Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Position from Leiden, Round 10

Author: Vincent Diepeveen

Date: 14:44:53 10/30/02

Go up one level in this thread


On October 30, 2002 at 16:13:36, Gerd Isenberg wrote:

this is a 5 ply trick for engines doing checks in qsearch.
both single cpu and dual it is just 5 ply. The time is not
correct obviously. It is only the i/o delay causing it to be
3 seconds.

Engineflags=0 mask=1 denktime=10000000 maxtime=10000000
00:00     34   0k 0 0 40 (1) 1 (0,0) 2.018 Ng4xe3 f2xe3 Qb6xe3 Kg1-h1
00:00    172   0k 0 0 200 (1) 2 (0,1) 2.018 Ng4xe3 f2xe3 Qb6xe3 Kg1-h1
++ f8-f2
00:00   4608   5k 0 0 5715 (1) 2 (0,13) 3.000 Rf8xf2 Qg6xg4 Qb6xe3
00:00   8266   8k 0 0 10994 (1) 3 (0,52) 3.000 Rf8xf2 Qg6xg4 Qb6xe3
00:01  28510  29k 0 0 61013 (1) 4 (0,102) 1.496 Rf8xf2 Nh7-f6 Be7xf6 Qg6-h7 Kg8-
f8 Be3xb6 Rf2xg2 Kg1-f1 Ng4xh2 Kf1-e1 Bf6-h4 Bb6-f2 Rg2xf2
++ g4-e3
00:01  32062  32k 0 0 75668 (1) 4 (0,104) 1.759 Ng4xe3 a4-a5 Qb6-c5 f2xe3 Qc5xe3
 Kg1-h1
00:01  36321  36k 0 0 95889 (1) 5 (0,153) 2.239 Ng4xe3 a4-a5 Qb6-c5 f2xe3 Qc5xe3
 Kg1-h1 Rf8-f2
++ f8-f2
00:03  50224  50k 0 0 234550 (1) 5 (0,155) 3.634 Rf8xf2 Nh7-f6 Be7xf6 Qg6-h7 Kg8
-f8 Be3xb6 Rf2xg2 Kg1-f1 Ng4xh2 Kf1-e1 Bf6-h4 Bb6-f2 Nh2-f3 Ke1-e2 Rg2xf2 Ke2-e3
 Nc7-d5 Rd1xd5 Bc6xd5 a4xb5 a6xb5
00:06  55070  55k 0 0 395959 (1) 6 (0,204) 3.634 Rf8xf2 Nh7-f6 Be7xf6 Qg6-h7 Kg8
-f8 Be3xb6 Rf2xg2 Kg1-f1 Ng4xh2 Kf1-e1 Bf6-h4 Bb6-f2 Nh2-f3 Ke1-e2 Rg2xf2 Ke2-e3
 Nc7-d5 Rd1xd5 Bc6xd5 a4xb5 a6xb5

>Position from Shark - IsiChessMMX, Leiden Round 10
>
>[D] r4rk1/2n1b1pN/pqb1p1Qp/1p6/P1p3n1/N1P1B3/1PB2PPP/R2R2K1 b - - ; bm Rxf2
>
>Even if the position is already won by black, finding the spectacular 24...Rxf2
>seems quite difficult for some engines. Ruffian is clearly the fastest i tried
>so far on my 2.1XP+ :
>
>Ruffian 1.0.0    2 seconds
>Shredder5       14 seconds
>IsiChessMMX     47 seconds
>
>May be a bad testposition due to Nxe3 wins too.
>
>Cheers,
>Gerd



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.