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Ikarus (Computer) vs Rybka (Computer)
IPCCC (2005), Paderborn, rd 7, Dec-30
Nimzowitsch Defense: Scandinavian. Advance Variation (B00)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Jan-27-06  RandomVisitor: 1. e4 Nc6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 last book move Nge7 0.09/18 6. Bg5 0.04/18 Be4 -0.03/18
7. c3 0.03/18 h6 0.08/18
8. Bxe7 0.10/18 Bxe7 0.10/18
9. Bxe4 0.10/18 dxe4 0.10/18
10. Nfd2 0.10/18 Qd7 $14 0.36/18
(♖ybka 1.01 ♗eta 13: 10... Qd5 11. Qe2 O-O-O 12. Qxe4 Qb5 13. b3 f5 14. exf6 Bxf6 15. a4 Qd5 16. f4 Rhe8 17. Na3 $11 0.10/18)

11. Nxe4 0.34/18 O-O-O 0.35/18
12. Qe2 $11 0.21/18
(♖ybka 1.01 ♗eta 13: 12. Nbd2 f6 13. exf6 gxf6 14. Nf3 Rhg8 15. O-O f5 16. Ned2 h5 17. Qe2 Kb8 18. b4 h4 $14 0.35/18)

12... f6 0.29/18
13. f4 0.29/18 f5 0.27/18
14. Nf2 0.28/18 g5 0.29/18
15. O-O 0.29/18 Rhg8 0.26/18
16. Kh1 0.26/18 g4 $14 0.45/18
(♖ybka 1.01 ♗eta 13: 16... gxf4 17. Nd2 Bg5 18. Nd3 Ne7 19. Nxf4 Bxf4 20. Rxf4 Kb8 21. a4 Nd5 22. Rh4 Qe7 23. Nf3 $14 0.26/18) 17. Nd1 $14 0.28/18
(♖ybka 1.01 ♗eta 13: 17. Nd2 h5 18. Nc4 h4 19. Ne3 Bf8 20. h3 g3 21. Nd3 $14 0.45/18)

17... h5 0.61/18
18. Nd2 0.61/18 h4 0.58/18
19. Ne3 0.53/18 h3 $16 0.98/18
(♖ybka 1.01 ♗eta 13: 19... Kb8 20. Rfd1 h3 21. g3 a6 22. Kg1 Bf8 23. d5 exd5 24. Nb3 Ne7 25. Qc2 Rh8 26. c4 $14 0.53/18)

20. gxh3 1.05/18 gxh3 1.06/18
21. Rf3 1.06/18 Rh8 1.10/18
22. Qf1 1.10/18 Bf8 1.12/18
23. Rxh3 1.11/18 Bh6 1.23/18
24. Qf3 1.12/18 Ne7 1.14/18
25. Rg1 1.10/18 Kb8 1.36/18
26. Rg2 1.14/18 Qa4 1.05/18
27. Rh5 1.28/18 Qxa2 $18 1.67/18
(♖ybka 1.01 ♗eta 13: 27... a6 28. Qh3 Nd5 29. Nxd5 $16 1.28/18)

28. Qh3 1.65/18 Ng8 1.74/18
29. Ndf1 1.91/18 c6 2.07/18
30. Rg6 2.06/18 Re8 2.18/18
31. Rgxh6 $2 $14 0.48/18
(♖ybka 1.01 ♗eta 13: 31. Qg2 a5 32. c4 Qa4 33. Rh4 Qb4 34. d5 Qe1 35. Rh5 $18 2.18/18)

31... Nxh6 0.38/18
32. Rxh6 0.38/18 Rhg8 0.34/18
33. Qh5 0.42/18 Qxb2 0.36/18
34. Qf7 0.32/18 Qxc3 0.44/18
35. Rxe6 0.36/18 Ref8 0.34/18
36. Qe7 0.38/18 Qxd4 0.42/18
37. Qd6+ 0.38/18 Qxd6 0.42/18
38. Rxd6 0.31/18 a5 0.39/18
39. Ng3 $11 -0.21/18
(♖ybka 1.01 ♗eta 13: 39. Rd3 Rd8 40. Ra3 Rd4 41. Ng3 Re8 42. Nh5 Rh8 43. Ng7 Rxf4 $14 0.39/18)

Jan-27-06  RandomVisitor: Part 2 of analysis:
39... Rd8 -0.21/18
40. Ngxf5 -0.21/18 a4 -0.21/18
41. Nc2 -0.21/18 Kc7 -0.21/18
42. Rxd8 -0.21/18 Rxd8 -0.21/18
43. Nd6 -0.21/18 Ra8 -0.21/18
44. Kg2 $19 -1.41/18
(♖ybka 1.01 ♗eta 13: 44. f5 a3 45. f6 Kd7 46. Nxb7 Ke6 47. Nxa3 Rxa3 48. Nd8+ Kxe5 49. Nxc6+ Kxf6 50. Nd4 Ra1+ $11 -0.21/18)

44... a3 -1.61/18
45. h3 $2 $19 -3.33/18
(♖ybka 1.01 ♗eta 13: 45. h4 a2 46. h5 Rg8+ 47. Kf3 b5 48. Ne4 b4 49. Nc5 Kb6 50. Nb3 c5 51. Nc1 Rg1 $19 -1.61/18)

45... a2 -3.01/18
46. f5 -3.86/18 Ra5 -3.92/18
47. f6 -4.20/18 Kd7 -4.20/18
48. f7 -4.71/18 Ke7 -4.80/18
49. e6 -4.71/18 Re5 -4.71/18
50. Kf3 -4.86/18 b5 -4.86/18
51. Ne4 -4.96/18 b4 -4.96/18
52. Na1 -4.95/18 Rxe6 -4.85/18
53. Kf4 -4.91/18 Rg6 -4.89/18
54. Nb3 -5.06/18 Rh6 -5.10/18
55. Nec5 -6.52/18 Rh5 -6.46/18
56. Nd3 $2 $19 -11.04/18
(♖ybka 1.01 ♗eta 13: 56. Nd7 Kxf7 57. Ne5+ Ke7 58. Nd3 c5 59. Na1 b3 $19 -6.46/18)

56... c5 -11.10/18
57. Nf2 $2 $19 -319.59/17
(♖ybka 1.01 ♗eta 13: 57. Na1 b3 58. Kg4 Rd5 $19 -11.10/18) 57... c4 -319.60/18 0-1

Jan-27-06  RandomVisitor: Rybka launches a questionable Kingside attack and gets an inferior position (-2.18 eval favors Ikarus). Ikarus then makes a series of blunders and mishandles the endgame.
Aug-13-06  spirit: nice rybka
Sep-15-06  spirit: something about rybka's ending me dont pin down...

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