CometB21 blows away Crafty

[Aaron]

Geschrieben von: / Posted by: Aaron at 28 April 2000 18:45:56:
Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

[Event "Computer chess game"]
[Site "PC165.21.128.62"]
[Date "2000.04.28"]
[Round "-"]
[White "cometb21"]
[Black "Crafty1710"]
[Result "1-0"]
[TimeControl "300"]
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7
8. Bxc6 bxc6 9. O-O Bc5 10. f3 Ng5 11. Be3 O-O 12. f4 Ne4 13. Nd2 f6 14.
Nxe4 dxe4 15. Qe2 Bg4 16. Qf2 Qe8 17. Nb3 Bb6 18. c4 fxe5 19. c5 exf4 20.
Bxf4 g5 21. Qg3 Rxf4 22. Rxf4 gxf4 23. Qxg4+ Qg6 24. Qxf4 Rf8 25. Qd2 Qf5
26. Rc1 Qg6 27. Qe2 Kg7 28. Rc4 Re8 29. cxb6 cxb6 30. Nd2 Qd6 31. Nxe4 Qe5
32. Ra4 a5 33. Qd2 Re6 34. Qd7+ Re7 35. Qd8 b5 36. Rd4 Kf7 37. b4 axb4 38.
Nd6+ Kg6 39. Qg8+ Rg7 40. Qe8+ Qxe8 41. Nxe8 Re7 42. Rd6+ Kf5 43. Nf6 c5
44. Nxh7 Rxh7 45. Rd5+ Ke4 46. Rxc5 Rb7 47. g3 Kd4 48. Rc2 Re7 49. Rb2 Kc3
50. Rb3+ Kc4 51. Rf3 Re1+ 52. Kg2 Re2+ 53. Rf2 Re1 54. h4 Kc3 55. g4 Re4
56. Kg3 Re1 57. h5 Rh1 58. Rh2 Rg1+ 59. Kh4 Re1 60. h6 b3 61. Rh3+ Kd4 62.
h7 Re8 63. axb3 Rh8 64. Kg3 Ke5 65. Rh6 Ke4 66. g5 Kf5 67. Kh4 Ke5 68. Kh5
Kf5 69. Rf6+ Ke5 70. Kh6 Rd8 71. Rf1 Ke4
{Black resigns} 1-0
[Event "Computer chess game"]
[Site "PC165.21.128.62"]
[Date "2000.04.29"]
[Round "-"]
[White "cometb21"]
[Black "Crafty1710"]
[Result "1-0"]
[TimeControl "300"]
1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. a4 a5 8.
Re1 c6 9. Ba2 h6 10. Nh4 Nxe4 11. Nxe4 Bxh4 12. dxe5 dxe5 13. Qh5 Qe7 14.
Bxh6 gxh6 15. Qg6+ Kh8 16. Qxh6+ Kg8 17. Re3 Nc5 18. Nxc5 Bf5 19. Ne4 Qd8
20. Rg3+ Bxg3 21. Nxg3 Bg4 22. Ne4 Bf5 23. Nf6+ Qxf6 24. Qxf6 Bxc2 25. Re1
Rad8 26. Bxf7+ Kh7 27. g3 Rde8 28. Rd1 Rd8 29. Rxd8 Rxd8
{Black resigns} 1-0
This was probably a opening book win.Comet was in book 3-4 moves deeper and crafty came out at -2 or more.I really hate it when "learning" causes Crafty to play the Philidor defence as Black..
[Event "Computer chess game"]
[Site "PC165.21.128.62"]
[Date "2000.04.28"]
[Round "-"]
[White "cometb21"]
[Black "Crafty1710"]
[Result "1-0"]
[TimeControl "300"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7
8. e3 d6 9. f3 Nbd7 10. Bd3 c5 11. Ne2 Rc8 12. Qb3 h6 13. Bh4 cxd4 14. exd4
d5 15. O-O dxc4 16. Bxc4 Nb8 17. Bd3 Nc6 18. Qa4 Qd7 19. Bxf6 gxf6 20. Rad1
Rc7 21. d5 exd5 22. Qh4 Ne5 23. Bb1 Qb5 24. Qxh6 Ng6 25. Nd4 Qxf1+ 26. Kxf1
Bc8 27. Kg1 a6 28. h4 Re7 29. h5 a5
{Black resigns} 1-0
Another really quick win..
[Event "Computer chess game"]
[Site "PC165.21.128.62"]
[Date "2000.04.28"]
[Round "-"]
[White "cometb21"]
[Black "Crafty1710"]
[Result "1/2-1/2"]
[TimeControl "300"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8.
c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Bd7 13. Nf1 cxd4 14. cxd4
Rac8 15. Ne3 Nc6 16. d5 Nb4 17. Bb1 a5 18. a3 Na6 19. b4 axb4 20. axb4 Qb7
21. Bd2 Bd8 22. Bd3 Bb6 23. Qe2 Nc7 24. Nh4 g6 25. Nc2 Nh5 26. Bh6 Nf4 27.
Qd2 Nxd3 28. Qxd3 Rfe8 29. Rec1 Ra8 30. Qf3 Rxa1 31. Rxa1 Rc8 32. Qf6 Ne8
33. Qe7 Ng7 34. Bxg7 Kxg7 35. Ne3 Bd8 36. Nhf5+ gxf5 37. Nxf5+ Kg8 38. Nh6+
Kg7 39. Nf5+ Kg6 40. Nh4+ Kg7 41. Nf5+
{Draw by repetition} 1/2-1/2
I'll play up to 20 games then move on to 30 mins games

[Mogens Larsen]

Geschrieben von: / Posted by: Mogens Larsen at 28 April 2000 19:01:23:
Als Antwort auf: / As an answer to: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 28 April 2000 18:45:56:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been removed, but I might be mistaken.
Best wishes...
Mogens

[Aaron]

Geschrieben von: / Posted by: Aaron at 28 April 2000 19:20:53:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Mogens Larsen at 28 April 2000 19:01:23:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been >removed, but I might be mistaken.
Best wishes...
Mogens

Gambit lines? Which lines? from which book the recent one ? CometB20 and B21 seems to do espically well against Crafty, it seems to me though and not all is due to book..

[Mogens Larsen]

Geschrieben von: / Posted by: Mogens Larsen at 28 April 2000 19:38:31:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 28 April 2000 19:20:53:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been >removed, but I might be mistaken.
Best wishes...
Mogens

Gambit lines? Which lines? from which book the recent one ? CometB20 and B21 seems to do espically well against Crafty, it seems to me though and not all is due to book..

I was thinking about the old Axx and early Bxx books. I haven't found a lot of gambits or risky openings in the last games I've played with Comet. Comet does well at blitz, no doubt about it.
Best wishes...
Mogens

[Pete Galati]

Geschrieben von: / Posted by: Pete Galati at 28 April 2000 20:34:43:
Als Antwort auf: / As an answer to: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 28 April 2000 18:45:56:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

Just a suggestion here, try adding a second Winboard shortcut to your desk top, and instead of what I have for a normal shortcut:
D:\winboard\winboard.exe /debug
what I have for the second is this:
D:\winboard\winboard.exe /mg 4
this will have Winboard play a match that is in this case 4 games long, and that would switch Comet & Crafty back in forth on sides of the board with each game, and if you have Winboard automatically saving each game to a pgn file (see Options/save game) you get a record of your match.
You can set things up for your match in your Winboard started up with the original shortcut.
I think Comet is better in blitz games than Crafty is. My guess would be that if you played a large amount of Blitz games between Comet/Crafty, Comet will still continue to be the winning program.
I have downloaded the new Comet, but at the moment it's still in zip files in my temp directory, I'll get to it today. I like Comet allot.
Pete

[Aaron]

Geschrieben von: / Posted by: Aaron at 28 April 2000 21:10:42:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Pete Galati at 28 April 2000 20:34:43:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

Just a suggestion here, try adding a second Winboard shortcut to your desk >top, and instead of what I have for a normal shortcut:
D:\winboard\winboard.exe /debug
what I have for the second is this:
D:\winboard\winboard.exe /mg 4
this will have Winboard play a match that is in this case 4 games long, and >that would switch Comet & Crafty back in forth on sides of the board with each >game, and if you have Winboard automatically saving each game to a pgn file
(see Options/save game) you get a record of your match.
You can set things up for your match in your Winboard started up with the >original shortcut.

You can tell i'm doing it manually? So all i do is i create a shortcut them type the above? what does /mg 4 do? and /debug?

[U.Türke]

Geschrieben von: / Posted by: U.Türke at 28 April 2000 21:59:28:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Mogens Larsen at 28 April 2000 19:01:23:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been removed, but I might be mistaken.
Best wishes...
Mogens

All of the gambits are still im the book, however with far decreased weights. Recently, in a tourney I had to observe Comet playing the Cochrane against a strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.
Uli

[Dann Corbit]

Geschrieben von: / Posted by: Dann Corbit at 28 April 2000 22:03:56:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: U.Türke at 28 April 2000 21:59:28:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been removed, but I might be mistaken.
Best wishes...
Mogens

All of the gambits are still im the book, however with far decreased weights. Recently, in a tourney I had to observe Comet playing the Cochrane against a strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.

I think that the two engines are so close that it would take millions of games to see which is the stronger at the quick games. By that time, both Crafty and Comet would be moved on to new versions and nobody would care.
BTW, thanks for all your excellent research with Comet. I enjoy its excellent play. For me, I like best the programs which I can investigate the source code because, well -- I'm nosy. But of the ones where you can't see the source, Comet is one of my favorites.


My FTP site

[U.Türke]

Geschrieben von: / Posted by: U.Türke at 28 April 2000 23:17:21:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Dann Corbit at 28 April 2000 22:03:56:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

No, that is my opinion too. A think that some of the gambit lines has been removed, but I might be mistaken.
Best wishes...
Mogens

All of the gambits are still im the book, however with far decreased weights. Recently, in a tourney I had to observe Comet playing the Cochrane against a strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.

I think that the two engines are so close that it would take millions of games to see which is the stronger at the quick games. By that time, both Crafty and Comet would be moved on to new versions and nobody would care.
BTW, thanks for all your excellent research with Comet. I enjoy its excellent play. For me, I like best the programs which I can investigate the source code because, well -- I'm nosy. But of the ones where you can't see the source, Comet is one of my favorites.

Thanks for your interest!
Well, regarding the source, it is a terrible mess. In principle, there is still some similarity with the old gnu sources (version 3.1 (?)), surely with a lot of modifications and additions but nothing really exciting. For these reasons, it is probably not worthwhile diving into this.
Uli

[Dann Corbit]

Geschrieben von: / Posted by: Dann Corbit at 28 April 2000 23:30:59:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: U.Türke at 28 April 2000 23:17:21:
[snip]

Well, regarding the source, it is a terrible mess. In principle, there is still some similarity with the old gnu sources (version 3.1 (?)), surely with a lot of modifications and additions but nothing really exciting. For these reasons, it is probably not worthwhile diving into this.

Well, the old GnuChess 4.x program was pretty icky, all right. Don't remember 3 very well at all, except the one that had a Windows GUI.
I respect your right to privacy with all your hard work, of course.
But I would still like to peek at it. I have found something worthy of purloining from nearly ever source file I have examined in all the chess programs I have poked around in. Since Comet is so successful, I am sure there are some fits of genius hidden away in there.

[Pete Galati]

Geschrieben von: / Posted by: Pete Galati at 28 April 2000 23:54:35:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 28 April 2000 21:10:42:

Disclaimer
1)It is only Blitz 5 mins
2)Ponder off and we know how crafty is weaken by it
3)Number of games insufficient
Still I'm impressed by How quick cometb21 wins in some games..IS it me or is Comet's book a lot better now...

Just a suggestion here, try adding a second Winboard shortcut to your desk >top, and instead of what I have for a normal shortcut:
D:\winboard\winboard.exe /debug
what I have for the second is this:
D:\winboard\winboard.exe /mg 4
this will have Winboard play a match that is in this case 4 games long, and >that would switch Comet & Crafty back in forth on sides of the board with each >game, and if you have Winboard automatically saving each game to a pgn file
(see Options/save game) you get a record of your match.
You can set things up for your match in your Winboard started up with the >original shortcut.

You can tell i'm doing it manually? So all i do is i create a shortcut them type the above? what does /mg 4 do? and /debug?

I could tell that you did it manually because all of the games have Comet on the White side of the board, also, because the pgn files do not label which game in the match each one was
/debug just makes a debug file of the last Winboard game played, and it constantly overwrites it with every game, it'll be in an ascii text file called winboard.debug. This isn't generally needed, my appologies for showing that part because it was probably only confusing things. Sorry.
With /mg 4, the /mg means match game, and the 4 means that the match will be 4 games long.
So you could change that to /mg 6 and the match would be 6 games long, I change the number often depending on how much time I'm willing to give up the use of my computer for. I just click on the shortcut once to highlight it, then hit Alt-Enter to get at the properties to be able to easily change that.
You probably can not use what I have above because the path information will not be correct for where your Winboard is located. It would be best if when you create a new shortcut if you use "browse" to locate and get the correct path of where _your_ winboard is located at, and then modify it slightly to add the /mg to that. I hope that makes sense, but I'm not sure if I expained it well enough.
Pete

[Volker Pittlik]

Geschrieben von: / Posted by: Volker Pittlik at 29 April 2000 03:19:06:
Als Antwort auf: / As an answer to: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 28 April 2000 18:45:56:
I'm just trying to build a _weak_ book for Crafty. Time control is game in 5. I'm using Comet_B21 as opponent. Results so far:
No. Name Win Draw Loss Unf. Score Games %
------------------------------------------------------------
1 Crafty1710_weak +54 =15 -14 *0 61.5 83 74.1%
2 Comet_B21 +14 =15 -54 *0 21.5 83 25.9%
Total Games: 83
White Wins: 40 (48.2%)
Black Wins: 28 (33.7%)
Draws: 15 (18.1%)
Unfinished: 0 (0.0%)
System is 2*520 MHz, Ponder on, all 3, 4 and some 5 men tablebases.
Sorry me for destroying some illusions.
Volker

[Aaron]

Geschrieben von: / Posted by: Aaron at 29 April 2000 09:01:08:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Pete Galati at 28 April 2000 23:54:35:

You can tell i'm doing it manually? So all i do is i create a shortcut them >>type the above? what does /mg 4 do? and /debug?

I could tell that you did it manually because all of the games have Comet on >the White side of the board, also, because the pgn files do not label which >game in the match each one was /debug just makes a debug file of the last >Winboard game played, and it constantly overwrites it with every game, it'll >be in an ascii text file called winboard.debug. This isn't generally needed, >my appologies for showing that part because it was probably only confusing >things. Sorry.
With /mg 4, the /mg means match game, and the 4 means that the match will be 4 >games long.
So you could change that to /mg 6 and the match would be 6 games long, I >change the number often depending on how much time I'm willing to give up the >use of my computer for. I just click on the shortcut once to highlight it, >then hit Alt-Enter to get at the properties to be able to easily change that.
You probably can not use what I have above because the path information will >not be correct for where your Winboard is located.
Pete

I may be a little slow with computers, but even I'm smart enough to try it out while changing the path to my directory..But thanks a lot , I always wanted to try the reuse function as well, how different is it from /mg ?

[Aaron]

Geschrieben von: / Posted by: Aaron at 29 April 2000 09:05:38:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: U.Türke at 28 April 2000 21:59:28:

All of the gambits are still im the book, however with far decreased weights. >Recently, in a tourney I had to observe Comet playing the Cochrane against a >strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.

The cochrane is a opening gambit? Never heard of it..

In Blitz? Perhaps, but I think CometB20-B21 is a lot closer than before..Comet also seems to be in the opening book 1-2 plies deeper than Crafty in most lines, I'm not sure if it's due to crafty's learning function kicking in early where due to losses it searches for some other move or something else..

[Mogens Larsen]

Geschrieben von: / Posted by: Mogens Larsen at 29 April 2000 09:22:27:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 29 April 2000 09:01:08:

I may be a little slow with computers, but even I'm smart enough to try it out while changing the path to my directory..But thanks a lot , I always wanted to try the reuse function as well, how different is it from /mg ?

The reuse command is default, so your only experimentational option is to turn it off ). Reuse just makes sure that the engines are reloaded after each match or not, but you still have to use /mg. You could call them complementary commands.
BW...
MCL


MCL

[Aaron]

Geschrieben von: / Posted by: Aaron at 29 April 2000 10:13:59:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Volker Pittlik at 29 April 2000 03:19:06:

I'm just trying to build a _weak_ book for Crafty. Time control is game in 5. I'm using Comet_B21 as opponent. Results so far:
No. Name Win Draw Loss Unf. Score Games %
------------------------------------------------------------
1 Crafty1710_weak +54 =15 -14 *0 61.5 83 74.1%
2 Comet_B21 +14 =15 -54 *0 21.5 83 25.9%
Total Games: 83
White Wins: 40 (48.2%)
Black Wins: 28 (33.7%)
Draws: 15 (18.1%)
Unfinished: 0 (0.0%)
System is 2*520 MHz, Ponder on, all 3, 4 and some 5 men tablebases.
Sorry me for destroying some illusions.

No problem. I don't really have anything really invested in my results anyway..
And you are using ponder on and 2 computers hence your results are more accurate anyway..Still I just report and watch what results i get..

Still perhaps your book is much better than you think!

[U.Türke]

Geschrieben von: / Posted by: U.Türke at 29 April 2000 18:54:41:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Volker Pittlik at 29 April 2000 03:19:06:

I'm just trying to build a _weak_ book for Crafty. Time control is game in 5. I'm using Comet_B21 as opponent. Results so far:
No. Name Win Draw Loss Unf. Score Games %
------------------------------------------------------------
1 Crafty1710_weak +54 =15 -14 *0 61.5 83 74.1%
2 Comet_B21 +14 =15 -54 *0 21.5 83 25.9%
Total Games: 83
White Wins: 40 (48.2%)
Black Wins: 28 (33.7%)
Draws: 15 (18.1%)
Unfinished: 0 (0.0%)
System is 2*520 MHz, Ponder on, all 3, 4 and some 5 men tablebases.
Sorry me for destroying some illusions.
Volker

Hi Volker, I hope that you did not use the multiprocessor version of crafty on your 2 cpu machine ?
This would probably distort the result, because the SMP engine would get one cpu 100% and the other one 50%. At least I guess so.
Uli

[Volker Pittlik]

Geschrieben von: / Posted by: Volker Pittlik at 30 April 2000 00:47:49:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: U.Türke at 29 April 2000 18:54:41:

Hi Volker, I hope that you did not use the multiprocessor version of crafty on your 2 cpu machine ?
This would probably distort the result, because the SMP engine would get one cpu 100% and the other one 50%. At least I guess so.
Uli

Hi Uli!
To use a SMP version and a version for a single CPU simultaneously would be a horrible setup but I was using Crafty's version for one CPU. I'm using the SMP version only for analyzing and playing on ICSs. I'm checking this always with NT's task manager. The main purpose for this test wasn't to test Comet but my book for Crafty. Unfortunately everything (including my tournament!) I have done/posted here and elsewhere about this in the last weeks is nothing else but complete b***sh** (((.
(Hint for everyone who would like to fiddle around with Crafty's books: use the books from Dr. Hyatt's site, read all FAQs, readmes... carefully (maybe the excellent comments in main.c and book.c will help also) create a start.pgn which serves your purposes and use the "books create" command properly, if necessary use the bookw command (use "info" in a DOS box to get the values for the defaults)).
I now have about 140 games at 5 0 with Crafty and Comet (played with Winboard 4.0.5. to prevent Winboard sending the "computer" command what change Crafty's book selection). Crafty has "won". But this is not very surprising/important for me. I have also played some games at very fast time controls (1 0). I think your program has some problems at this settings. But this time control is also not very important IMHO although even Crafty has lost a game on time at this settings.
The only interesting thing perhaps: Crafty was playing some very unusual openings. It seems that your program and TCB also are very surprised by some moves. I don't want to post this moves here. Please mail me for details.
Volker

[U.Türke]

Geschrieben von: / Posted by: U.Türke at 01 May 2000 21:03:36:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 29 April 2000 09:05:38:

All of the gambits are still im the book, however with far decreased weights. >Recently, in a tourney I had to observe Comet playing the Cochrane against a >strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.

The cochrane is a opening gambit? Never heard of it..

In Blitz? Perhaps, but I think CometB20-B21 is a lot closer than before..Comet also seems to be in the opening book 1-2 plies deeper than Crafty in most lines, I'm not sure if it's due to crafty's learning function kicking in early where due to losses it searches for some other move or something else..

1.e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7
IMO, a quite interesting line. Perhaps not against a strong program ?
Uli

[Dann Corbit]

Geschrieben von: / Posted by: Dann Corbit at 01 May 2000 21:06:00:
Als Antwort auf: / As an answer to: Re: CometB21 blows away Crafty geschrieben von: / posted by: Aaron at 29 April 2000 09:05:38:

All of the gambits are still im the book, however with far decreased weights. >Recently, in a tourney I had to observe Comet playing the Cochrane against a >strong computer. I do not want to see this happen too often.
BTW, according to my statistics, crafty is clearly superior.

The cochrane is a opening gambit? Never heard of it..
In Blitz? Perhaps, but I think CometB20-B21 is a lot closer than before..Comet also seems to be in the opening book 1-2 plies deeper than Crafty in most lines, I'm not sure if it's due to crafty's learning function kicking in early where due to losses it searches for some other move or something else..

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C37"]
[Opening "KGA"]
[Variation "Cochrane gambit"]
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5 Qh4+ 6. Kf1 f3 *
Or:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Cochrane gambit"]
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 *
Or even:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C44"]
[Opening "Scotch"]
[Variation "Cochrane variation @ (seldom played-pwo)"]
1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxe5 Ne6 5. Bc4 c6 6. O-O Nf6 7. Nxf7 *
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C44"]
[Opening "Scotch gambit"]
[Variation "Cochrane variation @ (seldom played-pwo)"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ *

With two engines of approximately the same ability, it will take a very large number of trials to find out which one is really the stronger.