Author: Frank Schneider
Date: 10:17:25 08/16/98
Go up one level in this thread
Hi Howard, here are Gromits results on your avoid move positions: 8/7p/R7/7k/8/p5K1/8/r7 b - - am a3a2; I think Gromit likes a2 too and would need very long to avoid it. Q6n/8/8/8/8/6K1/pk6/8 w - - am Qxh8; 8/1Q5n/8/8/8/2p5/7K/2k5 w - - am Qxh7; No problem (endgametablebases) 1kb5/8/p1p3p1/Pp1p1p1p/1P1P3P/5PP1/2PN4/5K2 w - - am=f3f4; I'm not sure if Gromit knows that f4 would be wrong but he likes Nd2-b3 better. 8/5p2/p3p1p1/1pbkP2p/5P1P/1P4P1/P3KB2/8 w - - am Bxc5; Bxc5 after 3 minutes and very likely later as well. 1r6/5k2/p4p1K/5R2/7P/8/6P1/8 w - - am Kh5; Gromit want's to play Kh5 (-95) at first but finds Kh7 after 249 sec. (-13). 8/6p1/1p5p/1R2k3/4p3/1P2P3/1K4PP/3r4 b - - am Rd5; This is a nice position and Gromit has no idea what's wrong about Rd5. 8/8/6p1/3Pkp2/4P3/2K5/6P1/n7 w - - am e4f5; bm d6; fail-low to <-400 after about 50 sec. (iteration 14) fail-high of d6 after 197 sec. (iteration 16) 8/8/6p1/3PkP2/8/2K5/6P1/n7 b - - am=g6f5; bm Kxf5; Gromit likes g6f5 with a score of 0 (iteration 19) but then fails high on Kxf5 after 491 sec (#19) And the LCTII Fin4-Position 5k2/7R/4P2p/5K2/p1r2P1p/8/8/8 b - - am h5; After 470 sec. there is a fail-high on h3, but possibly Gromit would change it's idea again later. I added the times to the Rebel-results below. Frank On August 15, 1998 at 18:44:02, Howard Exner wrote: >Thanks again to Stephen Edwards for correcting the syntax of the epd. >Here I hope is the corrected version. > >8/7p/R7/7k/8/p5K1/8/r7 b - - am a2; >Q6n/8/8/8/8/6K1/pk6/8 w - - am Qxh8; >8/1Q5n/8/8/8/2p5/7K/2k5 w - - am Qxh7; >1k6/1b6/p1p3p1/Pp1p1p1p/1P1P3P/5PP1/2PN4/5K2 w - - am f4 >8/5p2/p3p1p1/1pbkP2p/5P1P/1P4P1/P3KB2/8 w - - am Bxc5; >1r6/5k2/p4p1K/5R2/7P/8/6P1/8 w - - am Kh5; >8/6p1/1p5p/1R2k3/4p3/1P2P3/1K4PP/3r4 b - - am Rd5; >8/8/6p1/3Pkp2/4P3/2K5/6P1/n7 w - - am exf5; bm d6; >8/8/6p1/3PkP2/8/2K5/6P1/n7 b - - am gxf5; bm Kxf5; > > >Here are the results of Rebel8. > >Pos Rebel8 Default Rebel8.4G Gromit > >1 >15:00 >15:00 - >2 3:50 0:28 <0:05 >3 4:47 4:24 <0:05 >4 0:05 0:50 <0:05 (luck?) >5 >15:00 >15:00 - >6 2:10 1:37 4:09 >7 >15:00 13:24 - >8 3:00 5:30 3:17 >9 >15:00 1:12 8:11 > >Rebel8.4G is sel=4 with aggressive style >Machine is a K6-233 60mb hash > >Position 8 and 9 are from the same game. It appears >Rebel default is playing d6 in #8 for the wrong reason >as it cannot find the correct followup from #9. > >I'd like to see a program have some code for position #1. >Some sort of penalty for advancing the rook pawn to the seventh rank >when no immediate material gain is in site. This is a very common occurance >in endgames. > >As posted earlier positions 2 and 3 were found immediately by CM4000. >Do other programs include knowledge for these two basic endings?
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