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Subject: Re: How long to find White's winning move?

Author: Gian-Carlo Pascutto

Date: 06:56:47 01/03/02

Go up one level in this thread


On January 03, 2002 at 08:29:27, Lin Harper wrote:

>   The five year old Genius5 found b4 more or less instantly. Even
>  the older (free) Genius2 found it in a fraction of a second.

Only engine that comes close is Doctor 3:

New game
r4b1k/pp3Ppp/n1p5/2q1B3/2r5/6RP/PP2Q1P1/5R1K w - - 0 1

Analysis by Doctor? 3.0:

1.Qxc4 Qxc4
  -+  (-6.13)   Depth: 1/3   00:00:00
1.Bxg7+ Bxg7
  -+  (-4.77)   Depth: 1/3   00:00:00
1.a3
  -+  (-2.79)   Depth: 1/4   00:00:00
1.b3
  -+  (-2.74)   Depth: 1/4   00:00:00
1.Rc3 Rxc3 2.Bxc3
  -+  (-2.68)   Depth: 1/4   00:00:00
1.Rd3
  -+  (-2.59)   Depth: 1/4   00:00:00
1.Rd3
  -+  (-2.59)   Depth: 1/4   00:00:00
1.Rd3
  -+  (-2.59)   Depth: 1/4   00:00:00
1.Rd3 Rc2
  -+  (-2.65)   Depth: 4/7   00:00:00
1.Bxg7+ Bxg7 2.Qe8+ Qf8
  -+  (-4.34)   Depth: 4/11   00:00:00
1.Rxg7 Bxg7 2.f8Q+ Rxf8 3.Rxf8+ Qxf8 4.Bxg7+ Qxg7 5.Qxc4 Qxb2
  -+  (-4.18)   Depth: 4/11   00:00:00
1.Rc3 Rxc3 2.Bxc3 Nb4
  -+  (-2.70)   Depth: 4/11   00:00:00
1.Rgf3 Rc2
  -+  (-2.66)   Depth: 4/11   00:00:00
1.Qe3 Qb4 2.Rgf3 Rc2
  -+  (-2.65)   Depth: 4/11   00:00:00
1.Rd3 Rc2 2.Qe4 Nb4
  -+  (-2.73)   Depth: 4/11   00:00:00
1.Qe3 Qb4 2.Rgf3 Rc2
  -+  (-2.65)   Depth: 4/11   00:00:00
1.Qe3 Qb4 2.Rgf3 Rc2
  -+  (-2.65)   Depth: 5/12   00:00:00  2kN
1.Qe3 Qd5 2.Rgf3 Rc2
  -+  (-2.57)   Depth: 5/12   00:00:00  5kN
1.Qe3 Qb5 2.Rxg7 Bxg7 3.Bxg7+ Kxg7 4.Qg3+ Kh6 5.Rf6+ Kh5 6.Qf3+ Kg5
  -+  (-2.11)   Depth: 5/12   00:00:00  11kN
1.Qe3 Qb5 2.Rxg7 Bxg7 3.Bxg7+ Kxg7 4.Qg3+ Kh6 5.Rf6+ Kh5 6.Qf3+ Kg5
  -+  (-2.11)   Depth: 8/14   00:00:00  16kN
1.Qe3 Qxe3 2.Rxe3 Rd8 3.Bc3
  -+  (-1.99)   Depth: 9/14   00:00:00  34kN
1.Re1 Rc1 2.Bxg7+ Bxg7 3.Qe8+ Qf8 4.Qxf8+ Rxf8 5.Rxc1 Rxf7
  -+  (-1.81)   Depth: 10/16   00:00:00  57kN
1.Re1 Rc1 2.Bxg7+ Bxg7 3.Qe8+ Qf8 4.Qxf8+ Rxf8 5.Rxc1 Rxf7
  -+  (-1.81)   Depth: 11/17   00:00:00  80kN
1.Re1 Rc1 2.Bxg7+ Bxg7 3.Qe8+ Qf8 4.Qxf8+ Rxf8 5.Rxc1 Rxf7
  -+  (-1.81)   Depth: 11/18   00:00:01  146kN
1.Re1 Rc1 2.Bxg7+ Bxg7 3.Qe8+ Qf8 4.Qxf8+ Rxf8 5.Rxc1 Rxf7
  -+  (-1.81)   Depth: 12/19   00:00:02  240kN
1.b4 Rxb4 2.Rg5 h6 3.Bxg7+ Bxg7 4.Rxc5 Nxc5 5.Qe8+ Rxe8 6.fxe8Q+ Kh7
  ±  (1.09)   Depth: 13/22   00:00:03  491kN
1.b4 Rxb4 2.Rg5 h6 3.Bxg7+ Bxg7 4.Rxc5 Nxc5 5.Qe8+ Rxe8 6.fxe8Q+ Kh7
  ±  (1.09)   Depth: 14/22   00:00:04  561kN
1.b4 Rxb4 2.Rg5 h6 3.Bxg7+ Bxg7 4.Rxc5 Nxc5 5.Qe8+ Rxe8 6.fxe8Q+ Kh7 7.Rf5
  ±  (1.09)   Depth: 15/22   00:00:05  707kN
1.b4 Rxb4 2.Rg5 Rf4 3.Rxf4 Qc1+ 4.Qf1 Qxf1+ 5.Rxf1 h6 6.Rgf5 Rd8
  +-  (1.68)   Depth: 16/24   00:00:08  1262kN
1.b4 Rxb4 2.Rg5 h6 3.Qh5 Qd6 4.Bxd6 Bxd6 5.Qg6 Bf8 6.Re5 Nc7
  +-  (2.19)   Depth: 17/26   00:00:19  2707kN
1.b4 Rxb4 2.Rg5 h6 3.Qh5 Qd6 4.Bxd6 Bxd6 5.Re1 Nc7 6.Re8+ Bf8 7.Rc5 Rb1+ 8.Kh2
  +-  (2.28)   Depth: 18/27   00:00:24  3448kN
1.b4 Rxb4 2.Rg5 h6 3.Qh5 Qd6 4.Bxd6 Bxd6 5.Re1 Bf8 6.Re8 Nc7
  +-  (2.28)   Depth: 19/27   00:00:31  4446kN
1.b4 Rxb4 2.Rg5 h6 3.Qh5 Qd6 4.Bxd6 Bxd6 5.Re1 Bf8 6.Re8 Nc7
  +-  (2.28)   Depth: 20/27   00:00:42  6065kN

Three seconds.

--
GCP



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