Author: Uri Blass
Date: 04:58:29 03/01/03
Go up one level in this thread
On March 01, 2003 at 07:17:02, Uri Blass wrote: >On March 01, 2003 at 06:51:43, Benny Antonsson wrote: > >>Hi! >> >>While I was watching Terra play Averno, the following interresting position >>occured: >> >>[D]7r/1PP5/8/8/3k4/3pp3/6P1/3B2K1 b - - 0 73 >> >>Averno played e2?? while Terra predicted Rh1+! Which seems to be a draw ? >> >>I have tested a few WB-engines in this position and only Little Goliath thinks >>it's a draw... Crafty, Ruffian, Yace and Fritz does not. > >Little goliath is known to detect draw when there are no draws. > >Do not believe it. > >I do not say that it is not a draw but only that you cannot trust little >goliath. > >Uri I can also add that movei has problems here because it considers illogical moves(see the following pvs) It probably can play better without considering underpromotions in the search or at least without considering promotions to rook. The problem is that e1Q+ Kxe1 is extended and e1R Kxe1 is not extended I used a version that is better than the public version on p850(00_799 only does the same things slower) depth=9 -2.30 e3e2 d1e2 d3e2 g1f2 e2e1r b7b8q e1e8 b8b6 d4d5 b6b3 d5d4 b3f3 Nodes: 2840262 NPS: 183361 Time: 00:00:15.49 depth=9 -2.29 h8h1 Nodes: 5640993 NPS: 169195 Time: 00:00:33.34 depth=9 -2.18 h8h1 g1h1 e3e2 d1e2 d3e2 c7c8q e2e1q h1h2 e1e5 h2h3 e5h5 h3g3 h5e5 g3g4 e5g7 g4f3 g7f6 f3e2 f6a6 e2e1 a6a5 e1f2 a5d2 f2g3 d2e3 g3g4 Nodes: 6704570 NPS: 174371 Time: 00:00:38.45 depth=10 -1.88 e3e2 depth=10 -2.12 e3e2 d1e2 d3e2 g1f2 e2e1r c7c8q e1e8 c8d7 d4c5 d7c7 c5d5 c7f7 d5c5 f7f5 c5c6 f5f3 c6d6 f3a3 d6c6 depth=11 -2.18 e3e2 d1e2 d3e2 g1f2 e2e1r c7c8q e1e8 c8g4 d4c5 g4f5 c5c6 f5f3 c6c5 f3c3 c5d5 c3d3 d5e5 Nodes: 20066248 NPS: 172821 Time: 00:01:56.11 depth=12 -2.13 e3e2 d1e2 d3e2 g1f2 e2e1r c7c8q e1e8 c8g4 d4c5 g4f5 c5b6 f5d5 h8f8 f2g3 e8e3 g3g4 e3e8 Nodes: 94400713 NPS: 172784 Time: 00:09:06.35 depth=13 -6.04 e3e2 d1e2 d3e2 g1f2 e2e1r f2e1 d4e3 e1d1 e3d3 d1c1 h8h1 c1b2 h1g1 c7c8q g1g2 b2b3 Nodes: 137199405 NPS: 174168 Time: 00:13:07.74 depth=13 -6.03 h8h1 Nodes: 152610767 NPS: 174276 Time: 00:14:35.68 depth=13 -5.74 h8h1 Nodes: 165329230 NPS: 174475 Time: 00:15:47.58 Uri
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.