {
0.00/18 19} Ke7 {(Nc7-e6) -0.31/18 24} 45. Be1 {0.01/17 29} Ne6 {-0.30/17 19}
46. Bc8 {(Bb7-d5) 0.05/17 14} Kd6 {-0.30/18 19} 47. a3 {(h3-h4) 0.01/18 19} Ke5
{(Kd6-e7) -0.37/16 12} 48. Bb7 {(h3-h4) 0.01/19 39} Be7 {(Ke5-d6) -0.36/16 16}
49. Bc6 {(Be1-d2) 0.02/17 38} Bf8 {(g5-g4+) -0.38/16 15} 50. a4 {
(Kf3-e2) 0.02/18 42} Bg7 {-0.39/17 18} 51. Bb7 {0.02/19 16} Nf8 {
(g5-g4+) -0.35/17 28} 52. Bd2 {0.05/18 17} Bh6 {-0.34/17 12} 53. Ke2 {
0.03/19 14} Kf6 {(Nf8-g6) -0.35/17 13} 54. Bd5 {0.03/17 15} Ng6 {-0.36/19 17}
55. h4 {0.00/18 11} f4 {-0.35/19 10} 56. hxg5+ {0.00/18 4} Bxg5 {-0.35/19 19}
57. Be1 {0.00/20 6} Kf5 {-0.35/20 15} 58. Ba8 {(Be1-f2) 0.00/20 12} fxg3 {
(Ng6-e5) -0.35/18 15} 59. Bxg3 {0.00/17 4} Ne5 {-0.35/19 12} 60. Bd5 {0.00/19 3
} Bf6 {(Bg5-f4) -0.35/20 15} 61. Kd2 {0.00/20 11} Kg4 {(Bf6-g5+) -0.35/19 12}
62. Bh2 {(Bg3xe5) 0.00/21 12} Kg5 {(Bf6-g5+) -0.35/19 14} 63. Kc2 {
(Bh2-g1) 0.00/20 12} Kf5 {-0.19/18 16} 64. Kb3 {(a4-a5) 0.00/19 14} a5 {
(Bf6-e7) -0.22/17 8} 65. Bb7 {0.06/20 9} Bd8 {(Bf6-g5) -0.27/19 11} 66. Bc8+ {
0.06/21 10} Kf6 {(Kf5-e4) -0.25/22 8} 67. Bg3 {0.06/21 14} Bc7 {
(Bd8-e7) -0.25/22 10} 68. Bh4+ {0.10/19 10} Kf7 {(Kf6-g6) -0.25/22 13} 69. Bb7
{0.06/20 12} Kg6 {-0.26/22 12} 70. Be4+ {(Bh4-e7) 0.06/22 14} Kh5 {-0.31/23 11}
71. Be7 {0.06/22 4} Kg4 {-0.31/23 12} 72. Bd5 {(Be4-b7) 0.06/23 17} Kf5 {
-0.28/22 12} 73. Bb7 {0.06/23 9} Nf7 {(Kf5-f4) -0.31/22 12} 74. Bc8+ {
(Bb7-d5) 0.00/20 11} Ke5 {(Kf5-f4) -0.33/22 9} 75. Bh4 {0.06/23 11} Kf4 {
-0.31/22 10} 76. Kc2 {0.03/22 7} Bd8 {(Nf7-g5) -0.31/22 11} 77. Be1 {0.06/19 2}
Nd6 {(Bd8-f6) -0.30/21 18} 78. Be6 {0.07/18 2} Ne4 {-0.30/21 6} 79. Kd3 {
0.07/20 2} Ng5 {-0.31/22 9} 80. Bd5 {(Be1-d2+) 0.06/21 12} Nf3 {-0.33/21 10}
81. Bf2 {(Be1-d2+) 0.06/20 4} Ne5+ {-0.34/20 10} 82. Ke2 {(Kd3-c2) 0.06/22 13}
Kf5 {(Ne5-g6) -0.31/20 9} 83. Be1 {(Bf2-g3) 0.06/19 4} Be7 {
(Bd8-g5) -0.31/20 10} 84. Bg3 {0.01/20 8} Bg5 {-0.31/21 9} 85. Bg8 {
(Ke2-d1) 0.00/21 7} Bf6 {(Bg5-f4) -0.31/19 7} 86. Kd1 {(Bg8-d5) 0.00/19 6} Nd7
{(Bf6-g5) -0.32/19 8} 87. Kc2 {0.00/20 7} Be5 {(Bf6-g5) -0.31/21 6} 88. Be1 {
(Bg3-f2) 0.00/21 10} Bd6 {(Be5-f6) -0.31/20 9} 89. Bd5 {0.06/21 9} Kg5 {
(Bd6-f4) -0.30/20 15} 90. Kd3 {0.06/20 8} Nf6 {(Kg5-f5) -0.28/20 23} 91. Ke2 {
(Bd5-e6) 0.06/19 11} Kf5 {(Bd6-f4) -0.29/18 8} 92. Bb7 {0.16/18 6} Bh2 {
(Nf6-e4) -0.23/18 15} 93. Kf3 {0.19/19 13} Ke6 {-0.23/19 9} 94. Bd2 {
(Bb7-c8+) 0.21/18 4} Kd7 {(Nf6-e8) -0.24/19 8} 95. Ke2 {0.22/19 7} Ke7 {
(Kd7-e6) -0.22/18 15} 96. Bg2 {(Ke2-d3) 0.22/20 15} Kf7 {(Ke7-d6) -0.24/18 7}
97. Kf3 {(Bd2-e3) 0.22/20 6} Ke6 {(Kf7-e7) -0.23/19 11} 98. Bh3+ {0.19/20 19}
Ke7 {(Ke6-d6) -0.23/22 7} 99. Bf5 {(Kf3-e3) 0.19/19 11} Kd6 {
(Nf6-d7) -0.23/20 4} 100. Bd3 {(Bf5-h3) 0.19/20 11} Ke5 {(Kd6-e7) -0.23/20 5}
101. Bg5 {0.21/21 3} Ke6 {-0.22/21 8} 102. Bf1 {0.21/20 2} Be5 {-0.22/20 7}
103. Bd2 {(Bf1-h3+) 0.19/20 3} Kd7 {(Be5-h2) -0.23/21 7} 104. Be1 {
(Bf1-g2) 0.21/19 9} Ke7 {(Kd7-e6) -0.23/19 4} 105. Bg2 {(Be1-d2) 0.19/20 6} Bb8
{(Ke7-e6) -0.23/18 4} 106. Bd2 {(Bg2-f1) 0.19/20 7} Bc7 {(Bb8-e5) -0.22/20 7}
107. Bf1 {(Bg2-h3) 0.19/18 5} Kf7 {(Bc7-d6) -0.22/19 7} 108. Bh3 {
(Bf1-g2) 0.10/19 11} Kg6 {(Bc7-e5) -0.18/18 8} 109. Bc8 {(Kf3-e3) 0.00/15 9}
Be5 {(Bc7-d8) -0.02/17 7} 110. Bf4 {(Kf3-e3) 0.52/18 7} Bxf4 {
(Be5xc3) 0.00/20 5} 111. Kxf4 {0.55/13 0} Kf7 {0.00/22 7} 112. Ke5 {0.76/19 2}
Ke7 {0.00/20 7} 113. Bf5 {(Bc8-h3) 0.68/17 0} Nh5 {0.84/20 4} 114. Kd5 {
1.16/20 2} Ng3 {1.07/21 6} 115. Bg4 {1.05/18 0} Kf6 {(Ke7-d8) 0.99/22 7} 116.
Bd1 {1.30/18 2} Ke7 {1.49/23 5} 117. Kc6 {1.17/16 0} Ne4 {1.49/22 6} 118. Kxb6
{1.83/21 2} Kd7 {(Ne4xc3) 2.66/22 7} 119. Bc2 {(Kb6xa5) 2.83/23 5} Nxc3 {
2.67/20 4} 120. Kxa5 {2.56/21 0} Kc6 {2.92/25 6} 121. Ka6 {2.98/22 2} Kc7 {
3.35/25 5} 122. a5 {3.15/21 1} Kc6 {3.60/25 5} 123. Bf5 {(Bc2-d3) 3.27/20 1}
Kc7 {3.65/24 5} 124. Bg4 {(Bf5-g6) 3.30/21 1} Na2 {3.66/24 4} 125. Kb5 {
(Bg4-f3) 3.48/20 1} Kb7 {3.69/23 5} 126. a6+ {3.48/22 1} Ka7 {3.77/25 6} 127.
Bc8 {3.70/24 3} Nc1 {(Na2-c3+) 3.99/24 6} 128. Kxc5 {3.70/24 1} Nd3+ {4.05/25 6
} 129. Kb5 {(Kc5-c6) 3.70/25 2} Nf4 {4.06/25 5} 130. Bb7 {(c4-c5) 3.81/25 2}
Ne6 {4.06/26 6} 131. Kc6 {(c4-c5) 5.09/25 5} Nf4 {(Ne6-d4+) 4.10/22 6} 132. Kd6
{(c4-c5) 5.09/17 8} Ne2 {(Nf4-h5) 13.52/23 24} 133. c5 {5.28/19 4} Nc3 {
13.52/23 6} 134. Kd7 {5.28/18 2} Kb8 {13.81/22 6} 135. Bf3 {5.28/19 1} Ka7 {
(Nc3-a4) 14.23/19 6} 136. c6 {11.21/16 3} Na4 {14.42/18 4} 137. Be2 {11.21/16 1
} Nc5+ {23.85/19 22} 138. Kd6 {11.21/17 16} Kb6 {(Nc5-e4+) 14.67/17 5} 139. c7
{14.75/14 6} Ne4+ {14.82/15 3} 140. Ke5 {14.78/15 7} Kxc7 {14.78/15 5} 141.
Kxe4 {14.78/14 3} Kb6 {(Kc7-c6) #10/18 5} 142. Kd5 {adjud. 14.96/12 5} 1-0
Parent - - By Razor (****) Date 2007-12-27 19:51
I disagree Uri; you have not replicated the likely outcome from the 'real' game for so many reasons, not least of which is that fact that you're not using the same software for black, possibly white as well.  How you can justify 'excellent winning chances from a drawn position' based on your efforts is a stretch too far for me.  I'm with the Rybka team on this one, a draw is the most likely outcome.
Parent - - By Banned for Life (Gold) Date 2007-12-27 19:57
A draw being the correct and most probable outcome is not the issue here. The question is whether this would be the result say 99.9% of the time. I think Uri makes an excellent argument that there is at least one other possible outcome (a Rybka victory). A blunder by Rybka with its positive eval and the approach of the 50-move rule can also not be ruled out.

Alan
Parent - - By Harvey Williamson (*****) Date 2007-12-27 20:16
There is a 4th option - Sebi, Hans and Jeroen were desperate for a beer.
Parent - - By Banned for Life (Gold) Date 2007-12-27 20:37
Harvey,

I was born at night, but not last night. :-) I am 100% certain that your explanation is the correct one. But I agree with Uri that the rules for a computer tournaments should insist that games be played out. I think at the point the game was adjudicated, there was still a possibility for all outcomes.

Is there some prohibition against having a few beers during the game? While the engines are battling it out over the board, the operators could be having a different type of competition! :-)

Regards,
Alan
Parent - - By Harvey Williamson (*****) Date 2007-12-27 20:45
Hi Alan,

I think in all these tournaments you have to play within the rules as they are. Sebi could have done an 'Erdo' and played on hoping that Rybka would blunder as it did in Mexico. I seem to remember Erdo was criticised for his decision to play on. Whatever you do someone is not happy.

I remember discussing this with Jeroen in Leiden we decided that doing an 'Erdo' was playing on when it seemed pointless. Being 'Jeroened' was suffering a book loss.

As for the Beer i don't know if its available in the playing hall in Paderborn - it certainly is in leiden :)

Happy New Year,

Harvey
Parent - - By Banned for Life (Gold) Date 2007-12-27 20:57
I think in all these tournaments you have to play within the rules as they are.

I agree that this is a rules issue and that drawing this game was perfectly consistent with the rules.

I seem to remember Erdo was criticised for his decision to play on.

This event made Erdo my hero. What is there to criticize? He exploited Rybka's tendency to throw away drawn endgames. I don't understand this at all...

Regards,
Alan
Parent - By Harvey Williamson (*****) Date 2007-12-27 21:00 Edited 2007-12-27 21:03
I seem to remember Erdo was criticised for his decision to play on.

This event made Erdo my hero. What is there to criticize? He exploited Rybka's tendency to throw away drawn endgames. I don't understand this at all...


Not criticised by me - except for the electricity bill for my Oct the game went on forever ;-)

I will pass your compliments to Erdo!
Parent - - By Uri Blass (*****) Date 2007-12-27 22:17
I agree that erdo did nothing wrong but I do not think that it is a general tendency of rybka to throw drawn endgame.
The tendency is simply a tendency of the engine that believes that it has better position inspite of the fact that the position is objectively draw.

Rybka believed that she had a better position against zappa.
This situation today  was the opposite situation because only hiarcs believed that it has a better position and rybka evaluated the position as 0.00.

Uri
Parent - By Banned for Life (Gold) Date 2007-12-27 22:36 Edited 2007-12-27 22:42
I've collected hundreds of games between Zappa Mexico and Rybka 2.3.2a at 16-0 on the CB server with Zappa Mexico playing on a slightly overclocked quad (3.24 GHz) and Rybka playing on a variety of machines. Based on observation of this admittedly small sampling of games, it seems that Rybka is more likely to get a suboptimal endgame result due to:

1) Being less likely to hold onto a fortress,
2) Misplaying a KP endgame, and
3) Misplaying more complex endgames with each side having a piece in addition to pawns.

The problems have all been documented before. They include cases of:

1) Inability to properly score the wrong colored bishop in rook pawn endgames,
2) Funny passed pawn valuations,
3) Strange rook-pawn endgame play, and
4) Insufficient respect for passed pawn pairs.

Of course all engines have occasional problems with endgames, but I think this is more of an issue with Rybka, so if I was in the position of the Hiarcs team I would have wanted to see the game played out, especially knowing that Jeroen was going to end up with the girl anyway. :-)

Regards,
Alan
Parent - By Graham Banks (*****) Date 2007-12-27 21:24
"Whatever you do someone is not happy."

Very true.
Parent - - By NATIONAL12 (Gold) Date 2007-12-27 22:19
on all the reports i read erdo was congratulated, for having the foresite to carry on.this included the whole rybka team.
Parent - - By Harvey Williamson (*****) Date 2007-12-27 22:26
Then as I was temporarily part of the team I also accept the congratulations :)

But I was also running the Broadcast on Playchess where various comments were made about how stupid it was to play on etc..... Until the method in his 'madness' was reviled :)
Parent - By NATIONAL12 (Gold) Date 2007-12-27 22:29
point taken.
Parent - - By Lukas Cimiotti (Bronze) Date 2007-12-27 21:23
I heard, it was not the beer, but the girl, who serves it ;)
Parent - - By Harvey Williamson (*****) Date 2007-12-27 21:25 Edited 2007-12-27 21:29
shhhhh. But when I spoke with sebi on the phone he said Jeroen had vanished!?
Parent - - By Banned for Life (Gold) Date 2007-12-27 21:38
Ah, OK, so the Rybka team was victorious after all!
Parent - By Harvey Williamson (*****) Date 2007-12-27 21:42
yep they(Jeroen) got the Girl. Sebi and Hans went home alone and had pickled Rybka for supper.
Parent - - By Venator (Silver) Date 2007-12-28 08:11
Actually, it is a fifth option: both Rybka teammembers have become ill. It was rather disastrous yesterday, both Hans and I
struggled towards the end of the day. It is not easy to declare the game a draw so quickly, but when you almost throw up
and want to go to bed, this seemed the most obvious decision for us. In a normal state we would have played on, but I
don't think this would have made a change in the result. This is not blitz and with both searching 25-30 plies I am 99,99%
sure it would have been a draw anyway.

In any case, today we feel better than yesterday, so lets hope for some Rybka fireworks.

Jeroen
Parent - - By Uri Blass (*****) Date 2007-12-28 09:58
I hope that you will feel better and I can now understand the reason that you accepted a draw.

I think that 99.99% confidence is too much(time control is 2 hours for all the game and when the losing error can be also at move 100 or later it can be practically blitz).

Uri
Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka in Paderborn
1 2 3 4 5 Previous Next  

Powered by mwForum 2.27.4 © 1999-2012 Markus Wichitill