Author: Steven J. Brann
Date: 18:57:36 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. > >Alastair CM9000 on a P4 3.0G HT machine with custom personality finds g4 in less than a second. Time Depth Score Positions Moves 0:00 1/3 1.17 1382 15.Rc1 Na2 16.Bxf6 Nxb4 17.Bxg7 0:00 1/4 1.17 4678 15.Rc1 Na2 16.Bxf6 Nxb4 17.Bxg7 0:00 1/5 1.11 15852 15.Rc1 Na2 16.Bxf6 Nxb4 17.Bxg7 Rg8 18.Bd4 0:00 1/6 1.03 33398 15.Rc1 Na2 16.Bxf6 Nxb4 17.Bxg7 Rg8 18.Bb2 0:00 1/6 1.19 57927 15.Bg2 Rg8 16.Rd1 Na2 17.Qb6 Nac3 18.Rc1 0:00 1/6 1.29 82274 15.g4 h6 16.Rc1 Na2 17.Bxf6 Nxb4 18.Bxg7 0:00 1/7 1.46 125981 15.g4 h6 16.Rc1 Na2 17.Bxf6 Nxb4 18.Bxg7 Rh7 19.Bxh6 Rxh6 20.axb4 0:01 1/8 2.05 279897 15.g4 h6 16.h4 g6 17.Rc1 Qf4 18.Rxc3 Nxc3 19.Qxc3 Rf8 0:02 1/9 2.07 593492 15.g4 h6 16.h4 g6 17.Rc1 Qf4 18.Rxc3 Nxc3 19.Qxc3 Rf8 20.Bh3 0:04 1/10 2.01 1120090 15.g4 h6 16.h4 g6 17.Rc1 Qf4 18.Rxc3 Nxc3 19.Qxc3 Rf8 20.Qd4 0:12 1/11 2.21 3308847 15.g4 h6 16.h4 Rh7 17.g5 Qf5 18.Bxc3 hxg5 19.Bd4 g4 20.Nd2 d6 21.Nxe4 Qxe4 0:32 1/12 2.41 8885572 15.g4 d6 16.g5 Qe7 17.Bxc3 Nxc3 18.Qxc3 O-O 19.Rd1 e5 20.Bg2 Bf5 21.c5 dxc5 22.Qxe5 1:22 1/13 2.35 22942538 15.g4 d6 16.g5 Qe7 17.Bxc3 Nxc3 18.Qxc3 O-O 19.Rd1 e5 20.c5 dxc5 21.Qxe5 Be6 22.Bh3 3:11 1/14 2.40 53748914 15.g4 d6 16.g5 Qe7 17.Bxc3 O-O 18.Bd4 e5 19.Nxe5 Nc5 20.g6 Na6 21.gxh7+ Kh8 22.Nxf7+ Rxf7 23.Qxa4 Kxh7 Steve
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