Author: Gerhard Sonnabend
Date: 10:11:25 10/14/03
Go up one level in this thread
On October 14, 2003 at 10:38:00, Mikael Bäckman wrote: >On October 14, 2003 at 07:21:47, James T. Walker wrote: > >>On October 14, 2003 at 06:46:39, martin fierz wrote: >> >>>On October 14, 2003 at 06:19:17, Gerhard Sonnabend wrote: >>> >>>>Hi ! >>>> >>>>The second match is closed. >>>>(I only post the short tables here) >>>> >>>>Could any chessprogram profit from longer/shorter levels ? >>>> >>>>At the moment i carry out an experiment to find out if there are chessengines >>>>which profit from shorter or longer (time)levels more than other engines. >>>>Played on a P4-1600 / 64MB HTs / 4-TBs / ponder=off >>>>with the "Noomen" (A-H) (=160 games every match) under the ChessBase-Fritz7-GUI. >>>> >>>>Completed are: >>>>Shredder 7.04 vs Junior 8.0.0.2 >>>> Total (+ 1/2 -) >>>> 5min/game 98.5-61.5 (87-23-50) >>>> 10min/game 94.0-66.0 (76-36-48) >>>> 30min/game 92.5-67.5 (70-45-45) >>>>120min/game 89.5-70.5 (65-49-46) >>>> >>>>and: >>>> >>>>Shredder 7.0(CB) vs Fritz 8.0.0.5 >>>> Total (+ 1/2 -) >>>> 5min/game 63.0-97.0 (40-46-74) >>>> 10min/game 68.0-92.0 (49-38-73) >>>> 30min/game 72.5-87.5 (47-51-62) >>>>120min/game 68.5-91.5 (43-51-66) >>>> >>>>The current matches is (after 120 games per Level): >>>>Chess Tiger 15.0(CB) "Normal" vs Beta-WIN-Rebel 12 (style=Test12a) >>>> Total (+ 1/2 -) >>>> 5min/game 83.0-37.0 (68-30-22) >>>> 10min/game 80.0-40.0 (63-34-23) >>>> 30min/game 68.5-51.5 (48-41-31) >>>>120min/game 65.5-54.5 (41-49-30) >>>>(Played on a Cel. 1.8GHz / 128MB HTs / ...the rest look above) >>>> >>>>The details and the games can be found on: >>>>www.pcschach.de >>>> >>>>Best G.S. >>> >>>nice tests! shredder vs junior and CT15 vs rebel 12 beta at least show trends of >>>favoring one program at short and another program at long time control. >>> >>>this seems quite natural to me. if one program has better move ordering than >>>another it will do better at longer time controls, since better MO is an >>>exponential gain. i have seen this behavior in my checkers program in matches >>>against another program - mine does better at longer time controls. and, since i >>>know the other programmer well, i also know that i spend a lot more time on move >>>ordering. so i'm not really surprised about my checkers result. i'm more >>>surprised that some people don't want to believe that this effect exists :-) >>> >>>cheers >>> martin >> >>So what would happen if you took Shredder vs Junior & CT15 vs Rebel 12 beta and >>played them at G/120 minutes on a 286-12Mhz cpu ?? > > >I guess the results would be similar to the 5min/game listed above. > >/Mikael Hi Mikael ! I'dont think so. Playing 5m/g it can happen all what you think about or not. Playing games with 5 or 10m/g is nonsense. I've seen games on this level where one engine has had +7.00 or more and less moves later this engine lost the game (not on time) !!! The MHz of the CPU isn't important. With longer time control i've never seen such unusual behavior. I think that the result on "this" 286-12MHz and 120m/g would bring the same result as my match on the P4 on this level ! Best G.S.
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