Author: Steven J. Brann
Date: 16:11:13 06/26/03
Go up one level in this thread
On June 26, 2003 at 13:32:36, John Merlino wrote: >On June 26, 2003 at 11:18:26, Igor Gorelikov wrote: > >>One Test position >>================== >> >>There is a section of everyday's puzzles on my site: >>http://www.digichess.gr/infiniteloop/home.php >> >>All puzzles are taken from engine to engine games of Infinite Loop. >> >>Prior to publish a puzzle on my site I always offer Crafty 19.3 to solve it. >> >>I was amazed that today's puzzle was hard to solve even for Crafty so it >>can be a good test position for any chess engine. >> >>What Phalanx XXII (engine number 10 among free WB engines) plays here as >>white (and find it at once)? >> >>[D] r1bq3r/ppp3pp/3k4/3p4/3nP1Q1/8/PP4PP/RN3RK1 w - - 0 17 >> >>PS: Yace can find it after some time too. >> >>Best regards, >>Igor Gorelikov > >On a moderately busy (since I'm at work) and humble P3-750, it takes Chessmaster >9000 (default personality) almost six minutes to produce a score > 1.0, even >though The King chooses e5+ instantly. So, on today's top hardware, it will >definitely produce a +1 score in under two minutes: > >Time Depth Score Positions Moves >0:00 1/3 0.64 3599 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > Rf8 >0:00 1/4 1.21 10186 17.e5+ Kxe5 18.Qxg7+ Ke6 19.Qxd4 > Rf8 20.Nc3 Rxf1+ 21.Rxf1 >0:00 1/5 0.89 37549 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > c5 20.Qf4+ Kc6 21.Nc3 >0:01 1/6 0.83 117405 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > Rf8 20.Nc3 Rxf1+ 21.Rxf1 Be6 >0:03 1/7 0.77 381074 17.e5+ Kxe5 18.Qf4+ Ke6 19.Qxd4 > Rf8 20.Nc3 Rf6 21.Rae1+ Kf7 22.Nxd5 > Rxf1+ 23.Kxf1 >0:13 1/8 0.92 1320923 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > c5 20.Qf4+ Kc6 21.Nc3 b5 22.Qf7 Qd6 >0:34 1/9 0.84 3591060 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > Be6 20.Nc3 Kd7 21.Rae1 c6 22.Qg7+ > Qe7 >1:41 1/10 0.94 10629633 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > Be6 20.Nc3 Kd7 21.Rae1 Rf8 22.Rxf8 > Qxf8 23.Nxd5 Bxd5 24.Qxd5+ Kc8 >5:49 2/11 1.15 34058081 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 > Be6 20.Nc3 Kd7 21.Rae1 Qg8 22.Ne4 > Kc8 23.Nd6+ cxd6 24.Rxe6 > >jm John, You're right... under two minutes <S>. I have a new Win XP 3.0G P4 with hyperthreading which, for Chessmaster is the best thing since sliced bread. Not only is it fast but In the task manager shows only 50% of the CPU utilized. I can run other applications concurrently with CM while mentor lines are calculating and the other applications don't drag a bit. Chessmaster when "thinking" brought my 1.9G P4 to its knees. If the screen saver happened to kick in it would take over 2 minutes after wiggling the mouse to get the screen back. Right now while mentor (CM default with SS=12) evaluates this position, I'm writing this, polling for email, have two instant messengers going and am checking spelling once in awhile using Word. Granted, the other applications don't take much CPU, but they're certainly not dragged down while CM is having a deep think. Incredible and a pleasant surprise. On an unrelated topic... is the CM descriptive notation hosed up? For this position it says P-R5ch Time Depth Score Positions Moves 0:00 1/6 0.83 117405 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 Rf8 20.Nc3 Rxf1+ 21.Rxf1 Be6 0:01 1/7 0.77 381074 17.e5+ Kxe5 18.Qf4+ Ke6 19.Qxd4 Rf8 20.Nc3 Rf6 21.Rae1+ Kf7 22.Nxd5 Rxf1+ 23.Kxf1 0:04 1/8 0.92 1320321 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 c5 20.Qf4+ Kc6 21.Nc3 b5 22.Qf7 Qd6 0:11 1/9 0.84 3720213 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 Be6 20.Nc3 Kd7 21.Rae1 c6 22.Qg7+ Qe7 0:33 1/10 0.94 10840872 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 Be6 20.Nc3 Kd7 21.Rae1 Rf8 22.Rxf8 Qxf8 23.Nxd5 Bxd5 24.Qxd5+ Kc8 1:37 1/11 1.15 32477521 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 Be6 20.Nc3 Kd7 21.Rae1 Qg8 22.Ne4 Kc8 23.Nd6+ cxd6 24.Rxe6 7:22 1/12 1.28 146459865 17.e5+ Kxe5 18.Qxg7+ Kd6 19.Qxd4 Be6 20.Nc3 Kd7 21.Rae1 Re8 22.Nxd5 Kc8 23.Qa4 Kb8 Steve
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