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Up Topic Rybka Support & Discussion / Rybka Discussion / Zug-Zwang-BUG by Rybka 3
- - By Eduard (***) [de] Date 2009-08-23 07:41 Edited 2009-08-23 07:52
Zug-Zwang-BUG by Rybka 3 (The BUG it is not in Rybka 2.2)!

Yesterday i played 3 Centaur games against Rybka 3 16m + 0s (+1 =1 -1). (No R3 as Analysis Engine, I used Rybka 2 :))

In game 3, Rybka 3 played for me a not understanding move 58. g4??

See here, first the PGN:

[Event "Wertungspartie, 16m + 0s"]
[Site "Maschinenraum"]
[Date "2009.08.22"]
[Round "?"]
[White "Jules Verne, Rybka 3"]
[Black "EduardNemeth, Centaur"]
[Result "0-1"]
[ECO "C43"]
[WhiteElo "2471"]
[BlackElo "2391"]
[PlyCount "127"]
[EventDate "2009.08.22"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. O-O Qh4 8.
c4 O-O-O 9. c5 g5 10. Nc3 Bg7 11. g3 Qh3 12. Nxe4 dxe4 13. Bxe4 Bb5 14. Bg2 Qf5
15. Be3 Bxf1 16. Bxf1 Kb8 17. Qa4 c6 18. Bg2 h5 19. Rd1 h4 20. d5 h3 21. Be4
Qe5 22. Bf3 Qf5 23. Bh1 Qg6 24. d6 Rd7 25. b4 a6 26. Bxc6 bxc6 27. Qxc6 Qf5 28.
Kf1 Rc8 29. Qxa6 Qf3 30. Qb5+ Rb7 31. Qd3 Qh1+ 32. Ke2 Qc6 33. Qd5 Qd7 34. a3
g4 35. Rd3 f5 36. Bf4 Ka7 37. Kd2 Ba1 38. Re3 Bb2 39. Re7 Qb5 40. Rxb7+ Qxb7
41. Qb3 Bf6 42. Be3 Ka8 43. Qe6 Bd8 44. Qxf5 Kb8 45. Bf4 Ka7 46. Kc2 Ra8 47.
Bc1 Kb8 48. Qxg4 Qd5 49. Bb2 Ra7 50. Qe2 Qg2 51. Kd2 Rf7 52. f4 Bf6 53. Bxf6
Rxf6 54. Kd1 Qd5+ 55. Qd2 Qb3+ 56. Ke2 Re6+ 57. Kf2 Kc8 58. g4 $2 (58. c6 $1
Rxd6 59. Qxd6 Qf3+ 60. Ke1 Qe2+ 61. Kxe2 $11) 58... Re4 59. c6 Rc4 60. f5 Rc2
61. Qxc2 Qxc2+ 62. Kg3 Qg2+ 63. Kh4 Qxh2 64. f6 0-1

Jules Verne,Rybka 3 - EduardNemeth,Centaur, Wertungspartie, 16m + 0s 2009
2k5/8/3Pr3/2P5/1P3P2/Pq4Pp/3Q1K1P/8 w - - 0 1


Analysis by Rybka 3:

58.g4 Kd8 59.Dd4 Dxa3 60.f5 Te8 61.b5 Da2+ 62.Kg3 Db3+ 63.Kh4 Dxb5 64.Df6+ Kc8 65.Dc3 Da4
  +/-  (1.23)   Tiefe: 9   00:00:01  113kN
58.g4 Kd8 59.g5 Dxa3 60.c6 Da6 61.f5 Db6+ 62.Kg3 Dg1+ 63.Kh4 Te4+ 64.Kh5
  +/-  (0.81)   Tiefe: 10   00:00:03  397kN
58.g4 Kd8 59.Dd4 Dxa3 60.f5 Te8 61.b5 Da2+ 62.Kg3 Db3+ 63.Kf4 Dxb5 64.Kg5 Dc6
  +/=  (0.66)   Tiefe: 11   00:00:05  522kN
58.g4 Kd8 59.Dd4 Dxa3 60.f5 Te8 61.b5 Da2+ 62.Kg3 Db3+ 63.Kf4 Dxb5 64.Kg5 Dc6 65.Kh4 Db5 66.Kxh3 De2
  +/=  (0.66)   Tiefe: 12   00:00:06  728kN
58.g4 Kd8 59.Dd4 Dxa3 60.f5 Te8 61.b5 Da2+ 62.Kg3 Db3+ 63.Kf4 Dxb5 64.Kg5 Dc6 65.Kh4 Db5
  +/=  (0.66)   Tiefe: 13   00:00:09  1021kN
58.g4 Kd8 59.Dd4 Dxa3 60.f5 Te8 61.b5 Dc1 62.c6 De1+ 63.Kf3 Dh1+ 64.Kf4 Dc1+ 65.Kg3 De1+
  =  (0.00)   Tiefe: 14   00:00:43  4843kN

58.c6 Txd6 59.Dxd6 Df3+ 60.Kxf3
  =  (0.00)   Tiefe: 15   00:01:13  8134kN


We are here in an Endgame now!, and Rybka 3 hase here not time more for a longer analysis, longer then 60 seconds.

Jules Verne,Rybka 3 - EduardNemeth,Centaur, Wertungspartie, 16m + 0s 2009

Analysis by Rybka 2.2 mp 32-bit:

1. =  (0.00): 58.c6 Txd6 59.Dxd6 De3+ 60.Kf1 De1+ 61.Kxe1
2. -/+  (-0.92): 58.a4 Te4 59.d7+ Kd8 60.b5 Txa4 61.c6 Ta8 62.g4 Dxb5 63.Dd6 Db2+ 64.Kg3 Da3+
3. -+  (-1.56): 58.d7+ Kd8 59.a4 Dxa4 60.g4 Te4 61.Kg3 Txb4 62.g5 Td4 63.De3 Dxd7 64.De5 Kc8
4. -+  (-1.80): 58.g4 Te4 59.b5 Dxb5 60.Kf3 Dc6 61.d7+ Kd8 62.Kg3 Dxc5 63.Kxh3 Te3+ 64.Kg2 Txa3

Rybka 2.2 mp is here right with the move 58. c6 (not g4?)! R 2.2 sees in shorter time, that c6 is much better
then g4? -->much faster then Rybka 3 !!

Jules Verne,Rybka 3 - EduardNemeth,Centaur, Wertungspartie, 16m + 0s 2009
2k5/8/3Pr3/2P5/1P3PP1/Pq5p/3Q1K1P/8 b - - 0 1


Analysis by Rybka 3:

58...Te4 59.b5 Dxb5 60.Kf3 Dc6 61.Kg3 Dxc5
  -+  (-1.48)   Tiefe: 15   00:00:56  5951kN
58...Te4 59.b5 Dxb5 60.Kf3 Dc6 61.Kg3 Dxc5
  -+  (-1.48)   Tiefe: 16   00:01:24  8889kN, tb=2

First after my move 58...Re4!? Rybka 3 sees white position as probably lost! :(

Will be Rybka 4 here much better then Rybka 3?
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2009-08-23 10:49 Edited 2009-08-23 10:51
58.g4 is a blunder

Jules Verne,R - EduardNemeth,C, Wertungspartie, 16m + 0s 2009
2k5/8/3Pr3/2P5/1P3P2/Pq4Pp/3Q1K1P/8 w - - 0 1


Analysis by Rybka 3v61 cluster NL:

58.g4 Kd8 59.Qd4 Qxa3 60.f5 Re8 61.Qd2 Kd7 62.f6 Qb3 63.Qf4 Qb2+ 64.Kg3
  +-  (1.44 !)   Depth: 8   00:00:00  376kN
58.g4 Kd8 59.Qd4 Qxa3 60.f5 Re8 61.Qd2 Kd7 62.f6 Qb3 63.Qf4 Qb2+ 64.Kg3
  +-  (1.59 !)   Depth: 8   00:00:00  390kN
58.g4 Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kg4 Kd7 64.g7
  +-  (1.44)   Depth: 8   00:00:00  628kN
58.g4 Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kg4 Kd7 64.g7
  +-  (1.56 !)   Depth: 9   00:00:00  755kN
58.g4 Re4 59.g5 Qc4 60.Kg3 Re2 61.Qd1 Qc3+ 62.Kh4 Qh8+ 63.Kg4 Rg2+ 64.Kf5 Qh7+ 65.Ke5
  +-  (1.59)   Depth: 9   00:00:00  788kN
58.g4 Re4 59.a4 Qxa4 60.Kg3 Qb3+ 61.Kh4 Qxb4 62.Qa2 Rxf4 63.Qe6+ Kb7 64.Qd7+ Ka6 65.Qc6+ Ka7 66.Qd7+ Ka6 67.Qc6+ Ka7 68.Qd7+ Ka6 69.Qc6+ Ka7 70.Qd7+ Ka6 71.Qc6+ Ka7 72.Qd7+ Ka6 73.Qc6+
  =  (0.00)   Depth: 10   00:00:01  4294kN, tb=51
58.c6 Rxd6 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 11   00:00:02  4818kN, tb=51
58.c6 Rxd6 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 12   00:00:02  5987kN, tb=64
58.c6 Rxd6 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 13   00:00:02  6892kN, tb=64
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 14   00:00:03  7700kN, tb=65
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 15   00:00:04  10538kN, tb=68
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 16   00:00:05  15445kN, tb=76
58.c6 Rxd6 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 17   00:00:06  19275kN, tb=82
58.c6 Rxd6 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 18   00:00:08  25125kN, tb=112
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 19   00:00:10  35205kN, tb=162
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 20   00:00:15  54049kN, tb=294
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 21   00:00:23  86087kN, tb=589
58.c6 Rxd6[] 59.Qxd6 Qc2+ 60.Kf3 Qe2+ 61.Kxe2
  =  (0.00)   Depth: 22   00:00:34  128mN, tb=1168

(cluster,  23.08.2009)

Jules Verne,R - EduardNemeth,C, Wertungspartie, 16m + 0s 2009
2k5/8/3Pr3/2P5/1P3P2/Pq4Pp/3Q1K1P/8 w - - 0 1


Analysis by Rybka 3v61 slave:

58.g4 Qxa3 59.g5 Qb3 60.Qd4 Qc2+ 61.Kg3
  +-  (1.58 !)   Depth: 6   00:00:00  8kN
58.g4 Qxa3 59.g5 Qb3 60.Qd4 Qc2+ 61.Kg3
  +-  (1.73 !)   Depth: 6   00:00:00  9kN
58.g4 Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kh4 Rb4 64.g7
  +-  (1.73)   Depth: 6   00:00:00  13kN
58.g4 Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kh4 Rb2 64.f5 Kd7
  +-  (1.77)   Depth: 7   00:00:00  14kN
58.c6 Qc4 59.d7+ Kd8 60.b5 Qc5+ 61.Kf3 Qxb5 62.c7+
  +-  (1.85 !)   Depth: 7   00:00:00  27kN
58.c6 Qc4 59.d7+ Kd8 60.b5 Qc5+ 61.Kf3 Qxb5 62.c7+
  +-  (2.00 !)   Depth: 7   00:00:00  28kN
58.c6 Qc4 59.d7+ Kd8 60.b5 Qc5+ 61.Kf3 Qxb5 62.c7+
  +-  (2.00 !)   Depth: 7   00:00:00  28kN
58.g4 Re4 59.g5 Qc4 60.Kg3 Re2 61.Qd1 Re3+ 62.Kg4 Qe6+ 63.Kh4 Rxa3
  +-  (1.48)   Depth: 8   00:00:00  66kN
58.g4 Re4[] 59.g5 Qc4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Rg2+ 63.Kh4 Qe2 64.Qb6+ Kxd7 65.Qd6+ Ke8 66.Qc6+ Kd8 67.Qf6+ Kc7 68.Qg7+ Kc8 69.Qh8+ Kb7 70.Qh7+ Kb8
  =  (0.11)   Depth: 9   00:00:01  376kN, tb=16
58.g4 Re4 59.g5 Qc4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Rg2+ 63.Kh4 Qe2 64.Qb6+ Kxd7 65.Qd6+ Ke8 66.Qc6+ Kd8 67.Qf6+ Kc7 68.Qg7+ Kc8 69.Qh8+ Kb7 70.Qh7+ Kb8
  =  (0.11)   Depth: 10   00:00:01  415kN, tb=16
58.c6 Rxd6 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 11   00:00:01  503kN, tb=17
58.c6 Rxd6 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 12   00:00:01  615kN, tb=17
58.c6 Rxd6 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 13   00:00:02  725kN, tb=18
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 14   00:00:02  959kN, tb=26
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 15   00:00:03  1321kN, tb=33
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 16   00:00:04  1695kN, tb=37
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 17   00:00:05  1978kN, tb=41
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 18   00:00:08  3193kN, tb=57
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 19   00:00:10  3755kN, tb=68
58.c6 Rxd6[] 59.Qxd6 Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 20   00:00:13  4859kN, tb=101
58.c6 Rxd6[] 59.Qxd6[] Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 21   00:00:18  6740kN, tb=148
58.c6 Rxd6[] 59.Qxd6[] Qe3+ 60.Kf1 Qe1+ 61.Kxe1
  =  (0.00)   Depth: 22   00:00:27  10109kN, tb=321

(W5580,  23.08.2009)
Parent - - By mikal (**) [us] Date 2009-08-23 12:42
What does 'NL' in cluster NL stands for?
Parent - - By Lukas Cimiotti (Bronze) [de] Date 2009-08-23 12:50
I added that - no logging
Parent - By Mark (****) [us] Date 2009-08-23 13:48
Are the cluster nodes just the sum of all the cores or are they "effective nodes?"  (ie Can we compare the cluster nps with those of a single computer?)
Parent - - By Roland Rösler (****) [de] Date 2009-08-23 21:25
Okay, we can´t see that g4 is a blunder! May be it´s eval 0.00 too!
Can you show the eval of CR after g4 is played?

PS: Can CR also show best two or three lines like any normal UCI engine? I don´t know it.
Parent - By Lukas Cimiotti (Bronze) [de] Date 2009-08-24 14:35
Jules Verne,R - EduardNemeth,C, Wertungspartie, 16m + 0s 2009
2k5/8/3Pr3/2P5/1P3PP1/Pq5p/3Q1K1P/8 b - - 0 1


Analysis by Rybka 3v61 slave:

58...Qc4 59.g5 Kd7 60.a4 Re4
  +-  (1.51 !)   Depth: 6   00:00:00  17kN
58...Qc4 59.g5 Kd7 60.a4 Re4 61.Kf3 Qxb4 62.Qxb4 Rxb4 63.g6 Rxa4 64.g7 Ra3+ 65.Ke4 Ra8
  +-  (1.57)   Depth: 6   00:00:00  18kN
58...Qc4 59.g5 Kd7 60.Kf3 Qe4+ 61.Kg3 Qe3+ 62.Qxe3 Rxe3+ 63.Kg4 Rxa3
  +-  (1.45 !)   Depth: 7   00:00:00  31kN
58...Qc4 59.g5 Kd7 60.Kf3 Re8 61.a4 Rb8 62.Qb2 Kc6 63.Qg7 Qd3+
  +-  (1.50)   Depth: 7   00:00:00  32kN
58...Qc4 59.g5 Re4 60.Kf3 Rd4 61.Qe3 Rd3
  +/-  (1.38 !)   Depth: 8   00:00:00  40kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.Qd1 Re3+ 62.Kh4 Qxf4+ 63.Qg4+ Qxg4+ 64.Kxg4
  +/-  (1.32)   Depth: 8   00:00:00  45kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.Qd1 Kd8 62.Kxh3 Re3+ 63.Kg4 Qe6+
  +/-  (1.20 !)   Depth: 9   00:00:00  56kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.Qd1 Kd8 62.Kxh3 Re3+ 63.Kg4 Qe6+
  +/-  (1.05 !)   Depth: 9   00:00:00  65kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4
  +/-  (1.02)   Depth: 9   00:00:00  92kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4
  +/-  (0.90 !)   Depth: 10   00:00:00  114kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4
  +/-  (0.75 !)   Depth: 10   00:00:00  131kN
58...Qc4 59.g5 Re4[] 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qa8+ Kf7 68.Qb7+ Re7 69.g6+ Kf6
  +/=  (0.54)   Depth: 10   00:00:00  165kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qa8+ Kf7 68.Qb7+ Re7 69.g6+ Kf6
  +/=  (0.54)   Depth: 11   00:00:00  190kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7[] 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qa8+ Kf7 68.Qb7+ Re7 69.g6+ Kf6
  +/=  (0.42 !)   Depth: 12   00:00:00  298kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7[] 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qa8+ Kf7 68.Qb7+ Re7 69.g6+ Kf6
  +/=  (0.27 !)   Depth: 12   00:00:01  366kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7[] 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qc6+ Kf8 68.Qh6+ Ke8 69.Qg6+ Kd7 70.Qf5+ Ke7 71.Qh7+ Ke8 72.Qg6+ Kd7 73.Qf5+ Ke7
  +/=  (0.27)   Depth: 12   00:00:01  375kN
58...Qc4 59.g5 Re4 60.Kg3 Re2 61.d7+ Kd8 62.Qd6 Re6 63.Qb8+ Kxd7 64.Qb7+ Ke8 65.Qf3 Qd4 66.Kg4 Re3 67.Qc6+ Kf8 68.Qh6+ Ke8 69.Qg6+ Kd7 70.Qf5+ Ke7 71.Qh7+ Ke8 72.Qg6+ Kd7 73.Qf5+ Ke7
  +/=  (0.27)   Depth: 13   00:00:01  514kN, tb=3
58...Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kg4 Kd7 64.g7 Rb2 65.Kxh3 Rb8 66.f5
  =  (0.15 !)   Depth: 13   00:00:01  713kN, tb=6
58...Re4 59.g5 Qxa3 60.g6 Qxb4 61.Qxb4 Rxb4 62.Kg3 Rb3+ 63.Kg4 Kd7 64.g7 Rb2 65.Kxh3 Rb8 66.f5
  =  (0.00 !)   Depth: 13   00:00:02  821kN, tb=7
58...Re4 59.g5 Rc4
  =/+  (-0.40 !)   Depth: 13   00:00:03  1259kN, tb=30
58...Re4 59.g5 Rc4 60.Ke1 Qb1+ 61.Kf2 Rc2
  -/+  (-1.20 !)   Depth: 13   00:00:05  1745kN, tb=117
58...Re4 59.d7+ Kd8[] 60.b5 Qxb5 61.Kg3 Qxd7 62.Qa5+ Ke7 63.Qb6 Re6 64.Qb3 Qc6 65.Qc3 Qg2+ 66.Kh4 Qf2+ 67.Kg5 Qe3 68.Qg7+ Kd8 69.a4 Qxc5+ 70.f5 Qe3+ 71.Kh5 Re7 72.Qg8+ Kc7 73.Qc4+ Kd6
  -+  (-1.50)   Depth: 13   00:00:09  3233kN, tb=287
58...Re4 59.d7+ Kd8[] 60.b5 Qxb5 61.Kf3 Re7 62.Qd4 Rxd7 63.Qh8+ Kc7[] 64.Qe5+ Kc6 65.g5 Qf1+ 66.Kg4 Qg2+ 67.Kh5 Rd5 68.Qb8 Kxc5 69.Qb4+ Kc6 70.Qc4+ Kd6 71.Qa6+ Ke7 72.Qc4 Ke6 73.Qc8+ Kf7
  -+  (-1.50)   Depth: 14   00:00:10  3365kN, tb=333
58...Re4 59.b5 Qxb5 60.g5 Qxc5+ 61.Kg3 Kd7
  -+  (-1.50)   Depth: 15   00:00:13  4530kN, tb=496
58...Re4 59.b5 Qxb5 60.g5 Qxc5+ 61.Kg3 Kd7 62.Kf3 Rd4 63.Qe3 Qxd6 64.Kg4 Qe6+ 65.Kf3 Qd5+ 66.Kg4 Qd6 67.Qf3 Ke7 68.Qg3 Kf8 69.Qf3 Ra4 70.Qe3 Rxa3 71.Qe4 Qd1+ 72.Kh4 Qd7 73.Qb4+ Qe7
  -+  (-1.62 !)   Depth: 16   00:00:14  4812kN, tb=504
58...Re4 59.b5 Qxb5 60.g5 Qxc5+ 61.Kg3 Kd7
  -+  (-1.77 !)   Depth: 16   00:00:17  5814kN, tb=913
58...Re4 59.b5 Qxb5[] 60.g5 Qxc5+ 61.Kg3 Rd4 62.Qe3 Qxd6 63.Qe8+ Kc7 64.Qf7+ Qd7 65.Qf6 Rd2 66.Qe5+ Kc8 67.Qc5+ Kb7 68.Qb4+ Ka6 69.Qc4+ Ka7 70.Qc5+ Kb7 71.Qb4+ Ka6 72.Qc4+ Ka7 73.Qc5+ Kb7
  -+  (-2.17 !)   Depth: 16   00:00:24  8163kN, tb=1640
58...Re4 59.b5 Qxb5[] 60.g5 Qxc5+[] 61.Kf3 Rd4[] 62.Qe3 Qxd6 63.Kg4 Kd7 64.Qf3 Ke7 65.Qf2 Kf8 66.Qf3
  -+  (-2.19)   Depth: 16   00:00:29  9921kN, tb=2263
58...Re4 59.b5 Qxb5[] 60.g5 Qxc5+[] 61.Kf3 Rd4[] 62.Qe3 Qxd6 63.Kg4 Kd7 64.Qf3 Ke7 65.Qf2 Kf8 66.Qf3 Ra4 67.Qe3 Rxa3
  -+  (-2.31 !)   Depth: 17   00:00:35  12001kN, tb=2672
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6 61.d7+ Kd8[] 62.Kg3 Qxc5 63.Kh4 Qxa3 64.Qd5 Rxf4 65.Qc6 Qe7+ 66.Kg3 Qe3+ 67.Kh4 Qf2+ 68.Kh5 Rf8 69.Qc8+ Ke7 70.Qe8+ Rxe8 71.dxe8Q+ Kxe8
  -+  (-2.30)   Depth: 17   00:00:40  13704kN, tb=3458
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6 61.d7+ Kd8[] 62.Kg3 Qxc5 63.Kh4 Qxa3 64.Qd5 Rxf4 65.Qc6 Qe7+ 66.Kg3 Qe3+ 67.Kh4 Qf2+ 68.Kh5 Rf8 69.Qc8+ Ke7 70.Qe8+ Rxe8 71.dxe8Q+ Kxe8
  -+  (-2.30)   Depth: 18   00:00:42  14444kN, tb=3563
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Kg3 Qxc5 63.Kh4 Qxa3 64.Qd5 Rxf4 65.Qc6 Qe7+ 66.Kg3 Qe3+ 67.Kh4 Qf2+ 68.Kh5 Rf8 69.Qc8+ Ke7 70.Qe8+ Rxe8 71.dxe8Q+ Kxe8
  -+  (-2.42 !)   Depth: 19   00:00:51  17531kN, tb=4444
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7[] 63.Qa7+ Ke6 64.Kg3 Ra4 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5 67.Qb1 Qf2+ 68.Kg5 Qe3 69.Qf5+ Kd6 70.Qf6+ Kc5 71.Qf8+ Kc4 72.Qf7+ Kb5 73.Kh4 Qf2+
  -+  (-2.51)   Depth: 19   00:01:03  22054kN, tb=6124
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7[] 63.Qa7+ Ke6 64.Kg3 Ra4 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5 67.Qb1 Qf2+ 68.Kg5 Qe3 69.Qf5+ Kd6 70.Qf6+ Kc5 71.Qf8+ Kc4 72.Qf7+ Kb5 73.Kh4 Qf2+
  -+  (-2.51)   Depth: 20   00:01:10  24714kN, tb=7014
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7 63.Qa7+ Ke6[] 64.Kg3 Ra4[] 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5 67.Qb1 Qf2+ 68.Kg5[] Qe3 69.Qf5+ Kd6 70.Qf6+ Kd5 71.Qf7+ Kd4 72.Kh5 Ra6 73.g5 Qe2+
  -+  (-2.63 !)   Depth: 21   00:02:02  44356kN, tb=15705
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7 63.Qa7+ Ke6[] 64.Kg3 Ra4[] 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5 67.Qb1 Rc3 68.f5+ Kf7 69.Qa2+ Kf8 70.Qa8+ Kg7 71.Qe4 Rc2 72.Qe6 Rxh2 73.Qd7+ Kf8
  -+  (-2.78 !)   Depth: 21   00:02:52  64052kN, tb=25592
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7[] 63.Qa7+ Ke6[] 64.Kg3 Ra4[] 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5[] 67.Qb1 Ra4 68.Qb3+ Qc4[] 69.f5+ Kf6 70.Qb6+[] Ke5 71.Qb2+ Kd6 72.Qb8+ Ke7 73.Qb7+ Kf8
  -+  (-3.18 !)   Depth: 21   00:04:29  101mN, tb=44788
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.d7+ Kd8[] 62.Qa5+ Kxd7[] 63.Qa7+ Ke6[] 64.Kg3 Ra4[] 65.Qb8 Rxa3+[] 66.Kh4[] Qxc5[] 67.Qb1 Ra4 68.Qb3+ Qc4[] 69.f5+ Kf6 70.Qb6+ Ke5 71.Qb2+ Kd6 72.Qb8+ Ke7 73.Qb7+ Kf8
  -+  (-3.98 !)   Depth: 21   00:06:39  147mN, tb=84149
58...Re4 59.b5 Qxb5[] 60.Kf3 Qc6[] 61.Kg3 Qxc5[] 62.g5 Kd7[] 63.Kg4 Qxd6[] 64.Qf2 Ke7 65.a4 Rxa4 66.Qf3 Qe6+ 67.Kh5 Qe4
  -+  (-3.98)   Depth: 21   00:08:33  189mN, tb=208469

(W5580,  24.08.2009)

Not the cluster, but latest Rybka

>PS: Can CR also show best two or three lines like any normal UCI engine? I don´t know it.


yes
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