Author: Pete Galati
Date: 15:27:41 02/24/01
Go up one level in this thread
On February 24, 2001 at 16:52:46, leonid wrote: >On February 24, 2001 at 16:03:06, Pete Galati wrote: > >>On February 24, 2001 at 09:42:54, Volker Pittlik wrote: >> >>>On February 24, 2001 at 08:55:41, leonid wrote: >>> >>>... >>>> >>>>Don't forget to mention your program and your hardware. >>> >>>Your test position is causing an access violation in my copy of crafty. >>>There is no difference if I start it in text mode or with winboard. >>> >>>I'm running a dual celeron with NT 4.0, SP5. >>> >>>Here are some parts my winboard.debug: >>> >>>recognized 'normal' (-1) as variant normal >>>WinBoard 4.2.3 + Crafty_183smp >>>Reset(1): gameMode 0 >>>recognized 'normal' (-1) as variant normal >>>GameEnds(0, (null), 2) >>>StartChildProcess (dir="d:\Winboard\crafty") Crafty_183smp >>>187 >first : xboard >>>protover 2 >>>187 >first : new >>> >>>... >>> >>>4047 <first : tellics set 1 Crafty v18.3 (2 cpus) >>>4047 <first : game/2 minutes primary time control >>>4078 <first : increment 2 seconds. >>>4078 <first : pondering enabled. >>>7859 >first : force >>>7859 >first : setboard >>>4bB2/n1NQq1b1/1Q2Q3/1q2Q1q1/rqn4R/kq2QQqQ/rnQn2R1/N1Qq1B1K w - - 0 1 >>>Fatal Error: Error: first chess program (Crafty_183smp) exited unexpectedly >>>GameEnds(0, (null), 2) >>>10672 >first : quit >>> >>> >>>Other test positions don't cause any trouble. Normal games games or engine >>>matches can be played without problems: >>> >>>... >>> >>>3875 <first : pondering enabled. >>>7329 >first : force >>>7329 >first : setboard 1q4r1/1bp2pQ1/3Q4/1Kp1pr2/1n1pkp1p/RQ1RN3/nbnP4/QN6 w - - >>>0 1 >>>13532 >first : analyze >>>13532 <first : Analyze Mode: type "exit" to terminate. >>>13891 <first : 3 -32763 3 6220 1. Qxg8 Ba6+ 2. Kxc5 cxd6# >>>14579 <first : 4 -118 75 212434 1. Qdxe5+ Rxe5 2. Qxe5+ Kxe5 3. Nc4+ >>>Kf6 4. Qaxb2 Nxa3+ 5. Nbxa3 >>>15157 <first : 5 -346 132 467803 1. Qdxe5+ Rxe5 2. Qxe5+ Kxe5 3. Nc4+ >>>Kf5 4. Nd6+ cxd6 5. Qxf7+ Kg4 6. Qxb2 Nxa3+ 7. Rxa3 >>>15547 >first : . >>>15547 <first : stat01: 171 494760 5 61 63 >>>17454 <first : 5 -346 362 1303848 1. Qdxe5+ Rxe5 2. Qxe5+ Kxe5 3. Nc4+ >>>Kf5 4. Nd6+ cxd6 5. Qxf7+ Kg4 6. Qxb2 Nxa3+ 7. Rxa3 >>>17563 >first : . >>>17563 <first : stat01: 373 1314357 6 62 63 >>>19579 >first : . >>> >>>... >>> >>>Maybe Bob can help... >>> >>>TIA >>> >>>Volker >> >>With leonid's positions, it seems to be a good idea to put them in a file and >>load them like this: >> >>epdlrec [filename] [linenumber] >> >>You DO need to put in the line number, even if there's only the one epd in the >>file. >> >>White(1): epdlrec new.epd 1 >>White(1): d >>White(1): analyze >>middle-game phase >> clearing hash tables >> time surplus 0.00 time limit 30.00 (3:30) >> nss depth time score variation (1) >> 1 30.59 21.33 1. Qdxe7 >> 1 31.41 ++ 1. Nxb5+!! >> 1 1:15 27.33 1. Nxb5+ Nxb5 2. Rxg3 >> 1-> 1:15 27.33 1. Nxb5+ Nxb5 2. Rxg3 >> 2 1:29 27.33 1. Nxb5+ Nxb5 2. Rxg3 >> 2-> 2:12 27.33 1. Nxb5+ Nxb5 2. Rxg3 >> 3 3:57 27.33 1. Nxb5+ Nxb5 2. Rxg3 Qxe5 3. Qdxe7 >> 3-> 4:46 27.33 1. Nxb5+ Nxb5 2. Rxg3 Qxe5 3. Qdxe7 >> 4 9:18 27.33 1. Nxb5+ Nxb5 2. Rxg3 Qxe5 3. Qdxe7 >> 4-> 13:09 27.33 1. Nxb5+ Nxb5 2. Rxg3 Qxe5 3. Qdxe7 >> 5 18:37 ++ 1. Nxb5+!! >> 5 19:08 30.33 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qdxe7+ Ncd6 5. Qexb3+ Qxb3 >> 6. Q5xg5 >> 5-> 22:02 30.33 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qdxe7+ Ncd6 5. Qexb3+ Qxb3 >> 6. Q5xg5 >> 6 22:54 ++ 1. Nxb5+!! >> 6 22:56 Mat07 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qbc5+ Qxc5 5. Bxc5+ Rb4 6. >> Qa6+ Na5 7. Qxa5# >> 6-> 23:18 Mat07 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qbc5+ Qxc5 5. Bxc5+ Rb4 6. >> Qa6+ Na5 7. Qxa5# >> 7 23:50 Mat07 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qbc5+ Qxc5 5. Bxc5+ Rb4 6. >> Qa6+ Na5 7. Qxa5# >> 7-> 27:43 Mat07 1. Nxb5+ Nxb5 2. Qexb3+ Nxb3 3. Qcxb3+ >> Qbxb3 4. Qbc5+ Qxc5 5. Bxc5+ Rb4 6. >> Qa6+ Na5 7. Qxa5# >>White(1): exit >>White(1): q >>execution complete. >> >>(700mhz Celeron) >> >>Pete > >It is curious to see for me that Crafty (that have nothing to do with my program >code) look through this position at almost indentical time. All programs end >somewhere by the same raw speed?... I don't know exactly how much time it will >take for my program to look all position by brute force but it should be slighly >over one hour. Taking in consideration difference in computer speed and absence >on mine hash table, speed for both programs should be identical. Pretty strange! > >Mine brute force was: >4 moves - 1.04 sec >5 moves - 9.2 sec >6 moves - 2 min 31 sec. > >First mate in 7 was found in 3 min 20 sec. Very quickly 2 others were found. >Fourth I waited for around one hour and disconnected computer before finishing >search. Was almost sure that 3 responses are the only one that existe for this >position. > >Leonid. Crafty was a bit slow to start displaying searches on this position, but I went and took a shower and it had found a mate by the time I got back to the computer. I keep meaning to ask, is your program available to download anywhere? Pete
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