Rybka (Computer)
Number of games in database: 180
Years covered: 2005 to 2013
Overall record: +120 -18 =32 (80.0%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.
      10 exhibition games, odds games, etc. are excluded from this statistic.

MOST PLAYED OPENINGS
With the White pieces:  Sicilian (23)      B90 B97 B80 B91 B22  Ruy Lopez (19)      C84 C92 C99 C76 C88  Ruy Lopez, Closed (11)      C84 C92 C99 C88 C96  Sicilian Najdorf (11)      B90 B97 B91  Petrov (6)      C42 C43  Semi-Slav (5)      D43 D45 D46 D44	With the Black pieces:  Sicilian (30)      B51 B92 B28 B47 B40  Semi-Slav (8)      D47 D43 D44  French Defense (7)      C16 C03 C18 C11 C14  Sicilian Najdorf (6)      B92 B90 B96 B98  Grunfeld (5)      D91 D85 D78 D97 D79  Sicilian Taimanov (4)      B47 B48 B49

NOTABLE GAMES: [what is this?]
   Rybka vs Shredder, 2009 1-0
   Stockfish vs Rybka, 2009 0-1
   Rybka vs Shredder, 2007 1-0
   The King vs Rybka, 2006 0-1
   Rybka vs Diep, 2007 1-0
   Rybka vs Deep Sjeng, 2009 1-0
   Rybka vs Pandix, 2010 1-0
   Deep Junior vs Rybka, 2010 0-1
   Crafty vs Rybka, 2006 0-1
   Rybka vs Ehlvest, 2007 1-0

GAME COLLECTIONS: [what is this?]
   Computer Chess Games by wanabe2000
   Computer - GM games 2003-2007 by biglo
   Brilliancies by computers by ryanpd
   nTCEC Computer Chess Tournament by shoshonte
   Odds games #3 by WhiteRook48

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RYBKA (COMPUTER) (born 2004) Czech Republic [what is this?] Rybka (Czech for "little fish") is a computer chess engine designed by IM Vasik G Rajlich. It supports both single processor and SMP systems. Iweta Radziewicz Rajlich is the main tester & Hans van der Zijden is one of her operators. Jeroen Noomen & Jiri Dufek co-authored her opening book. At the WCCC 2006 (2006), Rybka, playing under the name Rajlich, tied for 2nd place with Shredder (Computer), and behind the champion, Junior (Computer). Rybka won the 15th World Computer Chess Championship in Amsterdam, 2007 and the 16th World Computer Chess Championship in Beijing, September 28th to October 5th 2008 with 8.0/9 (+7 -0 =2). During 2009-10, she also became the World Computer Speed Chess Champion. In 2011, the International Computer Games Association (ICGA) ruled that Raljich had plagiarized two other programs, Crafty and Fruit, disqualified him for life from competing in the World Computer Chess Championship and all other ICGA events, and stripped Rybka of the championship titles it had won in 2006 through 2010.

page 1 of 8; games 1-25 of 180  Game   Result Moves Year Event/Locale Opening 1. Rybka vs Shredder ½-½ 57 2005 IPCCC B90 Sicilian, Najdorf 2. Rybka vs Gandalf 1-0 46 2005 ? B12 Caro-Kann Defense 3. Spike vs Rybka 1-0 69 2005 15. IPCCC E39 Nimzo-Indian, Classical, Pirc Variation 4. Zappa vs Rybka 0-1 77 2005 IPCCC E12 Queen's Indian 5. Rybka vs Jonny 1-0 21 2005 Blitz:110' C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 6. Ikarus vs Rybka 0-1 57 2005 IPCCC B00 Uncommon King's Pawn Opening 7. Rybka vs Argonaut 1-0 37 2005 IPCCC C68 Ruy Lopez, Exchange 8. Shredder vs Rybka 0-1 48 2006 26th Dutch CC B47 Sicilian, Taimanov (Bastrikov) Variation 9. Rybka vs Deep Gandalf 1-0 57 2006 6th International CSVN Tournament C42 Petrov Defense 10. Rybka vs Jonny 1-0 52 2006 Paderborn Computer Championship C42 Petrov Defense 11. R Felgaer vs Rybka   0-1 38 2006 Copa Entel , B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack 12. Rybka vs Diep 1-0 58 2006 WCCC 2006 B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation 13. Ikarus vs Rybka 0-1 71 2006 WCCC 2006 B40 Sicilian 14. The Baron vs Rybka   0-1 69 2006 26th Dutch CC A46 Queen's Pawn Game 15. IsiChess vs Rybka 0-1 37 2006 6th International CSVN Tournament A57 Benko Gambit 16. Junior vs Rybka ½-½ 40 2006 WCCC 2006 B48 Sicilian, Taimanov Variation 17. Shredder vs Rybka 0-1 41 2006 WBEC13 Premier Division, C50 Giuoco Piano 18. Rybka vs Loop 1-0 56 2006 26th Dutch CC B90 Sicilian, Najdorf 19. Shredder vs Rybka 0-1 44 2006 Rybka 2.2f mp testing 2 E15 Queen's Indian 20. Argonaut vs Rybka 0-1 42 2006 6th International CSVN Tournament B50 Sicilian 21. Diep vs Rybka 0-1 49 2006 Paderborn Computer Championship D79 Neo-Grunfeld, 6.O-O, Main line 22. Rybka vs E Cordova   ½-½ 74 2006 Copa Entel , B25 Sicilian, Closed 23. PARSOS vs Rybka 0-1 68 2006 WCCC 2006 D47 Queen's Gambit Declined Semi-Slav 24. Rybka vs FIBChess 1-0 30 2006 WCCC 2006 B80 Sicilian, Scheveningen 25. Rybka vs Fruit 1-0 49 2006 26th Dutch CC D45 Queen's Gambit Declined Semi-Slav  page 1 of 8; games 1-25 of 180

< Earlier Kibitzing  · PAGE 50 OF 79 ·  Later Kibitzing> Aug-17-07    ahmadov: Another great result by Rybka - it wins Fischerandom chess computer championship this year... Congratulations to the Rybka team! Aug-17-07    ahmadov: <Brown: Rybka is an "it," not a she.> No, it is "she"... Aug-18-07    Whitehat1963: Speaking of computers. Take a look at this article. Fascinating stuff: http://www.csmonitor.com/2007/0808/... Sep-03-07    Brown: <ahmadov> Is "she" a good kisser? Sep-09-07    minasina: Wikipediassa Chess_engine_rating_lists: http://en.wikipedia.org/wiki/Chess_... Sep-19-07    sanyas: <From 20th to 27th of September Mexico will host a Computer match between the two strongest chess programs of the world, played during the Final of the World Chess Championship among humans. The program Rybka (World Computer Chess Champion 2007) will play against Zappa (World Computer Chess Champion 2005, and vice champion in 2007).> http://rybkaforum.net/cgi-bin/rybka... Well that came out of the blue! Sep-22-07    JointheArmy: Congradulations Zappa, it won twice against Rybka today. Here's the win with black. click for larger view Sep-22-07    notyetagm: <RYBKA EVAL>, please, for the two attacking FEN diagrams that I just posted in the forum for the WCC game Svidler vs Kramnik, 2007. Thanks. Or should I be asking for a <ZAPPA EVAL>? :-) Sep-22-07    notyetagm: <JointheArmy: Congradulations Zappa, it won twice against Rybka today.> What happened? I don't think Rybka had lost two games all year and now it loses back-to-back games? Wow. Sep-22-07    JointheArmy: <notyetagm> Sign into playchess.com as a guest and look in the broadcast room. It shows both losses to Zappa white and black. I can't post the pgns for some reason though. Sep-22-07    notyetagm: <JointheArmy> Thanks. Sep-22-07    Marmot PFL: Maybe rybka was overconfident from too many easy wins against humans. Sep-22-07    Aspirador: <Rybka-Zappa> Is there a link for game #4, can only find #3 on the internet. Sep-22-07    Hesam7: <Marmot PFL: Maybe rybka was overconfident from too many easy wins against humans.> No it was Kramnik's day off. Sep-22-07    acirce: Wow, game 4 is computer chess at its dumbest. http://rybkaforum.net/cgi-bin/rybka... Sep-23-07    chessamateur: I hope Rybka losses to Zappa. Some humility is badly needed for IM Rajlich. Sep-23-07    notyetagm: <chessamateur: I hope Rybka losses to Zappa. Some humility is badly needed for IM Rajlich.> True, but a Rybka loss might motivate him to make his program much, much stronger than it currently is. Sep-23-07    Marmot PFL: Both computers play both sides of the closed Ruy Lopez, which doesn't seem to suit either one's style. Strange too since Rajlich was always a Sicilian player. Sep-23-07    notyetagm: Any results from today's Rybka-Zappa games? Thanks Sep-23-07    Aspirador: Check out http://www.chessmexico.com.mx/chall... Sep-23-07    Aspirador: Zappa wins game #5! Rybka is collapsing in the match just like a human being. Sep-23-07    notyetagm: <Aspirador: Zappa wins game #5! Rybka is collapsing in the match just like a human being.> Holy @#$%! Rybka has lost 3(!) games in a row! Sep-23-07    chessamateur: The fish is being fried (or Zapped)! Looks like IM Rajlich might be eating crow soon! Sep-24-07    notyetagm: Draw today, so Rybka stops the bleeding with 3(!) consecutive losses. [Event "Mexico"] [Site "?"] [Date "2007.09.24"] [Round "6"] [White "Rybka, ChessBase"] [Black "Zappa Mexico X64"] [Result "1/2-1/2"] [ECO "C92"] [PlyCount "103"] [EventDate "2007.??.??"] [TimeControl "3600+10"] Sep-24-07    notyetagm: 384M, ZapM X lack.ctg, ZAA 1. e4 0 e5 /0 0 2. Nf3 8 Nc6 /0 0 3. Bb5 7 a6 /0 0 4. Ba4 9 Nf6 /0 0 5. O-O 8 Be7 /0 0 6. Re1 11 b5 /0 0 7. Bb3 8 d6 /0 0 8. c3 8 O-O /0 0 9. h3 8 Bb7 /0 0 10. d4 10 Re8 /0 0 11. Nbd2 12 Bf8 /0 0 12. a4 9 h6 /0 0 13. Bc2 8 exd4 /0 0 14. cxd4 20 Nb4 /0 0 15. Bb1 7 c5 /0 0 16. d5 7 Nd7 /0 0 17. Ra3 10 c4 /0 0 18. axb5 8 axb5 /0 0 19. Nd4 8 Qb6 /0 0 20. Nf5 9 Ne5 /0 0 21. Rg3 9 g6 /0 0 22. Nf3 8 Ned3 /0 0 23. Be3 11 Qd8 /0 0 24. Bxh6 17 Qf6 /0 0 25. Qd2 9 Nxe1 /0 0 26. Bxf8 9 Nxf3+ /0 0 27. Rxf3 10 gxf5 /0 0 28. Rxf5 10 Qg6 /0 0 29. Rg5 8 Qxg5 /0 0 30. Qxg5+ 7 Kxf8 /0 0 31. Qh6+ 11 Kg8 /0 0 32. Kh2 8 Ra1 /0 0 33. Qxd6 144 Rxb1 /0 0 34. Qxb4 97 Rxe4 /0 0 35. Qxb5 66 c3 /0 0 36. Qxb7 41 Kg7 /0 0 37. d6 98 c2 0.00/18 179 38. Qxe4 98 c1=Q 0.00/19 0 39. d7 258 Qg1+ 0.00/20 0 40. Kg3 25 Rd1 0.00/20 0 41. Qf5 231 f6 0.00/21 0 42. Qe4 34 Rd2 0.00/20 0 43. d8=Q 67 Qxf2+ 0.00/20 0 44. Kh2 43 Rxd8 0.00/20 1 45. Qe7+ 33 Kg6 0.00/21 142 46. Qxd8 46 Qf4+ 0.00/22 0 47. Kg1 126 Qc1+ 0.00/21 22 48. Kf2 69 Qxb2+ 0.00/21 120 49. Kf3 (e3) 15 Qc3+ 0.00/21 105 50. Ke2 (f4) 42 Qe5+ 0.00/21 140 51. Kd1 (d3) 61 Qa1+ 0.00/21 73 52. Kd2 (e2) 64 1/2-1/2 Jump to page #    (enter # from 1 to 79) < Earlier Kibitzing  · PAGE 50 OF 79 ·  Later Kibitzing>

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