Author: Richard Pijl
Date: 15:46:40 12/18/02
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On December 18, 2002 at 14:10:04, Art Basham wrote: >In 1964 Tal played...Qd6...! > >I am wondering if any chess programs find it too... > >[D]rnb1k1nr/1p3pbp/p1p3p1/q3p3/2B1PB2/2N2N2/P1PQ1PPP/1R2R1K1 w - - 0 13 > >This is the actual position at move 13... >Taken from the book, "Power Mates"... Baron finds it in 6 seconds on an AMD Athlon MP 2000+. Uri reported that Movei had problems maintaining the line, so I let it run a little longer. Baron held on to Qd6: ply time nodes score pv 4(11)- 0 25612 105 f4g5 b7b5 4(11)& 0 26569 93 f4g5 b7b5 c4b3 c8g4 4(11). 0 39398 93 f4g5 b7b5 c4b3 c8g4 5(11)& 0 52195 122 f4g5 f7f6 g5e3 b7b5 c4b3 5(13). 0 124463 122 f4g5 f7f6 g5e3 b7b5 c4b3 6(15)- 1 577145 92 f4g5 h7h6 6(15)& 1 602433 87 f4g5 h7h6 d2d6 b8d7 g5d2 a5d8 6(15)& 2 840352 106 f4g3 f7f6 e1d1 b7b5 c4b3 c8g4 6(15). 2 840394 106 f4g3 f7f6 e1d1 b7b5 c4b3 c8g4 7(17)& 2 1089044 99 f4g3 b7b5 c4b3 b5b4 c3a4 c8g4 e1d1 7(18)& 4 1685525 103 f4g5 b7b5 c4b3 c8g4 e1d1 b8d7 b1b2 7(18)+ 6 2348461 136 d2d6 7(18)& 7 2648455 152 d2d6 f7f6 f4d2 g7f8 d6d3 7(18). 8 2835856 152 d2d6 f7f6 f4d2 g7f8 d6d3 8(20)& 11 4178175 134 d2d6 f7f6 f4d2 g7f8 d6d3 a5c7 e1d1 c8g4 8(20). 18 6470484 134 d2d6 f7f6 f4d2 g7f8 d6d3 a5c7 e1d1 c8g4 9(21)+ 26 9259209 164 d2d6 9(21)& 28 9909855 164 d2d6 f7f6 b1b7 c8b7 d6e6 g8e7 e6f7 e8d8 e1d1 b8d7 c4e6 b7c8 9(23). 43 15713695 164 d2d6 f7f6 b1b7 c8b7 d6e6 g8e7 e6f7 e8d8 e1d1 b8d7 c4e6 b7c8 10(26)& 69 25566345 164 d2d6 f7f6 b1b7 c8b7 d6e6 g8e7 e6f7 e8d8 e1d1 b8d7 c4e6 b7c8 10(26). 132 49543746 164 d2d6 f7f6 b1b7 c8b7 d6e6 g8e7 e6f7 e8d8 e1d1 b8d7 c4e6 b7c8 11(28)& 217 81738997 192 d2d6 f7f6 f3e5 f6e5 e1d1 g7f6 b1b7 f6e7 b7e7 g8e7 f4e5 h8f8 11(29). 426 161931605 192 d2d6 f7f6 f3e5 f6e5 e1d1 g7f6 b1b7 f6e7 b7e7 g8e7 f4e5 12(30)+ 674 247334050 222 d2d6 12(31)& 845 306876809 225 d2d6 f7f6 f3e5 f6e5 e1d1 g7f6 b1b7 f6e7 b7e7 g8e7 f4e5 h8f8 e5f6
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