Author: Dave Gomboc
Date: 16:46:03 06/18/00
Go up one level in this thread
On June 18, 2000 at 18:21:01, Ed Schröder wrote: >On June 18, 2000 at 16:34:16, blass uri wrote: > >>On June 18, 2000 at 12:00:08, Ed Schröder wrote: >> >>>On June 18, 2000 at 10:36:40, Gian-Carlo Pascutto wrote: >>> >>>>On June 18, 2000 at 10:17:08, Ed Schröder wrote: >>>> >>>>>According Rebel it is a mate in 10. >>>>> >>>>>Ed >>>>> >>>>>00:00 07.00 0.81 1.Rxh5 gxh5 2.Rxh5 Kf8 3.Rxh7 Ke8 4.Rh8+ Kd7 5.Qf5+ Kc7 >>>>>00:01 08.00 2.37 1.Rxh5 gxh5 2.Rxh5 Kf8 3.Rxh7 Ke8 4.Qf5 Kd8 5.Qxf7 Kc8 >>>>>6.Qxe7 >>>>>00:03 09.00 2.47 1.Rxh5 gxh5 2.Rxh5 Kf8 3.Rxh7 Ke8 4.Qf5 Kd8+ 5.Qxf7 Kc7 >>>>>6.Qxe7+ Kc8 >>>>>00:43 10.00 11.74 1.Rxh5 gxh5 2.Rxh5 Kf8 3.Rxh7 e6 4.Bf6 Ke8 5.dxe6 Qxc4+ >>>>>6.Qxc4 >>>>>02:35 11.00 Mate in 10 moves 1.Rxh5 Kf8 Rxh7 2.Ke8 Rxf7 3.Qxc4 Qxc4 4.g5 Rhh7 >>>>>5.b5 Rxe7+ 6.Kd8 >>>> >>>>I find it interesting to notice that even Rebel has some trouble with this, >>>>taking more than 10 times as much time to resolve the 10th ply. >>> >>>That's pretty normal whith such big score differences (2.47 -> 11.74) as >>>search is confrontated with big score fluctuations which causes move >>>ordering to collapse. I wouldn't bother too much about it, it's quite >>>normal. >> >>Not for all programs. > >Of course. > >>Chessmaster6000(ss=10) can see a forced mate in only 4 seconds and does not have >>a big branching factor > >Sure. Maybe not in this position. > >>This is normal for chessmaster to see mates clearly faster than other programs >>and I think that this is because the other programs do some mistakes in their >>search rules. > >Nope. Johan has special (mate) stuff in his search no program has. > >Ed Just curious... why don't you add it to Rebel too? :-) Dave
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.