New winboard engine released !!!

[Carlos del Cacho]

Geschrieben von: / Posted by: Carlos del Cacho at 18 September 2000 21:50:35:
Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

[Volker Pittlik Volker Pit]

Geschrieben von: / Posted by: Volker Pittlik Volker Pittlik at 18 September 2000 23:14:40:
Als Antwort auf: / As an answer to: New winboard engine released !!! geschrieben von: / posted by: Carlos del Cacho at 18 September 2000 21:50:35:

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

Maybe some minor improvements are necessary:
WinBoard Plus 4.0.8 + Pepito_10
Reset(1): gameMode 0
GameEnds(0, (null), 2)
StartChildProcess (dir="d:\winboard\pepito") Pepito_10
235 _first : xboard
235 _first : new
random
235 _first : level 0 2 1
235 _first : post
235 _first : hard
2203 _first : reconocido comando: new
2203 _first : reconocido comando: 1
2203 _first : reconocido comando: post
2203 _first : reconocido comando: hard
3703 _first : time 12000
otim 12000
3703 _first : e2e4
3828 _first : reconocido comando: 12000
3828 _first : reconocido comando: 12000
3828 _first : jugada: e2e4
3828 _first : [main] d:\winboard\pepito\Pepito_10.exe 1000 (0) handle_exceptions: Exception: STATUS_INTEGER_DIVIDE_BY_ZERO
3844 _first : [main] Pepito_10 1000 (0) handle_exceptions: Dumping stack trace to Pepito_10.exe.core
Fatal Error: Error: first chess program (Pepito_10) exited unexpectedly
GameEnds(0, (null), 2)
Interrupting first
3891 _first : force
Fatal Error: Error writing to first chess program:

Volker

[Lyapko George]

Geschrieben von: / Posted by: Lyapko George at 19 September 2000 08:03:14:
Als Antwort auf: / As an answer to: New winboard engine released !!! geschrieben von: / posted by: Carlos del Cacho at 18 September 2000 21:50:35:

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

First of all I try to play all new engines by myself to get estimate of their strength. At the moment I think that Pepito is

[Thomas Mayer]

Geschrieben von: / Posted by: Thomas Mayer at 19 September 2000 16:06:12:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Volker Pittlik Volker Pittlik at 18 September 2000 23:14:40:
Hi,

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

Maybe some minor improvements are necessary:
WinBoard Plus 4.0.8 + Pepito_10
Reset(1): gameMode 0
GameEnds(0, (null), 2)
StartChildProcess (dir="d:\winboard\pepito") Pepito_10
235 _first : xboard
235 _first : new
random
235 _first : level 0 2 1
235 _first : post
235 _first : hard
2203 _first : reconocido comando: new
2203 _first : reconocido comando: 1
2203 _first : reconocido comando: post
2203 _first : reconocido comando: hard
3703 _first : time 12000
otim 12000
3703 _first : e2e4
3828 _first : reconocido comando: 12000
3828 _first : reconocido comando: 12000
3828 _first : jugada: e2e4
3828 _first : [main] d:\winboard\pepito\Pepito_10.exe 1000 (0) handle_exceptions: Exception: STATUS_INTEGER_DIVIDE_BY_ZERO
3844 _first : [main] Pepito_10 1000 (0) handle_exceptions: Dumping stack trace to Pepito_10.exe.core
Fatal Error: Error: first chess program (Pepito_10) exited unexpectedly
GameEnds(0, (null), 2)
Interrupting first
3891 _first : force
Fatal Error: Error writing to first chess program:

I have the same problem, maybe, Carlos, this helps you: (content of pepito.exe.core)
[main] PEPITO100 1000 (0) exception: trapped!
[main] PEPITO100 1000 (0) exception: code 0xC0000094 at 0x421CD8
[main] PEPITO100 1000 (0) exception: ax 0x0 bx 0x0 cx 0x0 dx 0x0
[main] PEPITO100 1000 (0) exception: si 0x268FCFC di 0x4DDC60 bp 0x268FCC0 sp 0x268FCBC
[main] PEPITO100 1000 (0) exception: exception is: STATUS_INTEGER_DIVIDE_BY_ZERO
[main] PEPITO100 1000 (0) stack: Stack trace:
[main] PEPITO100 1000 (0) stack: frame 0: sp = 0x268FAB8, pc = 0x610098A0
[main] PEPITO100 1000 (0) stack: frame 1: sp = 0x268FAF4, pc = 0xBFF76849
[main] PEPITO100 1000 (0) stack: frame 2: sp = 0x268FB18, pc = 0xBFF87FE9
[main] PEPITO100 1000 (0) stack: frame 3: sp = 0x268FBAC, pc = 0xFFECBAD7
[main] PEPITO100 1000 (0) stack: frame 4: sp = 0x268FCC0, pc = 0x41263B
[main] PEPITO100 1000 (0) stack: frame 5: sp = 0x268FD84, pc = 0x6100438A
[main] PEPITO100 1000 (0) stack: frame 6: sp = 0x268FDCC, pc = 0x610043A8
[main] PEPITO100 1000 (0) stack: frame 7: sp = 0x268FDD8, pc = 0x421E5F
[main] PEPITO100 1000 (0) stack: frame 8: sp = 0x268FE08, pc = 0x40103B
[main] PEPITO100 1000 (0) stack: frame 9: sp = 0x268FE38, pc = 0xBFF8B560
[main] PEPITO100 1000 (0) stack: frame 10: sp = 0x268FF78, pc = 0xBFF8B412
[main] PEPITO100 1000 (0) stack: frame 11: sp = 0x268FFF4, pc = 0xBFF89DD5
[main] PEPITO100 1000 (0) stack: frame 12: sp = 0x843A6FEC, pc = 0x0
[main] PEPITO100 1000 (0) stack: End of stack trace
Greets, Thomas

[Carlos del Cacho]

Geschrieben von: / Posted by: Carlos del Cacho at 19 September 2000 18:22:49:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Volker Pittlik Volker Pittlik at 18 September 2000 23:14:40:

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

Maybe some minor improvements are necessary:
WinBoard Plus 4.0.8 + Pepito_10
Reset(1): gameMode 0
GameEnds(0, (null), 2)
StartChildProcess (dir="d:\winboard\pepito") Pepito_10
235 _first : xboard
235 _first : new
random
235 _first : level 0 2 1
235 _first : post
235 _first : hard
2203 _first : reconocido comando: new
2203 _first : reconocido comando: 1
2203 _first : reconocido comando: post
2203 _first : reconocido comando: hard
3703 _first : time 12000
otim 12000
3703 _first : e2e4
3828 _first : reconocido comando: 12000
3828 _first : reconocido comando: 12000
3828 _first : jugada: e2e4
3828 _first : [main] d:\winboard\pepito\Pepito_10.exe 1000 (0) handle_exceptions: Exception: STATUS_INTEGER_DIVIDE_BY_ZERO
3844 _first : [main] Pepito_10 1000 (0) handle_exceptions: Dumping stack trace to Pepito_10.exe.core
Fatal Error: Error: first chess program (Pepito_10) exited unexpectedly
GameEnds(0, (null), 2)
Interrupting first
3891 _first : force
Fatal Error: Error writing to first chess program:

Volker

Okay, I see the problem. It's because that "level 0 2 1". I didn't know total time could be zero. That's causing the division by zero when it trys to allocate time for search. Anyway it plays really badly at those time controls. I'll fix it.

[Claudio]

Geschrieben von: / Posted by: Claudio at 19 September 2000 19:48:44:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Carlos del Cacho at 19 September 2000 18:22:49:

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

Maybe some minor improvements are necessary:
WinBoard Plus 4.0.8 + Pepito_10
Reset(1): gameMode 0
GameEnds(0, (null), 2)
StartChildProcess (dir="d:\winboard\pepito") Pepito_10
235 _first : xboard
235 _first : new
random
235 _first : level 0 2 1
235 _first : post
235 _first : hard
2203 _first : reconocido comando: new
2203 _first : reconocido comando: 1
2203 _first : reconocido comando: post
2203 _first : reconocido comando: hard
3703 _first : time 12000
otim 12000
3703 _first : e2e4
3828 _first : reconocido comando: 12000
3828 _first : reconocido comando: 12000
3828 _first : jugada: e2e4
3828 _first : [main] d:\winboard\pepito\Pepito_10.exe 1000 (0) handle_exceptions: Exception: STATUS_INTEGER_DIVIDE_BY_ZERO
3844 _first : [main] Pepito_10 1000 (0) handle_exceptions: Dumping stack trace to Pepito_10.exe.core
Fatal Error: Error: first chess program (Pepito_10) exited unexpectedly
GameEnds(0, (null), 2)
Interrupting first
3891 _first : force
Fatal Error: Error writing to first chess program:

Volker

Okay, I see the problem. It's because that "level 0 2 1". I didn't know total time could be zero. That's causing the division by zero when it trys to allocate time for search. Anyway it plays really badly at those time controls. I'll fix it.

Level x y z
x is not the total time. You'd better check the engine-intf.html file in the winboard package.
x means the number of the moves to be made in the time y with an increment of z.
If x is 0, the meaning of the command changes: it now means all the match in time x with increment z.
Regards

[Thomas Mayer]

Geschrieben von: / Posted by: Thomas Mayer at 19 September 2000 20:42:35:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Thomas Mayer at 19 September 2000 16:06:12:
Hallo,
I've tested a little bit more. Pepito don't like time controls with time per game... If you use instead x moves in y minutes everything works fine... I will let it play some games no against Bestia... If Pepito is really arround 2200 it should win most...
Greets, Thomas

[Carlos del Cacho]

Geschrieben von: / Posted by: Carlos del Cacho at 20 September 2000 00:05:36:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Lyapko George at 19 September 2000 08:03:14:

Okay, there it is the first public version of Pepito. No readme file distributed at the moment, just the info on the web page. I'd like to know what you think about it, I'm ready to get savaged LOL.
Carlos
Pepito's homepage: http://www.crosswinds.net/~pepitochess

First of all I try to play all new engines by myself to get estimate of their strength. At the moment I think that Pepito is [Event "Computer chess game"]
[Site "LYAPKO"]
[Date "2000.09.19"]
[Round "-"]
[White "Lyapko"]
[Black "Pepito"]
[Result "*"]
[TimeControl "40/300"]
1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe6+ 4. Be2 Qg6 5. g3 e5 6. Nf3 Nc6 7. O-O Bd6
8. d4 Nxd4 9. Nxd4 exd4 10. Qxd4 Bh3 11. Bd3 f5 12. Re1+ Ne7 13. Nd5 Kf8
14. Nxe7 Bxe7 15. Rxe7 Kxe7 16. Qh4+ Ke6 17. Qxh3 Qg4 18. Qf1 a6 19. Bf4 g6
20. Re1+ Kd7 21. Be2 Qxf4 22. gxf4 Rae8 23. Bc4 Rhf8 24. Qd3+ Kc8 25. Rxe8+
Rxe8 26. Qh3 Re7 27. Qh6 b5 28. Bd5 Re1+ 29. Kg2 Re7 30. Bc6 Rf7 31. Be8
Rf6 32. Qg7 Rd6 33. Qxh7 Kb8 34. Bxg6 Kb7 35. Bxf5 Rd4 36. Be4+ Kb6 37. c3
Rd2 38. b4 Re2 39. Qg6+ Ka7 40. Qc6 Rxe4 41. Qxe4 Kb6 42. f5 c5 43. f6 cxb4
44. cxb4 a5 45. Qe6+ Kb7 46. f7 axb4 47. f8=Q Ka7 48. Qff7+ Ka8 49. Qee8#
e6xe8
{Game aborted} *
As you can see Pepito didn't understand that it was mated...
Sometimes it crashes after first move...
Best regards,
George

I have to agree with you. Real low quality game. I've just finished benchmarking my windows version and got 18 less problems solved at WAC. So if Pepito gets close to 2200 (personally, I don't think so) its running on Linux. As you probably have noticed, Pepito isn't a very knowledge intensive program so it relys a lot on the speed of its evaluations. Okay, about crashing on the first move: I forgot to implement games with fix time length, that might be a reason.

[Lyapko George]

Geschrieben von: / Posted by: Lyapko George at 20 September 2000 08:08:27:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Thomas Mayer at 19 September 2000 20:42:35:

Hallo,
I've tested a little bit more. Pepito don't like time controls with time per game... If you use instead x moves in y minutes everything works fine... I will let it play some games no against Bestia... If Pepito is really arround 2200 it should win most...
Greets, Thomas

I'm very interested in result of this match, 'cause I don't beleive Pepito is >2000... Yesterday I've played 8 lightning games match(40moves/2min):
Bestia v0.3c-Pepito +7=0-1 (1 game lost by Bestia on time in won position).
Maybe at longer time controls...
Greetings,
George

[Thomas Mayer]

Geschrieben von: / Posted by: Thomas Mayer at 20 September 2000 13:52:40:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Lyapko George at 20 September 2000 08:08:27:
Hi George,

Hallo,
I've tested a little bit more. Pepito don't like time controls with time per game... If you use instead x moves in y minutes everything works fine... I will let it play some games no against Bestia... If Pepito is really arround 2200 it should win most...
Greets, Thomas

I'm very interested in result of this match, 'cause I don't beleive Pepito is >2000... Yesterday I've played 8 lightning games match(40moves/2min):
Bestia v0.3c-Pepito +7=0-1 (1 game lost by Bestia on time in won position).
Maybe at longer time controls...

I've done 20 games 100 moves in 1 min... Result:
Bestia v0.3c-Pepito +11=1-8
After that I want to do 20 games 40/5 but pepito crashed after the first game... (Besides, Bestia wons the first one) But I will retry this...
As you, I think that pepito, the Windows version, is not over 2000...
What also made problems: Pepito often do not use it's opening book... Two possibilities: bug or very small book, I will check this...
Greets, Thomas

[Thomas Mayer]

Geschrieben von: / Posted by: Thomas Mayer at 20 September 2000 23:01:52:
Als Antwort auf: / As an answer to: Re: New winboard engine released !!! geschrieben von: / posted by: Thomas Mayer at 20 September 2000 13:52:40:
Hi George,

I've tested a little bit more. Pepito don't like time controls with time per game... If you use instead x moves in y minutes everything works fine... I will let it play some games no against Bestia... If Pepito is really arround 2200 it should win most...
Greets, Thomas

I'm very interested in result of this match, 'cause I don't beleive Pepito is >2000... Yesterday I've played 8 lightning games match(40moves/2min):
Bestia v0.3c-Pepito +7=0-1 (1 game lost by Bestia on time in won position).
Maybe at longer time controls...

I've done 20 games 100 moves in 1 min... Result:
Bestia v0.3c-Pepito +11=1-8
After that I want to do 20 games 40/5 but pepito crashed after the first game... (Besides, Bestia wons the first one) But I will retry this...
As you, I think that pepito, the Windows version, is not over 2000...
What also made problems: Pepito often do not use it's opening book... Two possibilities: bug or very small book, I will check this...
Greets, Thomas

I've started a Bestia03c - Pepito match, Timecontrol is 40 at 5 min, with the new pepito version everything works fine so far... (Well, only the book is not working at all, don't know why) The result is impressive, 3 - 0 so far for Pepito 1.01 and there was not much chances for Bestia... When it is finished, I will send you the pgn's and the result, I think we continue this discussion per eMail, seem to me that not many people are interested in this...
Greets, Thomas