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

Author: Gian-Carlo Pascutto

Date: 06:51:25 01/03/02

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On January 03, 2002 at 09:42:47, Thomas Mayer wrote:

>Quark v1.64alpha
>
>7   -166      72     503828  g3g5 c4c2 e2d3 c5c4 d3c4 c2c4
>7   -166     110     821125  g3g5 c4c2 e2d3 c5c4 d3c4 c2c4
>8   -136     126     939502  g3g5!
>8    -67     159    1239154  g3g5 c4c2 e2f3 c2b2 e5f6 c5c2 f6b2 c2b2
>8    -67     203    1578047  g3g5 c4c2 e2f3 c2b2 e5f6 c5c2 f6b2 c2b2
>9    -37     275    2216425  g3g5!
>9     61     379    3055912  g3g5 c4c2 e2f3 c2c1 e5g7 f8g7 g5c5 c1f1 f3f1 a6c5
>9     61     472    3873265  g3g5 c4c2 e2f3 c2c1 e5g7 f8g7 g5c5 c1f1 f3f1 a6c5
>10     90     873    7231037  g3g5 c4c1 e5g7 f8g7 g5c5 c1f1 e2f1 a6c5 f1e1 a8f8
>10     90    1219   10100444  g3g5 c4c1 e5g7 f8g7 g5c5 c1f1 e2f1 a6c5 f1e1 a8f8
>11     90    1500   12651603  g3g5 c4c1 e5g7 f8g7 g5c5 c1f1 e2f1 a6c5 f1e1 a8f8
>11     91    3647   30458110  b2b4!
>11    191    3971   32960777  b2b4!!
>11    244    4839   39439201  b2b4 c4b4 g3g5 b4f4 e5f4 c5a3 g5h5 h7h6 e2e5 h8h7
>11    244    4878   39746711  b2b4 c4b4 g3g5 b4f4 e5f4 c5a3 g5h5 h7h6 e2e5 h8h7
>12    274    6339   51623418  b2b4!
>12    346    8750   70126068  b2b4 c4b4 g3g5 h7h6 e2h5 c5e5 g5e5 a8d8 e5e8 b4d4
>
>well, it needs 36.47 seconds to discover it - many engines find the solution one
>or more ply's earlier... that is not a good sign... :)

a) what matters is the time to find it, not ply depth or node count

b) the variations that are displayed are smaller than the nominal ply depth, so
you are probably counting plies in a different way than others do.

--
GCP



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