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Subject: Re: Little bug for ChessTiger15.0........tablebases

Author: Chessfun

Date: 10:22:05 07/03/03

Go up one level in this thread


On July 03, 2003 at 08:28:30, Uri Blass wrote:

>On July 03, 2003 at 07:32:42, Chessfun wrote:
>
>>On July 03, 2003 at 05:42:52, George Tsavdaris wrote:
>>
>>>On July 03, 2003 at 04:16:06, fabio calamassi wrote:
>>>
>>>>On July 02, 2003 at 19:41:48, George Tsavdaris wrote:
>>>>
>>>>>In this position Chesstiger 14.0 and ChessTiger 15.0 don't find the winning
>>>>>move 1.fxg8B with win after: 1...Bxc7 2.Nd4! and mate in few moves.
>>>>>They do not also find the 2.Nd4!
>>>>>I remember ChessTiger 14.0 had problems with some Knight-Bishop endgames and
>>>>>it was advertised that with Tiger 15.0 these problems were solved. True but
>>>>>it seems that there are still some small? problems-bugs like this to solve
>>>>>until ChessTiger 16.0.
>>>>>
>>>>>[D]kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1
>>>>
>>>>
>>>>     Hello,
>>>>    on my P4 2,5 GHZ 512 RAM, CT14 and 15 find the winning move instantly!!
>>>
>>>Can you please the analysis of both CT-14&15. In my computer CT15 want to
>>>play Nc5 which draws. If you have the right position and in your computer
>>>CT-14&15 find the 1.fxg8B then something is wrong with my computer although
>>>this will be absolutely strange.
>>
>>It needs tablebaases to find it.
>>
>>With 3,4 and 5 piece
>>
>>New game
>>kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1
>>
>>Analysis by Chess Tiger 15.0:
>>
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 6   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 6   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 9   00:00:00  6kN, tb=9
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 10   00:00:00  9kN, tb=18
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 11   00:00:00  15kN, tb=45
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 12   00:00:00  31kN, tb=107
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 13   00:00:00  90kN, tb=248
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 14   00:00:01  132kN, tb=509
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 15   00:00:01  284kN, tb=1066
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 16   00:00:05  2381kN, tb=1916
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 17   00:00:06  3189kN, tb=3178
>>1.fxg8B Bxc7
>>  +-  (#6)   Depth: 18   00:00:09  4443kN, tb=5424
>>
>>(Bird, Barrie 03.07.2003)
>>
>>Without tablebases
>>
>>1.Nd4 Rc8 2.cxb8Q+ Kxb8 3.Ne6 Rc6+ 4.Kb5 Rxe6 5.f8Q+ Kc7
>>  ±  (1.20)   Depth: 4   00:00:00  2kN
>>1.Nc5 Rc8 2.cxb8Q+ Kxb8 3.Kb5 Kc7
>>  +-  (3.50)   Depth: 4   00:00:00  3kN
>>1.Nc5 Rc8 2.cxb8Q+ Kxb8 3.Kb5 Kc7 4.Ne6+ Kd6
>>  +-  (3.50)   Depth: 5   00:00:00  3kN
>>1.Nc5 Rc8 2.cxb8Q+ Kxb8 3.Kb5 Kc7 4.Ne6+ Kd6
>>  +-  (3.50)   Depth: 6   00:00:00  3kN
>>1.Nc5 Rc8 2.cxb8Q+ Kxb8 3.Kb6 Rd8 4.Nd7+ Kc8 5.Kc6 Rxd7 6.f8Q+ Rd8
>>  +-  (1.52)   Depth: 7   00:00:00  6kN
>>1.Nc5 Rc8 2.cxb8Q+ Kxb8 3.Kb6 Rd8 4.Kc6
>>  +-  (2.42)   Depth: 8   00:00:00  10kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Kd7 5.Ng5 Ke7
>>  =  (0.08)   Depth: 8   00:00:00  31kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Kd7 5.Ng5 Ke7 6.Kb7
>>  =  (0.08)   Depth: 9   00:00:00  36kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 10   00:00:00  47kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 11   00:00:00  75kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 12   00:00:00  116kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 13   00:00:00  172kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 14   00:00:00  274kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 15   00:00:00  441kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 16   00:00:00  727kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 17   00:00:01  1205kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 18   00:00:02  2046kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7
>>  =  (0.00)   Depth: 19   00:00:04  3625kN
>>1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Ka7 Rh7 5.Ng5 Rxf7+ 6.Nxf7 Kd7 7.Kb6 Ke6
>>8.Kc7 Kxf7
>>  =  (0.00)   Depth: 20   00:00:07  6665kN
>>
>>(Bird, Barrie 03.07.2003)
>>
>>Sarah.
>
>
>Movei does not need tablebases for that problem

The user asked specifically about Tiger 14 and 15. I'm sure most engines will
not have a problem.

New game
kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1

Analysis by Nimzo 8:
1.fxg8B
  +-  (1.43)   Depth: 3/14   00:00:00
1.fxg8B Bxc7 2.Nd4
  +-  (1.52)   Depth: 3/14   00:00:00
1.fxg8B Bxc7 2.Kb5 Ka7 3.Kc5
  +-  (1.43)   Depth: 5/17   00:00:00
1.fxg8B Bxc7 2.Nd4 Bd8 3.Bd5+ Kb8 4.Kb5
  +-  (1.50)   Depth: 6/19   00:00:00
1.fxg8B Bxc7 2.Nd4 Kb8 3.Nc6+ Ka8 4.Nb4 Kb8
  +-  (1.48)   Depth: 7/20   00:00:00
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Bd6 4.Na5 Kb8
  +-  (1.43)   Depth: 8/22   00:00:00
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Bd6 4.Be6 Bf8 5.Nd4
  +-  (1.51)   Depth: 9/23   00:00:00
1.fxg8B Bxc7 2.Nd4 Be5 3.Nc6 Bc3 4.Kb6 Bg7 5.Kc7 Bf8
  +-  (1.46)   Depth: 10/25   00:00:00
1.fxg8B Bxc7 2.Nd4 Bh2 3.Nc6 Bg1 4.Bd5 Bb6
  +-  (1.70)   Depth: 11/26   00:00:00
1.fxg8B
  +-  (1.95)   Depth: 12/28   00:00:00
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bd8
  +-  (2.54)   Depth: 12/28   00:00:00
1.fxg8B
  +-  (2.09)   Depth: 13/29   00:00:00  626kN
1.fxg8B
  +-  (1.49)   Depth: 13/29   00:00:01  626kN
1.fxg8B
  +-  (1.50)   Depth: 13/29   00:00:01  626kN
1.fxg8B
  +-  (2.10)   Depth: 13/29   00:00:01  626kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bf8
  +-  (4.49)   Depth: 13/29   00:00:01  626kN
1.fxg8B
  +-  (4.74)   Depth: 14/31   00:00:01  626kN
1.fxg8B
  +-  (5.34)   Depth: 14/31   00:00:01  626kN
1.fxg8B
  +-  (7.74)   Depth: 14/31   00:00:01  626kN
1.fxg8B Bxc7 2.Nd4 Be5 3.Nc6 Bb2 4.Be6 Ba3
  +-  (#6)   Depth: 14/31   00:00:02  2365kN

(Bird, Barrie 03.07.2003)

New game
kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1

Analysis by Crafty 19.03:
1.fxg8B Bxc7 2.Nc5 Kb8 3.Nd7+ Kc8
  ±  (1.32)   Depth: 5/11   00:00:00
1.fxg8B Bxc7 2.Nd4 Kb8 3.Nc6+ Ka8 4.Be6
  ±  (1.33)   Depth: 6/13   00:00:00  7kN
1.fxg8B Bxc7 2.Nd4 Kb8 3.Nc6+ Ka8 4.Be6 Bd6
  ±  (1.33)   Depth: 7/14   00:00:00  10kN
1.fxg8B Bxc7 2.Nd4 Kb8 3.Nc6+ Ka8 4.Be6 Bd6 5.Nd8
  ±  (1.33)   Depth: 8/14   00:00:00  17kN
1.fxg8B Bxc7 2.Nd4 Kb8 3.Nc6+ Ka8 4.Be6 Bd6 5.Kb6 Bh2
  ±  (1.33)   Depth: 9/16   00:00:00  32kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2
  ±  (1.33)   Depth: 10/16   00:00:00  69kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2
  +-  (1.73)   Depth: 11/19   00:00:00  123kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2
  +-  (2.12)   Depth: 12/22   00:00:00  299kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2
  +-  (2.51)   Depth: 13/25   00:00:00  634kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2
  +-  (2.90)   Depth: 14/27   00:00:01  1503kN
1.fxg8B Bxc7 2.Nd4 Bd6 3.Nc6 Bh2 4.Be6 Bg1 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 14/27   00:00:02  2642kN

(Bird, Barrie 03.07.2003)
New game
kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1

Analysis by Comet B50:
1.Nc5 Rc8 2.Ne6 Bxc7 3.f8N
  +-  (4.16)   Depth: 9/24   00:00:00  448kN
1.Nc5 Rh8 2.f8Q Rxf8 3.c8R
  +-  (3.89)   Depth: 9/24   00:00:01  642kN
1.Nc5 Rh8 2.f8Q Rxf8 3.c8R
  +-  (3.62)   Depth: 9/24   00:00:01  699kN
1.Nc5 Rh8 2.c8Q Rxc8 3.Ne6 Be5 4.f8N
  +-  (3.23)   Depth: 9/24   00:00:01  763kN
1.Nc5 Rd8 2.cxd8N Bc7 3.f8Q Kb8
  +-  (3.23)   Depth: 9/24   00:00:01  825kN
1.Nc5 Rh8 2.f8Q Rxf8 3.c8R
  +-  (3.09)   Depth: 10/24   00:00:01  876kN
1.Nc5 Rh8 2.c8Q Rxc8 3.Ne6 Be5 4.f8N
  +-  (2.82)   Depth: 10/24   00:00:01  1242kN
1.Nc5 Rh8 2.cxb8Q+ Kxb8 3.Ne6 Kc8 4.Kb5 Rh5+ 5.Ng5 Rxg5+ 6.Kb6 Rg6+ 7.Ka5 Rf6
8.f8Q+
  +-  (2.55)   Depth: 10/24   00:00:01  1254kN
1.Nc5 Rh8 2.f8Q Rxf8 3.c8R
  +-  (2.16)   Depth: 10/24   00:00:01  1279kN
1.Nc5 Rh8 2.c8Q Rxc8 3.f8N
  +-  (1.65)   Depth: 10/24   00:00:01  1305kN
1.fxg8N Bxc7 2.Nd4 Kb8 3.Nc6+ Kc8 4.Nge7+ Kd7 5.Kb7 Bd6 6.Nd5 Ke6 7.Nb6
  +-  (1.94)   Depth: 10/24   00:00:02  1467kN
1.fxg8N Bxc7 2.Ne7 Kb8 3.Kb5 Bd6
  +-  (1.99)   Depth: 11/24   00:00:02  1729kN
1.fxg8B Ba7 2.c8Q+ Bb8 3.Qxb8+ Kxb8 4.Be6 Kc7 5.Bf7 Kc6 6.Be8+ Kd6 7.Bg6 Ke5
8.Bf7 Ke4
  +-  (5.68)   Depth: 11/24   00:00:02  1911kN
1.fxg8B Ba7 2.c8Q+ Bb8 3.Qxb8+ Kxb8 4.Be6 Kc7 5.Bf7 Kc6 6.Be8+ Kd5 7.Bh5 Ke4
8.Bf7 Kf3
  +-  (6.04)   Depth: 11/24   00:00:02  1912kN
1.fxg8B Ba7 2.c8Q+ Bb8 3.Qxb8+ Kxb8 4.Be6 Kc7 5.Bg4 Kd6 6.Bf3 Ke5 7.Bc6 Kf4
8.Bb7
  +-  (6.45)   Depth: 11/24   00:00:02  1975kN
1.fxg8B Bxc7 2.Nd4 Ba5 3.Kxa5 Kb7 4.Bd5+ Kc8 5.Nf5 Kd7 6.Ba8 Ke6
  +-  (6.90)   Depth: 11/24   00:00:03  2314kN
1.fxg8B Ba7 2.c8Q+ Bb8 3.Qxb8+ Kxb8 4.Kb6 Kc8 5.Be6+ Kd8 6.Nd4 Ke7 7.Kc6 Kf6
8.Kd6 Kg5
  +-  (7.71)   Depth: 11/24   00:00:03  3148kN
1.fxg8B Ba7 2.c8Q+ Bb8 3.Kb5 Ka7 4.Be6 Bd6 5.Qd8 Bb4 6.Kxb4 Kb7 7.Qd7+ Kb6
  +-  (22.54)   Depth: 11/24   00:00:04  3875kN
1.fxg8B Ba7 2.Nd4 Bb8 3.c8N Bd6 4.Nc6 Bc5 5.Nb6+ Bxb6 6.Be6
  +-  (#7)   Depth: 11/24   00:00:04  3879kN
1.fxg8B Bxc7 2.Nd4 Bb6 3.Nc6 Bd8 4.Be6 Be7 5.Bc8 Bf8 6.Bb7#
  +-  (#5)   Depth: 11/24   00:00:04  4805kN

(Bird, Barrie 03.07.2003)
New game
kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1

Analysis by Ruffian 1.0.1:

1.fxg8Q
  +-  (12.75)   Depth: 1/2   00:00:00
1.fxg8Q
  =  (0.00)   Depth: 2/4   00:00:00
1.fxg8B Bxc7
  +-  (1.51)   Depth: 2/4   00:00:00
1.fxg8B Bxc7 2.Be6
  +-  (1.86)   Depth: 3/6   00:00:00
1.fxg8B Bxc7 2.Be6 Kb8
  +-  (1.66)   Depth: 4/6   00:00:00
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Be5 4.Kc5
  +-  (1.94)   Depth: 5/9   00:00:00
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Be5 4.Kc6 Kc8
  +-  (1.80)   Depth: 6/11   00:00:00  7kN
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Be5 4.Kc6 Kc8 5.Nc5
  +-  (1.91)   Depth: 7/13   00:00:00  12kN
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Bf4 4.Kc6 Be5 5.Be6 Ka7
  +-  (1.92)   Depth: 8/14   00:00:00  25kN
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Kc8 4.Kc6 Be5 5.Nc5 Kd8 6.Nd7
  +-  (1.94)   Depth: 9/16   00:00:00  61kN
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Kc8 4.Kc6 Kd8 5.Nd4 Be5 6.Nf5 Bc3
  +-  (1.91)   Depth: 10/18   00:00:00  109kN
1.fxg8B Bxc7 2.Bd5+ Kb8 3.Kb5 Bf4 4.Kc6 Be3 5.Kd6 Kc8 6.Be6+ Kd8 7.Bd5 Bf4+
8.Ke6
  +-  (1.92)   Depth: 11/20   00:00:00  230kN
1.fxg8B Bxc7 2.Be6 Kb8 3.Kb5 Bf4 4.Kc6 Be3 5.Kd6 Bf4+ 6.Kd5 Kc7 7.Nc5
  +-  (1.91)   Depth: 12/21   00:00:01  625kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Bd5+ Kb8 4.Ne6 Be5 5.Kb6 Bc3 6.Kc5 Kc8 7.Kd6 Bb4+ 8.Ke5
Kd7
  +-  (2.03)   Depth: 13/23   00:00:01  1157kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 14/26   00:00:01  1597kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 15/26   00:00:01  1748kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 16/26   00:00:01  1885kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 17/26   00:00:01  2070kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 18/26   00:00:02  2352kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 19/26   00:00:02  2716kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 20/26   00:00:02  2963kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 21/26   00:00:03  3474kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 22/26   00:00:03  4121kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 23/26   00:00:03  4562kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 24/26   00:00:04  5156kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 25/26   00:00:04  5788kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 26/26   00:00:04  6398kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 27/26   00:00:05  7008kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 28/26   00:00:05  7619kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 29/26   00:00:05  8230kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 30/26   00:00:06  8841kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 31/26   00:00:06  9452kN
1.fxg8B Bxc7 2.Nd4 Bd8 3.Nc6 Bf6 4.Be6 Bh4 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 32/26   00:00:06  10063kN

(Bird, Barrie 03.07.2003)
New game
kb4r1/2P2P2/K7/8/8/1N6/8/8 w - - 0 1

Analysis by Deep Sjeng 1.5:

1.fxg8B Bxc7 2.Bd5+ Kb8 3.Nc5
  +-  (4.08)   Depth: 3/7   00:00:00
1.fxg8B Bxc7 2.Be6 Kb8 3.Nc5
  +-  (4.09)   Depth: 4/9   00:00:00
1.fxg8B Bxc7 2.Be6 Be5 3.Nc5 Kb8
  +-  (4.03)   Depth: 5/11   00:00:00
1.fxg8B Bxc7 2.Be6 Bf4 3.Nc5 Be3 4.Nd7
  +-  (4.06)   Depth: 6/16   00:00:00  9kN
1.fxg8B Bxc7 2.Be6 Bf4 3.Nc5 Kb8 4.Nd7+ Kc7 5.Kb5
  +-  (4.06)   Depth: 7/16   00:00:00  16kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Bd2 4.Be6 Be3 5.Ne5
  +-  (4.07)   Depth: 8/16   00:00:00  35kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Be3 4.Be6 Bc5 5.Ne5 Be3
  +-  (4.07)   Depth: 9/17   00:00:00  57kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Be3 4.Be6 Bc5 5.Ne5 Be3 6.Nd7 Bd4
  +-  (4.06)   Depth: 10/19   00:00:00  114kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Be3 4.Be6 Bc5 5.Ne5 Be3 6.Nd7 Bd4
  +-  (4.08)   Depth: 11/20   00:00:00  215kN
1.fxg8B Bxc7 2.Nd4 Bf4 3.Nc6 Be3 4.Be6 Bf4 5.Kb6 Be3+ 6.Kc7 Bf4+ 7.Kd7 Kb7 8.Ne7
  +-  (4.09)   Depth: 12/22   00:00:01  367kN
1.fxg8B
  +-  (4.49)   Depth: 13/23   00:00:01  565kN
1.fxg8B Bxc7 2.Nd4 Bb6 3.Kxb6 Kb8 4.Be6 Ka8 5.Kc7 Ka7 6.Bc8 Ka8 7.Bb7+ Ka7
8.Nc6#
  +-  (#250)   Depth: 13/23   00:00:01  1459kN
1.fxg8B
  =  (0.08)   Depth: 14/33   00:00:15  15180kN
1.fxg8B Bxc7 2.Nd4 Bb6 3.Nc6 Bc5 4.Be6 Be3 5.Bc8 Bf2 6.Bb7#
  +-  (#6)   Depth: 14/33   00:00:16  16145kN

(Bird, Barrie 03.07.2003)





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