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Subject: Re: Perpetual Check

Author: David Dahlem

Date: 10:42:05 09/04/04

Go up one level in this thread


On September 04, 2004 at 11:46:48, Ed Schröder wrote:

>Does someone possess a good test set for testing Perpetual Checks ?
>
>Thanks.
>
>Ed

[D]q5k1/4Q3/5r2/5P1B/6PK/8/8/8 w - - 0 1

Qxf6 Qh1+ leads to perpetual check. ProDeo sees a 0.00 score, then changes it's
mind. :-)

ProDeo UCI  UCI1:
 1   00:00  7.84   1.Qxf6
 2   00:00  7.30   1.Qxf6 Qf8
 3   00:00  7.24   1.Qxf6 Qf8 2.Qd4
 4   00:00  6.91   1.Qxf6 Qf8 2.Qg6+ Kh8
 5   00:00  7.06   1.Qxf6 Qf8 2.Qg6+ Qg7 3.Qe8+ Kh7
 6   00:00  7.60   1.Qxf6 Qf8 2.Qe5 Qg7 3.f6 Qh6 4.Qe8+
 7   00:00  7.53   1.Qxf6 Qh1+ 2.Kg3 Qe1+ 3.Kf4 Qc1+ 4.Ke4 Qc4+ 5.Ke3 Qc5+ 6.Ke4
Qb4+ 7.Kf3 Qf8 8.Qd4
 8   00:00  7.21   1.Qxf6 Qh1+ 2.Kg3 Qg1+ 3.Kf3 Qf1+ 4.Ke3 Qe1+ 5.Kd3 Qd1+ 6.Kc4
Qa4+ 7.Kc5 Qa3+ 8.Kb5 Qf8 9.Qd4
 9   00:01  7.42   1.Qxf6 Qh1+ 2.Kg3 Qg1+ 3.Kf3 Qf1+ 4.Ke4 Qb1+ 5.Ke3 Qe1+ 6.Kd3
Qd1+ 7.Kc4 Qa4+ 8.Kc5 Qa3+ 9.Kb5 Qf8 10.Qd4 Qe7 11.Bg6
10   00:03  0.00   1.Qxf6 Qh1+ 2.Kg5 Qc1+ 3.Kg6 Qh6+ 4.Kxh6
10   00:11  1.50   1.Qc7 Qf8 2.Qe5 Kh7 3.Bg6+
10   00:34  2.14   1.Kg5 Qf8 2.Qxf8+ Rxf8 3.Kg6
11   00:43  2.14   1.Kg5 Qf8 2.Qxf8+ Rxf8 3.Kg6
11   00:51  2.14   1.Qxf6
11   00:52  2.14   1.Kg5 Qf8 2.Qxf8+ Rxf8 3.Kg6
12   01:03  2.14   1.Kg5 Qf8 2.Qxf8+ Rxf8 3.Kg6

Regards
Dave



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