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Subject: Re: Test position

Author: Richard Pijl

Date: 13:25:57 08/14/04

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On August 14, 2004 at 15:45:50, Scott Gasch wrote:

>How long and what depth to see b3! in this position:
>
>[D]2r2rk1/pp3pB1/3p4/q2P3B/b6b/3Q4/PPP3P1/1K1R1R2 w - - 1 22
>
>monsoon missed this move in a 5 2 blitz game.  It needs depth=9 and ~30 sec to
>see it on my dual proc.
>
>Scott

The Baron 1.4.0 on a P4-2.4:

 ply       time        nodes   score  pv
  3(10).   0:00.05     11610   +3.38  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3
  4(10)&   0:00.11     15193   +3.38  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3
  4(12).   0:00.27     36537   +3.38  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3
  5(12)&   0:00.38     49177   +3.13  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Bh4-g5
  5(14).   0:00.93    111036   +3.13  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Bh4-g5
  6(13)&   0:01.26    157759   +3.38  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Ba4-b5
                                      Rf1-f4
  6(15).   0:02.80    484548   +3.38  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Ba4-b5
                                      Rf1-f4
  7(15)&   0:03.13    561500   +3.21  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Ba4-b5
                                      Rf1-f4 Bh4-g5
  7(17).   0:08.02   1680385   +3.21  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Ba4-b5
                                      Rf1-f4 Bh4-g5
  8(16)&   0:09.06   1918271   +3.26  Bg7-c3 Rc8xc3 Qd3xc3 Qa5xc3 b2xc3 Ba4-b5
                                      Rf1-h1 Bh4-f6 Kb1-b2
  8(19)&   0:19.66   4386355   +3.31  b2-b3 Ba4-b5 c2-c4 Bb5xc4 b3xc4 Kg8xg7
                                      Qd3-d4 Kg7-h7 Qd4xh4 (Qa5-b4) (Kb1-a1)
  8(19).   0:22.90   5158048   +3.31  b2-b3 Ba4-b5 c2-c4 Bb5xc4 b3xc4 Kg8xg7
                                      Qd3-d4 Kg7-h7 Qd4xh4 (Qa5-b4)
  9(17)&   0:28.34   6458941   +3.32  b2-b3 Ba4-b5 Qd3-f5 Bb5xf1 Bg7xf8 Rc8xf8
                                      Rd1xf1 f7-f6 Qf5-e6 Kg8-h8
  9(18)&   0:32.40   7457643   +3.36  Bg7-c3 Rc8xc3 b2xc3 Qa5-b5 Qd3xb5 Ba4xb5
                                      Rf1-f4 Bh4-g5 Rf4-g4 f7-f6 Kb1-b2
  9(21).   1:12.77  16864734   +3.36  Bg7-c3 Rc8xc3 b2xc3 Qa5-b5 Qd3xb5 Ba4xb5
                                      Rf1-f4 Bh4-g5 Rf4-g4 f7-f6 Kb1-b2
 10(22)&   1:17.50  18082408   +3.21  Bg7-c3 Rc8xc3 b2xc3 Qa5-b5 Qd3xb5 Ba4xb5
                                      c3-c4 Bb5-d7 Kb1-b2 b7-b6 Rf1-f4 Bh4-g5
 10(22)+   1:33.70  22110904   +3.71  b2-b3 (Ba4-b5) (Qd3-f5) (Kg8xg7) (Bh5xf7)
(Bb5-d3)
                                      (Rd1xd3) (Kg7-h8)



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