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Subject: Re: Test position

Author: Dieter Buerssner

Date: 10:10:08 01/16/05

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On January 16, 2005 at 07:55:49, Yar wrote:

>How long does it take for your engine to find kf3 ?
>8/7R/1N2k1p1/P1p1b3/P3r3/7P/4K3/8 w - - 0 47

Yace almost immediately, loses it after some seconds. Finds it again after 3
hours (when I lost patience). Is Kf3 the only winning move?

Regards,
Dieter

 107976929  2:02.5   1.12 14.  47.Kd1 Rb4 48.Rb7 Rd4+ 49.Ke2 Re4+ 50.Kf3 Rf4+
                               51.Kg2 c4 52.a6 c3 53.a7 c2 54.a8=Q c1=Q
                               55.Qe8+ Kf5 56.Rf7+ Bf6 57.Rxf6+ Kxf6 58.Nd5+
                               Kf5 {-80}
 196012611  3:43.2   1.15 15t  47.Kd1 Rb4 48.Rb7 Kd6 49.Nc8+ Kc6 50.Rxb4 cxb4
                               51.Ne7+ Kb7H 52.Nxg6H Bc3H 53.Kc2H Ka6H 54.h4H
                               Bd2H {HT} {150}
 250601620  4:50.1   1.15 15.  47.Kd1 Rb4 48.Rb7 Kd6 49.Nc8+ Kc6 50.Rxb4 cxb4
                               51.Ne7+ Kb7 52.Nxg6 Bc3 53.Kc2 Ka6 54.h4 Bd2
                               {HT} {150}
 466173985  9:02.1   1.20 16t  47.Kd1 Rb4 48.Rb7 Rd4+ 49.Kc1 Kd6 50.Rb8 Kc6
                               51.Rc8+ Bc7 52.Na8 Rc4+ 53.Kd2 Kb7 54.Rxc7+
                               Kxa8 55.Rc6 Rd4+ 56.Kc3 Rh4 {HT} {80}
 653549812 12:56.4   1.20 16.  47.Kd1 Rb4 48.Rb7 Rd4+ 49.Kc1 Kd6 50.Rb8 Kc6
                               51.Rc8+ Bc7 52.Na8 Rc4+ 53.Kd2 Kb7 54.Rxc7+
                               Kxa8 55.Rc6 Rd4+ 56.Kc3 Rh4 {HT} {80}
1088869997 20:39.7   1.60 17++ 47.Kd1 Rb4 48.Rb7 Rd4+ 49.Kc2 c4 50.a6 c3
                               51.Rd7 Rxd7 52.Nxd7 Bd4 53.Nf8+ Kf7 54.Nh7 Bb6
                               55.Kxc3 Kg8 56.a7 Bxa7 57.Ng5 {HT} {70}
1623915033 30:01.4   1.62 17t  47.Kd1 Rd4+ 48.Kc1 Rb4 49.Rb7 Kd6 50.Rb8 Ke6
                               51.Re8+ Kf5 52.a6 Rxb6 53.a7 Ra6 54.a8=Q Rxa8
                               55.Rxa8 c4 56.Rc8 Bf4+ 57.Kc2 {HT} {150}
1953247137 36:32.4   1.62 17.  47.Kd1 Rd4+ 48.Kc1 Rb4 49.Rb7 Kd6 50.Rb8 Ke6
                               51.Re8+ Kf5 52.a6 Rxb6 53.a7 Ra6 54.a8=Q Rxa8
                               55.Rxa8 c4 56.Rc8 Bf4+ 57.Kc2 {HT} {150}
2878266080 53:20.6   1.65 18t  47.Kd1 Rd4+ 48.Kc1 Rb4 49.Rb7 Kd6 50.Rb8 Ke6
                               51.Re8+ Kf5 52.a6 Rxb6 53.a7 Ra6 54.a8=Q Rxa8
                               55.Rxa8 c4 56.Re8 Ke4 57.Kd2 c3+ {HT} {150}
3788563414 1:12:24   1.65 18.  47.Kd1 Rd4+ 48.Kc1 Rb4 49.Rb7 Kd6 50.Rb8 Ke6
                               51.Re8+ Kf5 52.a6 Rxb6 53.a7 Ra6 54.a8=Q Rxa8
                               55.Rxa8 c4 56.Re8 Ke4 57.Kd2 c3+ {HT} {150}
2054909735 2:05:09   1.59 19t  47.Kd1 Rd4+ 48.Kc1 Rb4 49.Rb7 Kd6 50.Rb8 Kc6
                               51.Rc8+ Kb7 52.Rxc5 Bh2 53.Rc4 Rb3 54.Rh4 Ka6
                               55.Kc2 Rf3 56.Nc4 Rf2+ 57.Kd3 Bf4 {HT} {150}
 568389920 3:04:14   1.60 19t+ 47.Kf3 Rf4+ 48.Kg2 Rb4 49.Rb7 Rb2+ 50.Kf3 Rb3+
                               51.Ke2 Bf6 52.a6 Rg3



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