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Subject: Re: Good Test Move

Author: Roy Eassa

Date: 12:12:02 02/19/02

Go up one level in this thread


On February 19, 2002 at 13:29:28, Bob Basham wrote:

>Here white wins by smashing through enemy lines by playing
>Bxg6..!!
>
>So far, none of my programs can find this one...
>
>[D]2r3k1/pr2ppb1/4bnp1/1pq1B1Q1/5P2/P1NB4/1PP3P1/1K1R3R w - -
>
>Maybe, just maybe a much faster machine can cough this one up in about 60
>seconds or so...:-)


Fritz 7b on Athlon 1.2 finds the move in 15 seconds:

1.Qh4 Qb6 2.Ne4 b4 3.Nxf6+ exf6 4.Qh7+ Kf8
  ±  (1.16)   Depth: 6/21   00:00:00  190kN
1.Qh4 Qb6 2.Be4 Rd7 3.Rxd7 Bxd7 4.Nd5 Qe6 5.Nxf6+ Bxf6
  ±  (1.22)   Depth: 7/24   00:00:00  340kN
1.Qh4 Rd7 2.Ne4 Qc6 3.Nxf6+ exf6 4.Qh7+ Kf8 5.Bc3 a5
  ±  (1.29)   Depth: 8/29   00:00:01  835kN
1.Qh4--
  ±  (1.00)   Depth: 9/29   00:00:03  1951kN
1.Qh4 b4 2.Ne4 Qc6 3.axb4 Rxb4 4.Rde1 Bd5 5.Nxf6+ exf6 6.Qh7+ Kf8
  ²  (0.69)   Depth: 9/31   00:00:04  2487kN
1.b4!
  ±  (0.72)   Depth: 9/31   00:00:13  6821kN
1.b4!
  ±  (0.88)   Depth: 9/31   00:00:14  7353kN
1.b4 Qc6 2.f5 gxf5 3.Bxf5 Bxf5 4.Qxf5 Qe6 5.Qxe6
  ±  (1.00)   Depth: 9/31   00:00:14  7734kN
1.Bxg6!
  ±  (1.04)   Depth: 9/31   00:00:15  8356kN
1.Bxg6!
  ±  (1.19)   Depth: 9/32   00:00:17  8989kN
1.Bxg6!
  +-  (1.50)   Depth: 9/32   00:00:18  9657kN
1.Bxg6 fxg6 2.Qxg6 Bf7 3.Rh8+ Kxh8 4.Qxf7 Rg8
  +-  (1.63)   Depth: 9/32   00:00:18  10026kN
1.Bxg6!
  +-  (1.91)   Depth: 10/33   00:00:22  12393kN
1.Bxg6!
  +-  (2.19)   Depth: 10/33   00:00:25  14219kN
1.Bxg6!
  +-  (2.75)   Depth: 10/33   00:00:30  16588kN
1.Bxg6 fxg6 2.Qxg6 Bf5 3.Qxf5 b4 4.Qe6+ Kf8 5.axb4 Rxb4 6.Bd4 Qc6 7.f5 Qxe6
  +-  (2.79)   Depth: 11/34   00:00:43  24188kN



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