Author: José Carlos
Date: 14:22:15 03/20/02
Go up one level in this thread
On March 20, 2002 at 16:21:28, ALI MIRAFZALI wrote: >On March 20, 2002 at 15:13:58, Gian-Carlo Pascutto wrote: > >>In the Dutch championship 2001, my program reached the following >>position with black against Rebel Century >> >>[D]r2q1rk1/pbp1bppp/1p2pn2/8/3P1B2/2PB1N2/PP2QPPP/R4RK1 b - - 0 1 >> >>It played the losing move a5?, and proceeded with the 'plan' of >>pushing it further along the a-file. >> >>Nowadays, it would find the correct c5 after about a minute >>of search, but it is clear by looking at the variations that >>it is more due to luck and that it is still not really understanding >>what is going on. >> >>I am wondering if one of the strong players is able to explain >>why c5 is good and a5 is not. I would play c5 myself, but I >>have to admit I would not be able to explain why it is better >>either. I just know it is good to hit at the d4 pawn with the >>c pawn if possible, but I suspect there is more to it? >> >>Analysis by Sjeng 12.10: >> >>11...Qd7 12.Rfe1 >> ² (0.33) Depth: 2 00:00:00 >>11...c5 12.dxc5 Bxc5 >> = (0.23) Depth: 2 00:00:00 >>11...c5 12.dxc5 Bxc5 >> = (0.23) Depth: 2 00:00:00 >>11...c5 12.dxc5 Bxc5 13.Rad1 >> ² (0.39) Depth: 3 00:00:00 >>11...Qd7 12.Ne5 Qa4 >> ² (0.34) Depth: 3 00:00:00 >>11...Nd5 12.Bd2 Qd7 >> = (0.23) Depth: 3 00:00:00 >>11...Nd5 12.Bd2 Qd7 >> = (0.23) Depth: 3 00:00:00 >>11...Nd5 >> ± (0.73) Depth: 4/16 00:00:00 >>11...Qd7 12.Ne5 Qd5 13.f3 >> ² (0.42) Depth: 4/16 00:00:00 >>11...c5 12.dxc5 Bxc5 13.Rad1 Qd7 >> = (0.19) Depth: 4/16 00:00:00 >>11...c5 12.dxc5 Bxc5 13.Rad1 Qd7 >> = (0.19) Depth: 4/16 00:00:00 >>11...c5 12.dxc5 Nd5 13.Be5 Bxc5 >> = (0.25) Depth: 5/16 00:00:00 >>11...a6 12.Rad1 Nd5 13.Qe4 Nxf4 14.Qxb7 >> = (0.22) Depth: 5/16 00:00:01 >>11...a6 12.Rad1 Nd5 13.Qe4 Nxf4 14.Qxb7 >> = (0.22) Depth: 5/21 00:00:01 >>11...a6 12.Rfd1 Bd6 13.Ne5 c5 14.Bc2 >> ² (0.26) Depth: 6/21 00:00:01 391kN >>11...a6 12.Rfd1 Bd6 13.Ne5 c5 14.Bc2 >> ² (0.26) Depth: 6/21 00:00:02 616kN >>11...a6 12.Rad1 Qd7 13.Rfe1 Nh5 14.Bd2 Nf6 >> = (0.20) Depth: 7/21 00:00:03 1295kN >>11...a5 12.Rfe1 Bd6 13.Ne5 c5 14.Qe3 Qe7 >> = (0.19) Depth: 7/23 00:00:04 1995kN >>11...a5 12.Rfe1 Bd6 13.Ne5 c5 14.Qe3 Qe7 >> = (0.19) Depth: 7/24 00:00:05 2455kN >>11...a5 12.Rfd1 a4 13.Ne5 a3 14.b3 Qd5 15.f3 >> = (0.20) Depth: 8/24 00:00:08 4809kN >>11...a5 12.Rfd1 a4 13.Ne5 a3 14.b3 Qd5 15.f3 >> = (0.20) Depth: 8/27 00:00:09 5339kN >>11...a5 12.Rfe1 a4 13.Bc2 a3 14.b3 Nd5 15.Qe4 Nxf4 16.Qxb7 >> = (0.18) Depth: 9/27 00:00:26 16234kN >>11...a5 12.Rfe1 a4 13.Bc2 a3 14.b3 Nd5 15.Qe4 Nxf4 16.Qxb7 >> = (0.18) Depth: 9/31 00:00:34 20026kN >>11...a5 12.Rfe1 a4 13.b4 a3 14.Ne5 Qd5 15.f3 Nd7 16.Qf2 Nxe5 17.Rxe5 >> = (0.21) Depth: 10/31 00:00:52 33182kN >>11...c5 12.dxc5 Bxc5 13.Rad1 Qe7 14.Rd2 Rfd8 15.Rfd1 Rac8 16.Bc4 Rxd2 17.Rxd2 >> = (0.13) Depth: 10/31 00:01:35 63374kN >>11...c5 12.dxc5 Bxc5 13.Rad1 Qe7 14.Rd2 Rfd8 15.Rfd1 Rac8 16.Bc4 Rxd2 17.Rxd2 >> = (0.13) Depth: 10/31 00:01:40 64914kN >> >>-- >>GCP >Sjeng is simply a bad program 1. If Sjeng was perfect, he woudn't need to ask questions like the one he did. 2. Trying to improve is a sign of intelligence; analisys like "XXX is a bad program" shows lack of it. 3. It is much more easy to improve Sjeng than to improve a person's intelligence. 4. Sjeng is an amateur program. GCP uses his spare time to work on it. He gives his program for free so that everyone can enjoy it. He even gives source code for others can learn. Think about all of that... José C.
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