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Subject: Re: Does any "regular" chess program see White's win?

Author: Slater Wold

Date: 18:23:26 02/12/04

Go up one level in this thread

On February 12, 2004 at 14:37:30, Roy Eassa wrote:

>[d] n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - -
>1. Bc7!! Qxc8 2. gxf7+ Kh8 3. Be5 Qc5! 4. Bb2!! Nc7 5. Ba1!! a4 6. Bb2 a3
>7. Ba1 a2 8. Bb2 a1=Q 9. Bxa1 zugzwang!
>
>Besides programs specifically designed to solve mates, does any program find
>this?

n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1

Analysis by Deep Fritz 8:

1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kh6 Qg7+ 5.Kh5 Qe5+ 6.Kg4 Kxh7
  =  (0.00)   Depth: 7/18   00:00:00  83kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kh6 Qg7+ 5.Kh5 Qe5+ 6.Kg4 Kxh7
  =  (0.00)   Depth: 8/21   00:00:00  153kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kh6 Qg7+ 5.Kh5 Qe5+ 6.Kg4 Kxh7
  =  (0.00)   Depth: 9/27   00:00:00  373kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 Qe2+ 6.Kg3 Qe3+ 7.Kg2 f5
8.Qd8
  =  (0.01)   Depth: 10/27   00:00:00  1261kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 Qe2+ 6.Kg3 Qe3+ 7.Kg2 f5
8.Qd8 Kg6 9.Qd6+
  =  (0.01)   Depth: 11/30   00:00:02  3606kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 12/31   00:00:05  8461kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 13/35   00:00:13  22418kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 14/41   00:00:33  55226kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 15/44   00:01:23  139135kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 16/45   00:03:30  351854kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 17/46   00:09:21  936858kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 18/49   00:24:21  2443718kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 19/55   01:04:10  6454932kN
1.gxh7+ Kh8 2.Qxa8 Qe6+ 3.Kg5 Qe5+ 4.Kg4 Kxh7 5.Bxa5 f5+ 6.Kg5 Qg7+ 7.Kxf5 Qf8+
8.Qxf8
  =  (0.00)   Depth: 20/56   02:51:21  17271299kN

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