Author: Richard Pijl
Date: 08:34:27 09/02/03
Go up one level in this thread
On September 02, 2003 at 08:53:59, Alastair Scott wrote: >[D]r1b1k2r/1p1p1ppp/4pq2/8/pQP1n3/P1n2NP1/1B2PP1P/R3KB1R w KQkq - 2 15 > >When reviewing my (human-human) games with Yace Paderborn it came across a >stunner here: 15.g4!? > >I would not have thought of it for a second, yet it appears to win a piece at >the cost of one or two pawns and a very messy position, hence the "!?". What >does your program think? > >Interestingly, the "stronger" programs tend to go for g4, whereas the "weaker >ones" (plus myself :) go for Rc1. > In that case the Baron must be strong ;-). The current development version selects g4 in just over a second on a lowly P3-500: ply time nodes score pv 5(10)& 0:00.24 14434 79 a1c1 c3a2 b2f6 a2b4 f6g7 5(10). 0:00.31 18298 79 a1c1 c3a2 b2f6 a2b4 f6g7 6(13)& 0:00.52 32571 62 a1c1 c3a2 b2f6 a2b4 f6d4 b4a2 6(13)& 0:01.35 86339 90 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 6(13). 0:01.43 90396 90 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 7(15)& 0:02.73 179325 90 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 f6g7 7(15). 0:03.35 220206 90 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 f6g7 8(18)+ 0:08.94 593829 125 g3g4 h7h6 h2h4 d7d6 g4g5 h6g5 h4g5 c3e2 g5f6 8(18)& 0:10.57 707578 141 g3g4 g7g5 a1c1 f6f4 c1c3 e4c3 b4c3 h8g8 c3d3 8(18). 0:12.25 818322 141 g3g4 g7g5 a1c1 f6f4 c1c3 e4c3 b4c3 h8g8 c3d3 9(22)& 0:26.85 1822839 112 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 f6g7 h8h7 g7e5 9(22). 0:30.36 2064890 112 g3g4 h7h6 a1c1 c3a2 b2f6 a2b4 f6g7 h8h7 g7e5 10(26)+ 1:05.46 4493625 147 g3g4 h7h6 h2h4 a8a7 g4g5 h6g5 h4g5 h8h1 g5f6 10(26)& 1:26.02 5928612 166 g3g4 h7h6 h2h4 b7b6 g4g5 f6e7 b2c3 e7b4 c3b4 h6g5 10(26). 2:26.90 9839039 166 g3g4 h7h6 h2h4 b7b6 g4g5 f6e7 b2c3 e7b4 c3b4
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