Request for games lost by Rybka to clones

[kgburcham]

Could any of you post some games lost by Rybka to clones.
I would like to follow some of these games.
I am looking for games where Rybka lost not because of book.
Of course most of these hi-level games above 3000+ that I have followed, it is difficult to pinpoint a bad move. Sometimes one program will gain .2 per move and end up in a winning position. Sometimes one King will become more exposed than the other and not able to defend later. Sometimes one side doesnt even realize it is playing into a pawn winning endgame.

Anywho---MerryChristmas to the code heads and programmers that post regularly here.
Oh hell I am in a good mood---Merry Christmas to the guy that sold me a $120 smp program and stole my kns.

kgburcham

[Dr.Wael Deeb]

Could any of you post some games lost by Rybka to clones.
I would like to follow some of these games.
I am looking for games where Rybka lost not because of book.
Of course most of these hi-level games above 3000+ that I have followed, it is difficult to pinpoint a bad move. Sometimes one program will gain .2 per move and end up in a winning position. Sometimes one King will become more exposed than the other and not able to defend later. Sometimes one side doesnt even realize it is playing into a pawn winning endgame.

Anywho---MerryChristmas to the code heads and programmers that post regularly here.
Oh hell I am in a good mood---Merry Christmas to the guy that sold me a $120 smp program and stole my kns.

kgburcham

[Taner Altinsoy]

If you consider Robbolito a clone here is one loss I find interesting. It's quite rare these days to see Rybka get mated in 46 moves in a game which might be considered a miniature in computer chess standards. I will be posting many more games (about 200 blitz and about 100 60m games with ponder on and off) of Rybka vs Robbolito in long time controls (mainly 60 m + 1 min/move). The Hardware is AMD X2 4200, 412MB hash, rybka book, Fritz 11 UI engine match feature.

In shorter time controls Robbolito just annihilates rybka. In some matches 20 to 50 games, the elo difference is sometimes as high as 150 elo. In long time controls the difference is around 30-60 elo in my opinion.

I read somewhere that rybka is better in middle game but Robbolito is better in end game. This is partly true I think. Robbolito is indeed much better in endgame but I found out it usually out calculates rybka throughout middle game. In the matches ending with draw usually it is Rybka that is chasing the draw. Or robbolito usually equalises the position in 5-10 moves even if it starts the game with -0.50 after opening moves. This is whether due to engine being faster or having more chess knowledge is beyond me. Also Rybka seems to run into time trouble even in long games by sometimes taking as long as 19 mins for one move in 60m + 1m games.

I will share more games and thoughts about this popular topic soon.

Taner Altinsoy


[Event "AMD 60' + 1' ponder on rybka book, Blit"]
[Site "TT"]
[Date "2009.12.23"]
[Round "2"]
[White "RobboLito 0.085e4 w32"]
[Black "Rybka 3 1-cpu 32-bit"]
[Result "1-0"]
[ECO "E16"]
[Annotator "0.33;0.31"]
[PlyCount "91"]
[TimeControl "3600+60"]

{AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ 2210 MHz W=22.2 ply; 677kN/s;
Rybka3.ctg B=13.8 ply; 19kN/s; Rybka3.ctg} 1. d4 {[%eval 0,0] [%emt 0:00:00]}
Nf6 {[%eval 0,0] [%emt 0:00:00]} 2. c4 {[%eval 0,0] [%emt 0:00:00]} e6 {[%eval
0,0] [%emt 0:00:00]} 3. Nf3 {[%eval 0,0] [%emt 0:00:00]} b6 {[%eval 0,0] [%emt
0:00:00]} 4. g3 {[%eval 0,0] [%emt 0:00:00]} Bb7 {[%eval 0,0] [%emt 0:00:00]}
5. Bg2 {[%eval 0,0] [%emt 0:00:00]} Bb4+ {[%eval 0,0] [%emt 0:00:00]} 6. Bd2 {
[%eval 0,0] [%emt 0:00:00]} a5 {[%eval 0,0] [%emt 0:00:00]} 7. O-O {[%eval 0,0]
[%emt 0:00:00]} h6 {Both last book move [%eval 0,0] [%emt 0:00:00]} 8. Bf4 {
[%eval 33,20] [%emt 0:03:38]} Be7 {(0-0) [%eval 31,15] [%emt 0:03:59]} 9. Nc3 {
[%eval 47,21] [%emt 0:04:48]} O-O {[%eval 36,16] [%emt 0:00:56]} 10. Qc2 {
[%eval 47,20] [%emt 0:00:00]} Nh5 {(Nc6) [%eval 33,15] [%emt 0:06:12]} 11. Bd2
{(Be3) [%eval 49,20] [%emt 0:02:48]} Nc6 {(Nf6) [%eval 35,14] [%emt 0:02:45]}
12. a3 {(e4) [%eval 60,21] [%emt 0:04:43]} Nf6 {[%eval 48,14] [%emt 0:02:59]}
13. Rfd1 {(d5) [%eval 60,20] [%emt 0:00:00]} Re8 {(d5) [%eval 46,14] [%emt 0:
05:45]} 14. e4 {(Bf4) [%eval 78,21] [%emt 0:02:07]} d6 {[%eval 51,15] [%emt 0:
01:50]} 15. d5 {[%eval 85,22] [%emt 0:00:00]} exd5 {[%eval 78,16] [%emt 0:08:
22]} 16. exd5 {[%eval 84,23] [%emt 0:00:00]} Nb8 {(Na7) [%eval 78,17] [%emt 0:
01:39]} 17. Re1 {(Nd4) [%eval 89,21] [%emt 0:02:38]} Qd7 {(Na6) [%eval 78,16]
[%emt 0:02:40]} 18. Nd4 {[%eval 87,23] [%emt 0:04:10]} Na6 {[%eval 76,16]
[%emt 0:00:00]} 19. Nf5 {(Ncb5) [%eval 87,22] [%emt 0:00:00]} Nc5 {(Bf8)
[%eval 82,14] [%emt 0:01:49]} 20. Nb5 {[%eval 104,20] [%emt 0:02:51]} Bf8 {
[%eval 101,14] [%emt 0:02:34]} 21. Bh3 {[%eval 92,21] [%emt 0:00:49]} Qd8 {
[%eval 94,15] [%emt 0:02:06]} 22. Rxe8 {[%eval 99,21] [%emt 0:00:00]} Nxe8 {
[%eval 94,16] [%emt 0:01:24]} 23. Re1 {[%eval 95,22] [%emt 0:04:24]} c6 {
[%eval 92,16] [%emt 0:00:00]} 24. dxc6 {[%eval 93,22] [%emt 0:08:31]} Bxc6 {
[%eval 90,17] [%emt 0:00:00]} 25. Bc3 {[%eval 93,22] [%emt 0:07:23]} Bb7 {
(Bxb5) [%eval 97,16] [%emt 0:01:44]} 26. Bg2 {[%eval 100,19] [%emt 0:02:20]}
Bxg2 {[%eval 98,16] [%emt 0:01:09]} 27. Kxg2 {[%eval 100,17] [%emt 0:00:00]}
Rc8 {(Nc7) [%eval 91,16] [%emt 0:11:14]} 28. Ne3 {(Qe2) [%eval 102,19] [%emt 0:
05:59]} Nc7 {(Ne6) [%eval 95,15] [%emt 0:02:01]} 29. Nxc7 {(a4) [%eval 107,21]
[%emt 0:01:31]} Qxc7 {(Rxc7) [%eval 94,15] [%emt 0:01:15]} 30. Nd5 {[%eval 116,
21] [%emt 0:01:36]} Qc6 {[%eval 102,16] [%emt 0:02:12]} 31. Qf5 {[%eval 135,22]
[%emt 0:00:00]} Rb8 {[%eval 102,16] [%emt 0:07:55]} 32. f3 {[%eval 294,22]
[%emt 0:07:57]} Qa4 {[%eval 201,14] [%emt 0:00:00]} 33. g4 {(b4) [%eval 266,19]
[%emt 0:00:00]} b5 {[%eval 270,13] [%emt 0:05:01]} 34. g5 {(cxb5) [%eval 314,
22] [%emt 0:07:52]} b4 {(Qb3) [%eval 363,12] [%emt 0:04:56]} 35. g6 {(axb4)
[%eval 543,18] [%emt 0:03:24]} f6 {[%eval 510,13] [%emt 0:02:41]} 36. Nxf6+ {
[%eval 543,16] [%emt 0:00:00]} Kh8 {[%eval 479,12] [%emt 0:03:15]} 37. Qd5 {
[%eval 572,20] [%emt 0:00:00]} Be7 {(Qc2+) [%eval 546,13] [%emt 0:02:34]} 38.
Qf7 {(Rxe7) [%eval 1841,17] [%emt 0:06:50]} Qc2+ {[%eval 1082,9] [%emt 0:02:06]
} 39. Kg3 {[%eval 1841,15] [%emt 0:00:00]} Nd3 {[%eval 1082,9] [%emt 0:01:21]}
40. Ng4 {[%eval 2778,19] [%emt 0:00:43]} Qxc3 {(Qg2+) [%eval 1185,10] [%emt 0:
00:57]} 41. Rxe7 {(bxc3) [%eval 32756,30] [%emt 0:01:26]} Qe1+ {[%eval 32756,8]
[%emt 0:00:01]} 42. Rxe1 {[%eval 0,30] [%emt 0:00:00]} Ne5 {[%eval 32756,4]
[%emt 0:00:00]} 43. Nxe5 {[%eval 0,28] [%emt 0:00:00]} a4 {(Rg8) [%eval 32758,
3] [%emt 0:00:00]} 44. Nd7 {[%eval 32762,25] [%emt 0:01:19]} h5 {(Ra8) [%eval
32762,3] [%emt 0:00:00]} 45. Re8+ {(Nxb8) [%eval 32764,25] [%emt 0:00:33]} Rxe8
{[%eval 32764,3] [%emt 0:00:00]} 46. Qxe8# {[%eval 32766,55] [%emt 0:00:00]}
1-0

[alpha123]

Merry Christmas to the guy that sold me a $120 smp program and stole my kns.

lol.

If you consider Robbolito a clone, games aren't too hard to find, just search around. Here are some with an old version of Robbo. (Robbolite 0.085c5)