Author: Uri Blass
Date: 12:25:16 01/10/05
Go up one level in this thread
On January 10, 2005 at 15:18:09, Andrew Williams wrote: >Hi, > >Last Friday (7th January 2005) I started PM on a material-only search from the >starting position. This was in response to a request from Duncan Roberts: > >http://www.talkchess.com/forums/2/message.html?151665 > >On Saturday 8th, I posted a progress report: > >http://www.talkchess.com/forums/2/message.html?151865 > >I was hopeful that PM would finish 35 plies over the weekend, but it didn't >happen. When I got up this morning, there had been no progress since Saturday >afternoon and I didn't want to leave my PC on all day. PM had had 43 hours since >it finished ply 34, but although it was still burning CPU time, there was no >more output. The last I heard from PM was: > >30= +0.00 00:28:36.541087088735 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 > 5.b4 axb4 6.cxb4 e6 7.Bb2 Nf6 > 8.b5 cxb5 9.axb5 Rxa1 10.Bxa1 g6 > 11.Nc3 d6 12.Nf3 >31> +0.00 01:00:13.772083574223 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 Qe7 13.d4 >31< +0.01 01:09:45.04-1811636011 1.a3 >31= +0.00 01:09:45.04-1811636011 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 Qe7 13.d4 >32> +0.00 02:09:55.47 303672321 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 Qe7 13.d4 Kd8 >32< +0.01 02:27:21.531056234340 1.a3 >32= +0.00 02:27:21.531056234340 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 Qe7 13.d4 Kd8 >33> +0.00 05:02:57.082077668534 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 e5 13.e3 >33< +0.01 05:41:54.93-634541739 1.a3 >33= +0.00 05:41:55.06-634541739 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 e5 13.e3 >34> +0.00 11:36:50.42-1671302356 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 e5 13.e3 Ke7 > 14.Qe2 >34< +0.01 13:09:24.491898767447 1.a3 >34= +0.00 13:09:24.491898767447 1.a3 a6 2.a4 a5 3.b3 b6 4.c3 c6 5.b4 axb4 > 6.cxb4 e6 7.Bb2 Nf6 8.b5 cxb5 9.axb5 Rxa1 > 10.Bxa1 g6 11.Nc3 d6 12.Nf3 e5 13.e3 Ke7 > 14.Qe2 > >I'm posting this output purely for completeness. The node counts overflowed on >ply 31 and the PVs are probably pretty nonsensical. > >Andrew It may be interesting to know how many plies does only material search need to find the following mates mate in 6 [D]4k3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1 mate in 7 [D]4k3/p7/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1 Uri
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