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Subject: Re: Promotion to Knight Wins

Author: Richard Pijl

Date: 03:51:20 05/23/04

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On May 22, 2004 at 20:12:00, Rob Basham wrote:

>[D]8/p1P5/P7/3p4/5p1p/3p1P1P/K2p2pp/3R2nk w - -
>
>White mates by 1. c8N....etc
>
>This should make a good test move..
>
>White promotes to a knight twice and mates in about 10 or 12 moves...

Barely 40 seconds for the Baron on a P4-2.4:

 14(26)&   0:38.83  13548493   +5.08  Rd1-b1 d5-d4 c7-c8Q d2-d1Q Rb1xd1
                                      Rd1-b1 d4-d3 Qc8-g4 d2-d1Q Rb1xd1
                                      Rd1xd2 Ng1-e2 Rd2xe2 g2-g1Q
 14(26)>   0:39.66  13856237   +5.16  c7-c8N
 14(26)&   0:39.66  13856421   +5.16  c7-c8N d5-d4 Nc8-b6 a7xb6 a6-a7 b6
                                      a7-a8Q b5-b4 Qa8-b8 b4-b3 Ka2-a3 b
                                      Qb8xf4 b2-b1Q Rd1xb1 d2-d1Q Rb1xd1
 14(26).   0:39.66  13856426   +5.16  c7-c8N d5-d4 Nc8-b6 a7xb6 a6-a7 b6
                                      a7-a8Q b5-b4 Qa8-b8 b4-b3 Ka2-a3 b
                                      Qb8xf4 b2-b1Q Rd1xb1 d2-d1Q Rb1xd1
 15(19)+   0:39.66  13856472   +5.85  c7-c8N (d5-d4) (Nc8-b6) (a7xb6) (a6-b5)
                                      (a7-a8Q) (b5-b4) (Qa8-b8) (b4-b3) (b3-b2)
                                      (Qb8xf4) (b2-b1Q) (Rd1xb1) (d2-d1Q1)
(d3-d2)
                                      (Qf4xh4)
 15(25)&   0:41.36  14505451   +6.14  c7-c8N d5-d4 Nc8-b6 a7xb6 a6-a7 b6
                                      a7-a8Q b5-b4 Qa8-e4 b4-b3 Ka2-a3 b
                                      Qe4xd3 b2-b1Q Rd1xb1 d2-d1Q Qd3xd1

Richard.



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