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Up Topic The Rybka Lounge / Test Positions / Mate in 13
- - By sensei (*) [fr] Date 2012-03-18 19:13
n2Bqk2/5p1p/5KP1/p7/8/8/2Q5/8 w - - 0 1


It's white to move.
Parent - By DGB (**) [pt] Date 2012-03-18 20:47
Can you reveal the mate please.

Thank you.
- By hsnksc77 (**) [tr] Date 2012-03-18 20:20
n2Bqk2/5p1p/5KP1/p7/8/8/2Q5/8 w - - 0 1


Analysis by Houdini 2.0c Pro x64:

1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 a4 4.Qg5 Qc6+ 5.Kxf7 Qc4+ 6.Kf6 Qd4+ 7.Kf5 Kxh7
  =  (0.08)   Depth: 6/23   00:00:00  10kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 a4 4.Qg5 Qc6+ 5.Kxf7 Qc4+ 6.Kf6 Qd4+ 7.Kf5 Kxh7
  =  (0.08)   Depth: 7/23   00:00:00  11kN
1.Qc8
  =  (0.13 !)   Depth: 7/23   00:00:00  13kN
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe3+ 5.Kf5 Qe6+ 6.Kf4 Qc4+ 7.Kg3 Qd3+ 8.Kg4 Kxh7 9.Bxa5
  =  (0.16)   Depth: 7/23   00:00:00  15kN
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kg4 Kxh7 6.Qh1+ Kg7
  =  (0.14)   Depth: 8/23   00:00:00  18kN
1.Qc5+
  =  (0.19 !)   Depth: 9/23   00:00:00  33kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qb7+ 10.Ke6 Kxh7
  =  (0.24)   Depth: 9/23   00:00:00  41kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qb7+ 10.Ke6 Kxh7
  =  (0.24)   Depth: 10/23   00:00:00  52kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qb7+ 10.Ke6 Kxh7
  =  (0.24)   Depth: 11/24   00:00:00  84kN
1.Qc5+ Kg8
  =  (0.18 --)   Depth: 12/36   00:00:00  175kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qc4+ 10.Kf6 Qc3+ 11.Kf5 Qd3+ 12.Ke6 Qc4+ 13.Kd6 Kxh7 14.Bf6
  =  (0.18)   Depth: 12/36   00:00:00  266kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qc4+ 10.Kf6 Qd4+ 11.Ke6 Qe4+ 12.Kd6 Qb4+ 13.Kd7 Qb7+ 14.Ke6 Qe4+ 15.Kd6
  =  (0.17)   Depth: 13/36   00:00:00  355kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qc4+ 10.Kf6 Qd4+ 11.Ke6 Qe4+ 12.Kd6 Qd4+ 13.Kc6 Qa4+ 14.Kb7 Qe4+ 15.Ka6 Qc6+ 16.Ka7 Kxh7
  =  (0.14)   Depth: 14/36   00:00:00  827kN
1.Qc5+ Kg8
  =  (0.09 --)   Depth: 15/38   00:00:00  1439kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qb7+ 10.Kf6 Qc6+ 11.Ke7 Kxh7 12.Qf5+ Qg6 13.Qh3+ Kg7 14.Qc3+ Kh7 15.Qc5 Qe4+ 16.Kf6
  =  (0.06)   Depth: 15/38   00:00:00  2118kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb2+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Ke8 Qe4+ 9.Kf7 Qb7+ 10.Kf6 Qc6+ 11.Ke7 Kxh7 12.Qf5+ Qg6 13.Qh3+ Kg7 14.Qc3+ Kh7 15.Qc5 Qe4+ 16.Kf6
  =  (0.06)   Depth: 16/38   00:00:00  2807kN
1.Qc5+ Kg8
  =  (0.01 --)   Depth: 17/40   00:00:01  6484kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qc4+ 8.Ke7 Qe2+ 9.Kd6 Qd3+ 10.Kc6 Qg6+ 11.Bd6 Qe8+ 12.Kd5 Qg8+ 13.Ke4 Qc4+ 14.Ke3 Qb3+ 15.Qxb3 axb3
  =  (0.03)   Depth: 17/45   00:00:02  14650kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qc4+ 8.Ke7 Qe2+ 9.Kd6 Qd3+ 10.Kc6 Qg6+ 11.Bd6 Qe8+ 12.Kd5 Qg8+ 13.Ke4 Qc4+ 14.Ke3 Qb3+ 15.Qxb3 axb3
  =  (0.03)   Depth: 18/45   00:00:02  16023kN
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 19/45   00:00:04  30139kN, tb=7
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 20/45   00:00:06  46871kN, tb=40
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 21/45   00:00:10  78465kN, tb=113
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 22/52   00:00:16  120mN, tb=264
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 23/52   00:00:24  185mN, tb=568
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 24/52   00:00:41  321mN, tb=1201
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 25/54   00:01:06  527mN, tb=2371
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 Nb6 6.Qxb6 Kxh7 7.Kxf7 Qg8+ 8.Ke7 Qg7+ 9.Kd8 Qg8+ 10.Kd7 Qf7+ 11.Kc8 a3 12.Bxa3 Qe8+ 13.Kb7 Qd7+ 14.Kb8 Qe8+ 15.Kb7 Qd7+
  =  (0.00)   Depth: 26/54   00:01:59  957mN, tb=4719
- By hsnksc77 (**) [tr] Date 2012-03-18 20:31
n2Bqk2/5p1p/5KP1/p7/8/8/2Q5/8 w - - 0 1


Analysis by Spike 1.4:

1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kg4 Kxh7 6.Bxa5
  =  (0.16)   Depth: 6   00:00:00  5kN
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kg4 Kxh7 6.Bxa5
  =  (0.16)   Depth: 6   00:00:00  7kN
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qd4+ 7.Kg5 Qe5+ 8.Kg4 f5+ 9.Kf3
  =  (0.16)   Depth: 7   00:00:00  21kN, tb=1
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qd4+ 7.Kg5 Qe5+ 8.Kg4 f5+ 9.Kf3
  =  (0.16)   Depth: 7   00:00:00  23kN, tb=1
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qd4+ 7.Kg5 Qe5+ 8.Kg4 f5+ 9.Kf3
  =  (0.16)   Depth: 8   00:00:00  25kN, tb=1
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qd4+ 7.Kg5 Qe5+ 8.Kg4 f5+ 9.Kf3
  =  (0.16)   Depth: 8   00:00:00  31kN, tb=1
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qf4+ 7.Kh5 Qe5+ 8.Kg4 f5+ 9.Kf3 Qe4+
  =  (0.14)   Depth: 9   00:00:00  52kN, tb=2
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Bxa5 Qf4+ 7.Kh5 Qe5+ 8.Kg4 f5+ 9.Kf3 Qe4+
  =  (0.14)   Depth: 9   00:00:00  66kN, tb=2
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 10   00:00:00  167kN, tb=5
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 10   00:00:00  184kN, tb=5
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 11   00:00:00  260kN, tb=7
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 11   00:00:00  298kN, tb=9
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 12   00:00:00  407kN, tb=24
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6
  =  (0.12)   Depth: 12   00:00:00  444kN, tb=26
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6 10.Kd5
  =  (0.12)   Depth: 13   00:00:00  674kN, tb=57
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Qd7+ Kh6 10.Kd5
  =  (0.12)   Depth: 13   00:00:00  734kN, tb=76
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd5
  =  (0.11)   Depth: 14   00:00:00  1060kN, tb=140
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd5
  =  (0.11)   Depth: 14   00:00:00  1204kN, tb=181
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 Qg6+ 11.Kc5
  =  (0.11)   Depth: 15   00:00:01  1747kN, tb=362
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 Qg6+ 11.Kc5
  =  (0.11)   Depth: 15   00:00:01  1861kN, tb=462
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 Kh5 11.Bf6
  =  (0.11)   Depth: 16   00:00:01  2684kN, tb=889
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 Kh5 11.Bf6
  =  (0.11)   Depth: 16   00:00:01  2908kN, tb=1135
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 f4 11.Qd4 Qg6+ 12.Bf6 Qf5 13.Bg7+ Kg6
  =  (0.11)   Depth: 17   00:00:02  4395kN, tb=1980
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Qd3 Qg7+ 6.Ke7 f5+ 7.Ke6 Kxh7 8.Bf6 Qg4 9.Be5 Kh6 10.Kd6 f4 11.Qd4 Qg6+ 12.Bf6 Qf5 13.Bg7+ Kg6
  =  (0.11)   Depth: 17   00:00:02  4863kN, tb=2660
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Kg5 Qg7+ 6.Kf4 Kxh7 7.Bg5 f6 8.Qh1+ Kg6 9.Qe4+ Kf7 10.Qd5+ Kg6 11.Qd3+ Kf7 12.Qc4+ Ke7 13.Qc7+ Kf8 14.Qd8+ Kf7 15.Bh4 Qh6+ 16.Kg4
  =  (0.09)   Depth: 18   00:00:11  27273kN, tb=6170
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 a4 4.Qd5 Qf8 5.Kg5 Qg7+ 6.Kf4 Kxh7 7.Bg5 f6 8.Qh1+ Kg6 9.Qe4+ Kf7 10.Qd5+ Kg6 11.Qd3+ Kf7 12.Qc4+ Ke7 13.Qc7+ Kf8 14.Qd8+ Kf7 15.Bh4 Qh6+ 16.Kg4
  =  (0.09)   Depth: 18   00:00:12  28235kN, tb=7358
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kg4 Kxh7 6.Kf3 a4 7.Ba5 a3 8.Bd2 Qe6 9.Kf2 Qf6+ 10.Ke1 a2 11.Qe4+ Kg8 12.Qg4+ Kh7 13.Qh3+ Kg8 14.Qc8+ Kg7 15.Qg4+ Qg6 16.Qd4+ Qf6
  =  (0.03)   Depth: 19   00:00:28  64358kN, tb=18769
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8 Qe6+ 7.Kf4 Qc4+ 8.Kg5 Qc5+ 9.Kg4 Qd4+ 10.Kf5 Qc5+ 11.Ke4 Qc4+ 12.Ke3 Qc3+ 13.Ke2 Qc2+ 14.Ke1 Qc1+ 15.Kf2 Qc2+ 16.Kg3 Qd3+ 17.Kf4 Qc4+
  =  (0.05)   Depth: 19   00:00:33  77918kN, tb=25532
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8 Qe6+ 7.Kf4 Qc4+ 8.Kg5 Qc5+ 9.Kg4 Qd4+ 10.Kf5 Qc5+ 11.Ke4 Qc4+ 12.Ke3 Qc3+ 13.Ke2 Qc2+ 14.Ke1 Qc1+ 15.Kf2 Qc2+ 16.Kg3 Qd3+ 17.Kf4 Qc4+
  =  (0.05)   Depth: 19   00:00:33  78513kN, tb=26353
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8 Qe6+ 7.Kf4 Qc4+ 8.Kg5 Qc5+ 9.Kg4 Qd4+ 10.Kf5 Qc5+ 11.Ke4 Qc4+ 12.Ke3 Qc3+ 13.Ke2 Qc2+ 14.Kf3 Qc3+ 15.Kg2 Qc2+ 16.Kh1 Qd1+ 17.Kh2 Qd2+ 18.Kg1 Kg7
  =  (0.04)   Depth: 20   00:00:38  87175kN, tb=33717
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8 Qe6+ 7.Kf4 Qc4+ 8.Kg5 Qc5+ 9.Kg4 Qd4+ 10.Kf5 Qc5+ 11.Ke4 Qc4+ 12.Ke3 Qc3+ 13.Ke2 Qc2+ 14.Kf3 Qc3+ 15.Kg2 Qc2+ 16.Kh1 Qd1+ 17.Kh2 Qd2+ 18.Kg1 Kg7
  =  (0.04)   Depth: 20   00:00:41  88958kN, tb=36142
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8 Qe6+ 7.Kf4 Qc4+ 8.Kg5 Qc5+ 9.Kg4 Qd4+ 10.Kf5 Qc5+ 11.Ke4 Qc4+ 12.Ke3 Qc3+ 13.Kf4 Qc4+
  =  (0.01)   Depth: 21   00:00:49  103mN, tb=52812
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 a3 8.Bg5 Qd1+ 9.Kf2 Qd4+ 10.Be3 Qb2+ 11.Kf3 a2 12.Qf5+ Kg8 13.Qc8+ Kh7 14.Qh3+ Kg8 15.Qg3+ Kh7 16.Qh4+ Kg8 17.Qd8+ Kh7 18.Qd3+ Kg8 19.Qd8+
  =  (0.03)   Depth: 21   00:01:01  151mN, tb=64234
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 a3 8.Bg5 Qd1+ 9.Kf2 Qd4+ 10.Be3 Qb2+ 11.Kf3 a2 12.Qf5+ Kg8 13.Qc8+ Kh7 14.Qh3+ Kg8 15.Qg3+ Kh7 16.Qh4+ Kg8 17.Qd8+ Kh7 18.Qd3+ Kg8 19.Qd8+
  =  (0.03)   Depth: 21   00:01:03  152mN, tb=66127
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 22   00:01:18  170mN, tb=79663
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 22   00:01:28  177mN, tb=93021
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 23   00:01:45  193mN, tb=117409
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 23   00:02:00  206mN, tb=147376
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 24   00:02:28  229mN, tb=180881
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 24   00:02:56  254mN, tb=229861
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 25   00:03:36  294mN, tb=296551
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 25   00:04:05  322mN, tb=370689
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 26   00:05:08  380mN, tb=468287
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 26   00:05:59  426mN, tb=590159
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 27   00:07:16  538mN, tb=784905
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 27   00:08:03  596mN, tb=958765
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Kxh7 5.Kf4 a4 6.Qa5 Qd6+ 7.Kf3 Qd3+ 8.Kf2 a3 9.Qh5+ Kg8 10.Qg4+ Kh7 11.Qh4+ Kg8 12.Bf6 Qd2+ 13.Kg1 Qd1+ 14.Kf2 Qd2+
  =  (0.01)   Depth: 28   00:10:08  782mN, tb=1255392
- - By hsnksc77 (**) [tr] Date 2012-03-18 20:50
n2Bqk2/5p1p/5KP1/p7/8/8/2Q5/8 w - - 0 1


Analysis by Zappa Mexico II x64:

1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd5 a4 4.Kf5 Kxh7 5.Qh1+ Kg8 6.Qxa8
  =  (0.15)   Depth: 11/40   00:00:00  1105kN, tb=3
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kh3 Qf1+ 9.Kg3 Kxh7 10.Qxa5
  =  (0.17)   Depth: 11/40   00:00:00  1929kN, tb=8
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kh3 Qf1+ 9.Kg3 Kxh7 10.Qxa5
  =  (0.17)   Depth: 11/40   00:00:01  2094kN, tb=8
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kh3 Qe3+
  =  (0.17)   Depth: 12/40   00:00:01  2489kN, tb=16
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kh3 Qe3+
  =  (0.17)   Depth: 12/40   00:00:01  2885kN, tb=18
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kf4 Qf2+ 9.Ke5 Qe3+ 10.Kd6 Kxh7 11.Qxa5 Qe6+
  =  (0.20)   Depth: 13/40   00:00:01  4103kN, tb=58
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Qf4+ 6.Kh3 Qe3+ 7.Kg4 Qe2+ 8.Kf4 Qf2+ 9.Ke5 Qe3+ 10.Kd6 Kxh7 11.Qxa5 Qe6+
  =  (0.20)   Depth: 13/40   00:00:01  5062kN, tb=83
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh6 Qg7+ 6.Kh5 Qe5+ 7.Kg4 Kxh7 8.Qh1+ Kg8 9.Qg2 Qg7+ 10.Kh5 Qxg2 11.Bxa5
  =  (0.08)   Depth: 14/47   00:00:03  11441kN, tb=246
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh6 Qg7+ 6.Kh5 Qe5+ 7.Kg4 Kxh7 8.Qh1+ Kg8 9.Qg2 Qg7+ 10.Kh5 Qxg2 11.Bxa5
  =  (0.08)   Depth: 14/47   00:00:05  18793kN, tb=446
1.Qc8 Kg8 2.gxh7+ Kh8 3.Qxa8 Qe6+ 4.Kg5 Qe5+ 5.Kh4 Kxh7 6.Kh3 a4 7.Bh4 Qc3+ 8.Bg3 a3
  =  (0.05)   Depth: 15/47   00:00:09  39528kN, tb=896
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb6+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Kf7 Qc4+ 9.Ke7 Qe4+ 10.Kd6 Qd4+ 11.Qd5 Qxd5+ 12.Kxd5
  =  (0.09)   Depth: 15/49   00:00:12  49754kN, tb=1261
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Be7 Qb8 4.Qg5 Qb6+ 5.Kxf7 Qb3+ 6.Kf8 Qb8+ 7.Bd8 Qb4+ 8.Kf7 Qc4+ 9.Ke7 Qe4+ 10.Kd6 Qd4+ 11.Qd5 Qxd5+ 12.Kxd5
  =  (0.09)   Depth: 15/49   00:00:13  51771kN, tb=1363
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bd2 a3 6.Be3 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qf8+
  =  (0.05)   Depth: 16/51   00:00:23  88849kN, tb=3305
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bd2 a3 6.Be3 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qf8+
  =  (0.05)   Depth: 16/51   00:00:28  107mN, tb=4273
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Bc5 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qe8+ Kh7 10.Qxa8
  =  (0.10)   Depth: 17/52   00:00:33  125mN, tb=5443
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Bc5 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qe8+ Kh7 10.Qxa8
  =  (0.10)   Depth: 17/52   00:00:40  148mN, tb=7869
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Bc5 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qe8+ Kh7 10.Qxa8 Qf4+
  =  (0.09)   Depth: 18/55   00:00:56  206mN, tb=12103
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Bc5 Qg4 7.Qf8+ Kxh7 8.Qxf7+ Kh8 9.Qe8+ Kh7 10.Qxa8 Qf4+
  =  (0.09)   Depth: 18/55   00:01:23  316mN, tb=20260
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Qe5 Qb7 7.Bc3 Kxh7 8.Qf5+ Kg8 9.Qg4+ Kf8 10.Bb4+ Ke8 11.Qg8+ Kd7 12.Qxf7+ Kc8 13.Qf8+
  =  (0.14)   Depth: 19/57   00:01:45  393mN, tb=26141
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bb4 a3 6.Qe5 Qb7 7.Bc3 Kxh7 8.Qf5+ Kg8 9.Qg4+ Kf8 10.Bb4+ Ke8 11.Qg8+ Kd7 12.Qxf7+ Kc8 13.Qf8+
  =  (0.14)   Depth: 19/57   00:02:07  467mN, tb=34389
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bd2 a3 6.Qe5 Qb7 7.Bc3 Kxh7 8.Qf5+ Kg8 9.Qg4+ Kf8 10.Bb4+ Ke8 11.Qg8+ Kd7 12.Qxf7+ Kc8 13.Qf8+ Kc7 14.Bd6+
  =  (0.10)   Depth: 20/59   00:04:17  962mN, tb=77772
1.Qc5+ Kg8 2.gxh7+ Kh8 3.Qd6 a4 4.Ba5 Qc8 5.Bd2 a3 6.Qe5 Qb7 7.Bc3 Kxh7 8.Qf5+ Kg8 9.Qg4+ Kf8 10.Bb4+ Ke8 11.Qg8+ Kd7 12.Qxf7+ Kc8 13.Qf8+
  =  (0.10)   Depth: 20/59   00:07:25  1707mN, tb=137200
Parent - - By sensei (*) [fr] Date 2012-03-18 21:44
1. Qc8 Kg8 2. Bc7!! Qxc8 3. gxf7+ Kh8 4. Be5 Qc5 5. Bb2 Nc7 6. Ba1 a4 7. Bb2 a3 8. Ba1 a2 9. Bb2 a1=Q 10. Bxa1 Nd5+ 11. Ke6+ Nc3 12. Bxc3+ Qxc3 13. f8=Q# 1-0
Parent - - By DGB (**) [pt] Date 2012-03-18 22:18
WOW. It's beautiful.

Where did you get this stuff?
Parent - By sensei (*) [fr] Date 2012-03-19 17:44
http://www.yacpdb.org/?id=276295

There is only a difference with the Queen (Qa6 ---> Qc2)
- - By siah (***) Date 2012-03-21 04:57
Engines cann't solve this simple mate don't worth a penny.
Parent - - By Pia (***) [ru] Date 2012-03-21 22:04
Rybka worth two penny! Look

New game
n2Bqk2/5p1p/5KP1/p7/8/8/2Q5/8 w - - 0 1


Analysis by Deep Rybka 4.1 w32: (Score offset millipawns = +9999; White Queen value = -9999)

1.Qc2-c5+ Kf8-g8 2.g6xh7+ Kg8-h8 3.Qc5-e5 Qe8-d7 4.Kf6-g5+ Kh8xh7 5.Qe5-f5+ Qd7xf5+ 6.Kg5xf5 a5-a4 7.Kf5-e4 Kh7-g6 8.Ke4-d3 a4-a3 9.Kd3-c3 a3-a2 10.Kc3-b2 Kg6-f5 11.Bd8-e7 Kf5-e6
  +-  (7.07)   Depth: 6   00:00:00  3kN
1.Qc2-c8 Kf8-g8 2.Bd8-e7 Qe8xc8 3.g6xf7+ Kg8-h8 4.f7-f8Q+ Qc8xf8+ 5.Be7xf8 Kh8-g8 6.Bf8-c5 a5-a4 7.Kf6-e7 Na8-c7 8.Ke7-d6 Nc7-b5+
  +-  (8.18)   Depth: 6   00:00:00  3kN
1.Qc2-c8 Kf8-g8 2.Bd8-e7 Qe8xc8 3.g6xf7+ Kg8-h8 4.f7-f8Q+ Qc8xf8+ 5.Be7xf8 Kh8-g8 6.Bf8-c5 a5-a4 7.Kf6-e7 Na8-c7 8.Ke7-d6 Nc7-b5+
  +-  (8.18)   Depth: 7   00:00:00  3kN
1.Qc2-c8 Kf8-g8 2.Bd8-e7 Qe8xc8 3.g6xf7+ Kg8-h8 4.f7-f8Q+ Qc8xf8+ 5.Be7xf8 Kh8-g8 6.Bf8-c5 a5-a4 7.Kf6-e7 Na8-c7 8.Ke7-d6 Nc7-b5+ 9.Kd6-c6 Nb5-c3 10.Bc5-b4 Nc3-e4
  +-  (8.06)   Depth: 8   00:00:00  4kN, tb=2
1.Qc2-c5+ Kf8-g8 2.g6xh7+ Kg8-h8 3.Qc5-e5 Qe8-d7 4.Bd8xa5 Na8-b6 5.Kf6-g5+ Kh8xh7 6.Qe5-f5+ Qd7xf5+ 7.Kg5xf5
  +-  (8.13)   Depth: 8   00:00:00  16kN, tb=16
1.Qc2-c5+ Kf8-g8 2.g6xh7+ Kg8-h8 3.Qc5-e5 Qe8xe5+ 4.Kf6xe5 a5-a4 5.Ke5-d4 Kh8xh7 6.Kd4-c4 f7-f5 7.Bd8-e7 Kh7-g6 8.Be7-d6 Na8-b6+ 9.Kc4-b5 Nb6-c8 10.Bd6-b4
  +-  (8.13)   Depth: 9   00:00:00  16kN, tb=16
1.Qc2-c5+ Kf8-g8 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+ 4.Kf6xe5 a5-a4 5.Ke5-d4 Kh8xh7 6.Kd4-c4 f7-f5 7.Kc4-b4 Kh7-g6 8.Bd8-h4 Na8-b6 9.Bh4-f2 Nb6-d5+ 10.Kb4-a3 Nd5-c3 11.Bf2-e1 Nc3-b5+ 12.Ka3-b4
  +-  (8.07)   Depth: 10   00:00:00  25kN, tb=26
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5 a5-a4[] 5.Ke5-d4 Kh8xh7 6.Kd4-c4 f7-f5 7.Bd8-h4 Kh7-g6 8.Kc4-b4 Na8-b6 9.Bh4-f2 Nb6-d5+ 10.Kb4-c4 f5-f4 11.Kc4xd5 a4-a3
  +-  (7.76)   Depth: 11   00:00:00  58kN, tb=96
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5 a5-a4[] 5.Ke5-d4 Kh8xh7 6.Kd4-c4 f7-f5 7.Bd8-h4 Kh7-g6 8.Kc4-b4 Na8-b6 9.Bh4-f2 Nb6-d5+ 10.Kb4-c4 f5-f4 11.Kc4xd5 a4-a3
  +-  (7.76)   Depth: 12   00:00:00  68kN, tb=100
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5 a5-a4[] 5.Bd8-e7 Kh8xh7[] 6.Be7-a3 Na8-c7[] 7.Ke5-e4 Kh7-g6 8.Ke4-d3 f7-f5 9.Ba3-d6 Nc7-e6 10.Bd6-a3 f5-f4 11.Kd3-e4 Kg6-g5 12.Ke4-e5
  +-  (7.16)   Depth: 13   00:00:01  240kN, tb=505
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5 a5-a4[] 5.Bd8-e7 Kh8xh7[] 6.Be7-a3 Na8-c7[] 7.Ke5-f5 Nc7-b5 8.Ba3-b2 a4-a3 9.Bb2-a1 a3-a2 10.Kf5-g5 Nb5-c7 11.Kg5-f5 Nc7-e6 12.Kf5-f6 Ne6-c7 13.Kf6-g5 Nc7-d5 14.Kg5-f5 Nd5-e3+ 15.Kf5-e4 Ne3-c2 16.Ba1-c3
  +-  (6.03)   Depth: 14   00:00:03  646kN, tb=1604
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5 a5-a4[] 5.Bd8-e7 Kh8xh7[] 6.Be7-a3 Na8-c7[] 7.Ke5-f5 Nc7-b5 8.Ba3-b2 a4-a3 9.Bb2-a1 a3-a2 10.Kf5-g5 Nb5-c7 11.Kg5-f5 Nc7-b5 12.Kf5-g5 Nb5-c7 13.Kg5-f5 Nc7-b5 14.Kf5-g5 Nb5-c7 15.Kg5-f5 Nc7-b5 16.Kf5-g5
  +-  (6.03)   Depth: 15   00:00:04  837kN, tb=1899
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e7 Qe8-c6+ 4.Kf6xf7 Qc6-f3+ 5.Kf7-g6 Qf3-g4+ 6.Qe7-g5 Qg4-e4+ 7.Kg6-f7 Qe4-b7+ 8.Kf7-f8 Qb7-b4+ 9.Qg5-e7 Qb4-g4 10.Qe7-e5+ Kh8xh7[] 11.Qe5-h2+ Kh7-g6 12.Qh2-d6+ Kg6-h7 13.Qd6-d3+ Kh7-h6[] 14.Qd3-a6+ Kh6-h7 15.Qa6-b7+ Kh7-h6 16.Qb7-h1+
  +-  (6.03)   Depth: 16   00:00:05  1154kN, tb=2687
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+ 4.Kf6xe5[] a5-a4 5.Bd8-e7 Kh8xh7 6.Be7-a3 Na8-c7 7.Ke5-f5 Nc7-b5 8.Ba3-b2 a4-a3 9.Bb2-a1 a3-a2 10.Kf5-g5 Nb5-c7 11.Kg5-f6 Nc7-b5 12.Kf6-f5 Nb5-c7 13.Ba1-c3 Nc7-d5 14.Bc3-a1 Nd5-c7 15.Ba1-c3 Nc7-d5 16.Bc3-a1
  +-  (6.01)   Depth: 17   00:00:18  3549kN, tb=6560
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+ 4.Kf6xe5[] a5-a4 5.Bd8-e7 Kh8xh7 6.Be7-a3 Na8-c7 7.Ba3-b2 Kh7-g6 8.Bb2-a1 a4-a3[] 9.Ke5-d6 a3-a2 10.Kd6-d7 Nc7-e6 11.Kd7-c6 f7-f5 12.Kc6-d7 Ne6-c7 13.Kd7-d8 Nc7-b5 14.Kd8-d7 f5-f4 15.Kd7-c6 Nb5-a7+ 16.Kc6-d5
  +-  (4.24)   Depth: 18   00:00:39  8461kN, tb=21830
1.Qc2-c8 Kf8-g8 2.Bd8-e7 Qe8xc8[] 3.g6xf7+ Kg8-h8[] 4.f7-f8Q+[] Qc8xf8+[] 5.Be7xf8[] Kh8-g8[] 6.Bf8-a3 a5-a4[] 7.Kf6-f5 Na8-c7[] 8.Ba3-b2 a4-a3 9.Bb2-a1 Nc7-b5 10.Kf5-g5 a3-a2 11.Kg5-h5 Kg8-f7 12.Kh5-g4 h7-h5+ 13.Kg4-f4 Nb5-d4[] 14.Ba1-b2 Nd4-c2
  +-  (4.80)   Depth: 18   00:00:42  9221kN, tb=22780
1.Qc2-c8 Kf8-g8 2.Bd8-e7 Qe8xc8[] 3.g6xf7+ Kg8-h8[] 4.f7-f8Q+[] Qc8xf8+[] 5.Be7xf8[] Kh8-g8[] 6.Bf8-a3 a5-a4[] 7.Kf6-f5 Na8-c7[] 8.Ba3-b2 a4-a3 9.Bb2-a1 Nc7-b5 10.Kf5-g5 a3-a2 11.Kg5-h5 Kg8-f7 12.Kh5-g4 h7-h5+ 13.Kg4-f4 Nb5-d4[] 14.Ba1-b2 Nd4-c2
  +-  (4.80)   Depth: 19   00:00:42  9224kN, tb=22782
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+ 4.Kf6xe5[] a5-a4 5.Bd8-e7 Kh8xh7 6.Be7-a3 Na8-c7 7.Ba3-b2 Kh7-g6 8.Bb2-a1 a4-a3 9.Ke5-f4 a3-a2 10.Kf4-g3 f7-f5 11.Kg3-f3 Nc7-e6 12.Kf3-e2 f5-f4 13.Ke2-d2 Kg6-f5 14.Kd2-e1 Kf5-e4 15.Ke1-e2 Ne6-d4+ 16.Ke2-f2
  +-  (4.24)   Depth: 20   00:01:20  18453kN, tb=46507
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Qc5-e5 Qe8xe5+[] 4.Kf6xe5[] a5-a4 5.Bd8-e7 Kh8xh7 6.Be7-a3 Na8-c7 7.Ba3-b2 Kh7-g6 8.Bb2-a1 a4-a3 9.Ke5-f4 a3-a2 10.Kf4-g3 f7-f5 11.Kg3-f4 Nc7-e6+ 12.Kf4-g3 Kg6-g5 13.Kg3-f2 Kg5-f4 14.Kf2-e2 Kf4-e4 15.Ba1-c3 f5-f4 16.Bc3-a1
  +-  (4.20)   Depth: 21   00:02:33  34674kN, tb=106257
1.Qc2-c5+ Kf8-g8[] 2.g6xh7+ Kg8-h8[] 3.Bd8-e7 Na8-b6[] 4.Qc5xb6 Qe8-a8[] 5.Qb6-e3 Qa8-a6+ 6.Kf6xf7 Qa6-c4+[] 7.Kf7-g6 Qc4-c2+[] 8.Kg6-h5 Qc2xh7+ 9.Kh5-g5[] Qh7-g8+ 10.Kg5-f6 Qg8-g7+ 11.Kf6-f5 Qg7-h7+[] 12.Kf5-e6 Qh7-g6+ 13.Be7-f6+ Kh8-g8 14.Qe3-f3 Qg6-e8+ 15.Ke6-f5 Qe8-b5+ 16.Kf5-g6
  +/-  (1.11)   Depth: 22   00:27:05  354mN, tb=1096056
1.Qc2-c8 Kf8-g8 2.Bd8-c7[] Qe8xc8 3.g6xf7+ Kg8-h8 4.Bc7-e5[] Qc8-c5 5.Be5-b2[] Na8-c7 6.Bb2-a1[] a5-a4 7.Ba1-b2[] a4-a3 8.Bb2-a1[] a3-a2 9.Ba1-b2[] a2-a1Q 10.Bb2xa1[] Nc7-d5+ 11.Kf6-e6+[] Nd5-c3 12.Ba1xc3+ Qc5xc3 13.f7-f8Q#[]
  +-  (#80 !)   Depth: 22   00:27:05  354mN, tb=1096056

(Cut...)

1.Qc2-c8 Kf8-g8 2.Bd8-c7[] Qe8xc8 3.g6xf7+ Kg8-h8 4.Bc7-e5[] Qc8-c5 5.Be5-b2[] Na8-c7 6.Bb2-a1[] a5-a4 7.Ba1-b2 a4-a3 8.Bb2-a1 a3-a2 9.Ba1-b2 a2-a1Q 10.Bb2xa1 Nc7-d5+ 11.Kf6-e6+[] Nd5-c3 12.Ba1xc3+[] Qc5xc3 13.f7-f8Q#[]
  +-  (#14)   Depth: 35   01:00:35  981mN, tb=1644778
Parent - By Barnard (Bronze) Date 2012-03-21 22:21
mervellous!rybka in 10 piece position and in a depth 32 and using tablebases,found a mate in 13 in a problem that is check mate in 13...
Parent - - By siah (***) Date 2012-03-23 07:23
What does tablebases do exactly? to estimate its worth.:twisted:
Parent - - By Barnard (Bronze) Date 2012-03-24 01:54
is an ironical question?
Parent - - By siah (***) Date 2012-03-24 06:30 Edited 2012-03-24 06:32
No, I read the wikipedia about it, but was not enough. and the number of tb is what?
Parent - - By Barnard (Bronze) Date 2012-03-24 15:33
tablebases makes play perfect endgames...and saying 'perfect',i mean,literally,perfect

until now,only 6 pieces endgames was generated,including Kings (and some 7 pieces),into different format of tablebases

some formats like Nalimov tablebases gives distance under check-mate,other formats like Thompson tablebases (or FinalGen tablebases) gives distance under pawn promotion (or in some cases,under mate),and other propietaire formats,like chessmaster are rarely used (only by chessmaster,like you can deduct)

the number of Tb is the harddrive space needed...Tb is a measurement,is 1024 Gb

for example,the complete 6 men nalimov tablebases uses 1150 Gb,or the same,1 Tb and 150 Gb

FinalGel is able to buil tablebases upon to 14 pieces (as far as i tried,but i can be wrong),with the major limitation of only 1 piece (excluding kings) for each side,and the Tb needed to build that databases are really really big;you can see the pic i uploaded,that one tablebases need near than 600 Tb to be generated
Parent - - By siah (***) Date 2012-03-25 07:23
No, I mean tb=1644778 which is like search.
Parent - By Barnard (Bronze) Date 2012-03-26 00:10
it means the engine accesed 1644778 times the tablebases because 1644778 times arrived to a position with 6 pieces or less
Parent - By Pia (***) [ru] Date 2012-03-25 04:35

>and the number of tb is what?


I'm used 5-men TB stored on USB flash drive and tell Rybka to frequently access Nalimov (256), so such big number of 1 mio TB access made.
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