Author: Richard Pijl
Date: 13:44:38 05/05/03
Go up one level in this thread
On May 05, 2003 at 14:55:43, Peter Berger wrote: >On May 05, 2003 at 09:09:12, Jorge Pichard wrote: > >>Some programs would select to move the king or 1....h5? which allow white to >>penetrate, but 1....h6! would be the correct move by just sitting tight, and >>there is no danger of Whites's king penetrating. >> >>8/1p2k2p/4p3/1PP2pp1/3P4/7P/5KP1/8 b - - 0 1 > >A fascinating postion although I disagree with your explanation. This position >is not so much about penetration itself but about getting a protected passer and >avoiding one for your opponent which will bind the opposing king to this side of >the board and free your own for said penetration. That's the reason why 1..h5 ?? >is so bad; it destroys the majority. Kd7 is just as good as h6 of course. > >It seems engines don't understand this motive at all. >Try this one with your favourite program and let it search for a while: > >[D]8/1p1k4/4p2p/1PP2pp1/2KP4/7P/6P1/8 w - - 0 1 > >This is a draw (I hope ;) ). >Peter The Baron doesn't seem to agree on that: ply time nodes score pv 5(14). 0 10726 116 d4d5 e6d5 c4d5 f5f4 c5c6 d7c7 c6b7 c7b7 d5c5 b7c7 6(17)& 0 26585 122 d4d5 e6d5 c4d5 d7e7 c5c6 b7b6 d5e5 f5f4 e5d5 6(17). 0 35165 122 d4d5 e6d5 c4d5 d7e7 c5c6 b7b6 d5e5 f5f4 e5d5 7(23)& 0 99883 123 d4d5 d7e7 c4d4 e6d5 d4d5 f5f4 c5c6 b7b6 d5e5 h6h5 7(23). 0 123967 123 d4d5 d7e7 c4d4 e6d5 d4d5 f5f4 c5c6 b7b6 d5e5 h6h5 8(23)& 0 328513 129 d4d5 d7e7 d5d6 e7d7 c4d4 g5g4 h3g4 f5g4 b5b6 h6h5 d4e5 8(23). 1 418033 129 d4d5 d7e7 d5d6 e7d7 c4d4 g5g4 h3g4 f5g4 b5b6 h6h5 d4e5 9(27)& 2 728701 121 d4d5 d7e7 d5d6 e7d7 c4d4 b7b6 d4c4 e6e5 c4b4 b6c5 b4c5 e5e4 9(27). 2 966618 121 d4d5 d7e7 d5d6 e7d7 c4d4 b7b6 d4c4 e6e5 c4b4 b6c5 b4c5 e5e4 10(30)& 6 2326696 138 d4d5 e6d5 c4d5 d7c7 d5e6 f5f4 e6f5 c7d7 f5g6 d7e6 c5c6 f4f3 c6b7 f3g2 b7b8q g2g1q 10(30). 7 2701008 138 d4d5 e6d5 c4d5 d7c7 d5e6 f5f4 e6f5 c7d7 f5g6 d7e6 c5c6 f4f3 c6b7 f3g2 b7b8q g2g1q 11(35)& 21 7016881 133 d4d5 d7e7 c4d4 e6d5 d4d5 e7d7 d5e5 f5f4 e5f6 d7c7 f6g6 h6h5 g6g5 c7c8 g5h5 c8d7 c5c6 11(35). 23 7938713 133 d4d5 d7e7 c4d4 e6d5 d4d5 e7d7 d5e5 f5f4 e5f6 d7c7 f6g6 h6h5 g6g5 c7c8 g5h5 c8d7 c5c6 12(37)+ 43 13418431 168 d4d5 d7e7 c4d4 e6d5 d4d5 e7d7 d5e5 f5f4 e5f6 d7c7 f6g6 h6h5 g6g5 b7b6 g5h5 c7b7 12(39)& 49 15264080 146 d4d5 d7e7 d5d6 e7d7 c4d4 b7b6 d4e5 b6c5 b5b6 d7c6 e5e6 c6b6 e6d5 b6b7 12(39). 53 17023568 146 d4d5 d7e7 d5d6 e7d7 c4d4 b7b6 d4e5 b6c5 b5b6 d7c6 e5e6 c6b6 e6d5 b6b7 13(40)+ 193 50653295 181 d4d5 d7e7 d5d6 e7d7 b5b6 g5g4 c4b5 g4h3 g2h3 f5f4 c5c6 b7c6 b5c5 f4f3 b6b7 f3f2 b7b8q f2f1q b8c7 d7e8 d6d7 e8f7 d7d8q f7g6 13(43). 342 93328535 271 d4d5 d7e7 d5d6 e7d7 b5b6 g5g4 c4b5 g4h3 g2h3 f5f4 c5c6 b7c6 b5c5 f4f3 b6b7 f3f2 b7b8q f2f1q b8c7 d7e8 d6d7 e8f7 d7d8q f7g6 14(45)+ 1607 426246221 306 d4d5 d7e7 d5d6 e7d7 b5b6 g5g4 c4b5 g4h3 g2h3 f5f4 c5c6 b7c6 b5c5 f4f3 b6b7 f3f2 b7b8q f2f1q b8c7 d7e8 d6d7 e8f7 d7d8q f7g6 14(45)& 1789 483405054 298 d4d5 e6d5 c4d5 d7c7 d5e6 f5f4 e6f5 c7d7 f5g6 h6h5 g6g5 d7e8 g5h5 e8f7 c5c6 f4f3 c6b7 14(45). 1856 509122289 298 d4d5 e6d5 c4d5 d7c7 d5e6 f5f4 e6f5 c7d7 f5g6 h6h5 g6g5 d7e8 g5h5 e8f7 c5c6 f4f3 c6b7
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