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Rybka (Computer) vs Jonny (Computer)
Blitz:110' (2005) (blitz), IPCCC 2005, rd 1, Dec-27
Spanish Game: Exchange. Gligoric Variation (C69)  ·  1-0

ANALYSIS [x]

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sac: 16.Nc4 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jan-09-06  mj29479: well 17. d6 and 18. Qd4 seems too complicated for jonny.Rybka pushed a pawn being a piece down is a nice sac to see.
Jan-22-06  THE pawn: 2005 and still a computer gets beaten down in less then 22 moves. Wow.
Jan-25-06  RandomVisitor: This analysis was posted on another site:
[Event "Blitz:110'"]
[Site "?"]
[Date "2005.12.27"]
[Round "?"]
[White "Rybka 1.0 Beta"]
[Black "Jonny"]
[Result "1-0"]
[ECO "C69"]
[Annotator "Tscheuschner"]
[PlyCount "41"]
[EventDate "2005.??.??"]
[TimeControl "6600"]

1024M♗, ♖ybka_♙aderborn.ctg, ♙C 1. e4 0 e5 (c5) 12 2. Nf3 0 Nc6 9 3. Bb5 0 a6 (♕e7) 7 4. Bxc6 0 dxc6 6 5. O-O 0 f6 8 6. d4 0 Bg4 7 7. c3 0 Bd6 7 8. Be3 0 Qe7 167 9. Nbd2 0 exd4 (0-0-0) 182 10. cxd4 0.29/17 218 O-O-O 76 11. h3 0.18/16 63 Bh5 198 12. Re1 0.16/17 0 Bb4 (♕e6) 130 13. Rc1 0.57/16 156 Rd7 (♘h6) 25 14. d5 1.16/17 283 cxd5 (♗xd2) 215 15. exd5 1.21/17 273 Qf7 20 16. Nc4 1.89/17 421 Bxe1 52 17. d6 2.07/16 81 c6 (♗a5) 255 18. Qd4 3.86/15 122 Bb4 (♔d8) 179 19. Qa7 6.44/14 109 Rxd6 207 20. Qa8+ 7.27/14 0 Kd7 537 21. Nxd6 8.47/16 0 1-0

The key point in the game on white's 16th move.

Jan-29-06  RandomVisitor: Here is another analysis of the same game, a little deeper. All the mistakes are by Jonny.

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 Bg4 7. c3 Bd6 8. Be3 Qe7 9. Nbd2 exd4 10. cxd4 O-O-O 11. h3 last book move Bh5 0.33/17

12. Re1 0.33/17 Bb4 $14 0.48/17
(♖ybka 1.01 ♗eta 13b 32-bit: 12... Qd7 13. e5 $14 0.33/17)

13. Rc1 0.48/17 Rd7 $16 1.16/17
(♖ybka 1.01 ♗eta 13b 32-bit: 13... Nh6 14. d5 Nf7 $14 0.48/17)

14. d5 1.16/17 cxd5 1.64/17
15. exd5 1.64/17 Qf7 $18 2.59/17
(♖ybka 1.01 ♗eta 13b 32-bit: 15... Qd8 16. Nc4 Kb8 $18 1.64/17)

16. Nc4 2.59/17 Bxe1 2.59/17
17. d6 2.59/17 c6 $2 $18 4.75/17
(♖ybka 1.01 ♗eta 13b 32-bit: 17... Ba5 18. Qd4 Qe6 19. Bf4 Kb8 20. Nxa5 $18 2.59/17)

18. Qd4 4.75/17 Bb4 $2 $18 10.57/17
(♖ybka 1.01 ♗eta 13b 32-bit: 18... Kd8 19. Rxe1 Ke8 $18 4.75/17)

19. Qa7 10.57/17 Rxd6 10.57/17
20. Qa8+ 10.57/17 Kd7 10.57/17
21. Nxd6 10.57/17 1-0

Aug-12-06  spirit: nice rybka
Sep-15-06  spirit: 16.Nc4! me see your 3-move-theory <randomvisitor> very instructive!
Jul-10-07  Morphyisgod: can someone tell me how this game wouldve ended? thnk u
Jul-11-07
Premium Chessgames Member
  tpstar: Fritz 7 Deep Position Analysis [20MB]:

1) 21 ... Kxd6 22. Rd1+ Qd5 23. Qd8+ Ke6 24. Rxd5 cxd5 [7.47/13]

2) 21 ... Bxd6 22. Qxb7+ Ke8 23. Qc8+ Ke7 24. Bc5 Qe8 [10.78/14]

3) 21 ... Qd5 22. Qxb7+ Kxd6 23. Nd4 g5 24. Rxc6+ Qxc6 [9.22/12]

May-15-10  Cercatore: 16. Nc4?

19: Rxd6?? what a stupid move?

Dec-22-11  Whitehat1963: At least I scored par on this one.
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