CountryChess 02: USA, premier division

Discussion of computer chess matches and engine tournaments.

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countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

CountryChess 02: USA, premier division

Post by countrychess »

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CountryChess 02-10 USA premier division,

Listing of Players
 N     Name                     Ratin 
  1    Komodo 5 X64             3038  
  2    Zappa Mexico2 X64 6Cpu   2869  
  3    Arasan 15.0 X64 6Cpu     2725  
  4    Crafty 23.5 Ja X64 6Cpu  2661  
  5    Daydreamer 1.75 Ja X64   2627  
  6    Slowchess Blitz Wv 2.1   2613  
  7    Dorky 4.3 X64 6Cpu       2496  
  8    Exchess 6.50B X64        2481  
  9    Xpdnt 091007 Ja          2439  
 10    Romichess P3L X64        2423  
 11    Gnuchess 5.07.174-1B X64 2409  
 12    Djinn 0.969 X64          2336  
The tournament starts right now.
carldaman
Posts: 2287
Joined: Sat Jun 02, 2012 2:13 am

Re: CountryChess 02: USA, premier division

Post by carldaman »

Hi Geert. I would expect EXchess v6.50Bx64 to perform clearly better than its published 2481 rating. :D

Cheers,
CL
countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

Re: CountryChess 02: USA, premier division

Post by countrychess »

carldaman wrote:Hi Geert. I would expect EXchess v6.50Bx64 to perform clearly better than its published 2481 rating. :D

Cheers,
CL
Hello Carl,

My eloratings are not the most relevant ones. The time control of my tournament is rother long so the number of games played by an engine is still very low. EXChess has played 44 games so far from which 50% has been played by version 6.10b.

EXChess started the tournament with 2 draws: against Crafty which I think is really good, and against the surprisingly strong GnuChess. Its next opponent will be ... Komodo :-).

Best regards,
Geert
countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

Standings after first leg

Post by countrychess »

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CountryChess 02-10 USA
Halle, 2012.10.29 - 2012.11.02
                             Score       SB   K C Z A S D D G D E x R
----------------------------------------------------------------------
 1: Komodo 5 64-bit         9.5 / 11   48.25  X = 1 1 1 1 = = 1 1 1 1
 2: Crafty 23.5 JA          8.0 / 11   38.75  = X = = 1 = = 1 1 = 1 1
 3: Zappa Mexico II         8.0 / 11   37.25  0 = X 1 = 1 = 1 1 = 1 1
 4: Arasan 15.0             6.5 / 11   30.25  0 = 0 X 1 1 1 0 = = 1 1
 5: SlowChess Blitz WV2.1   6.5 / 11   27.25  0 0 = 0 X 1 = = 1 1 1 1
 6: Daydreamer 1.75 JA      6.5 / 11   25.00  0 = 0 0 0 X 1 1 1 1 1 1
 7: Djinn 0.969             4.5 / 11   23.50  = = = 0 = 0 X = 0 = 1 =
 8: GnuChess 5.07-174.1b    4.0 / 11   21.75  = 0 0 1 = 0 = X = = 0 =
 9: Dorky 4.3               4.0 / 11   15.75  0 0 0 = 0 0 1 = X 1 0 1
10: EXChess 6.50b           3.5 / 11   18.00  0 = = = 0 0 = = 0 X 1 0
11: xpdnt_091007 JA         2.5 / 11    9.25  0 0 0 0 0 0 0 1 1 0 X =
12: RomiChess P3L           2.5 / 11    9.00  0 0 0 0 0 0 = = 0 1 = X
----------------------------------------------------------------------
66 games: +28 =22 -16


countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

Standings after second leg

Post by countrychess »

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CountryChess 02-10 USA
Halle, 2012.10.29 - 2012.11.07
                             Score       SB   Ko Cr Za Ar Gn EX Da Sl Do Dj xp Ro
----------------------------------------------------------------------------------
 1: Komodo 5 64-bit        19.5 / 22  190.50  XX == 1= 11 =1 11 11 11 11 =1 11 11
 2: Crafty 23.5 JA         17.5 / 22  171.25  == XX =1 =1 1= =1 =1 11 1= =1 11 11
 3: Zappa Mexico II        16.0 / 22  147.00  0= =0 XX 1= 11 == 11 =1 1= =1 11 11
 4: Arasan 15.0            13.5 / 22  111.00  00 =0 0= XX 0= =0 11 11 =1 11 11 11
 5: GnuChess 5.07-174.1b   11.0 / 22  105.50  =0 0= 00 1= XX =1 01 =1 =1 =0 01 =1
 6: EXChess 6.50b          11.0 / 22  103.25  00 =0 == =1 =0 XX 01 0= 11 =1 1= 01
 7: Daydreamer 1.75 JA     10.5 / 22   82.25  00 =0 00 00 10 10 XX 01 11 11 10 11
 8: SlowChess Blitz WV2.1   9.0 / 22   70.50  00 00 =0 00 =0 1= 10 XX 10 =0 11 11
 9: Dorky 4.3               7.5 / 22   62.00  00 0= 0= =0 =0 00 00 01 XX 1= 01 11
10: Djinn 0.969             7.0 / 22   73.25  =0 =0 =0 00 =1 =0 00 =1 0= XX 10 =0
11: xpdnt_091007 JA         5.5 / 22   45.50  00 00 00 00 10 0= 01 00 10 01 XX ==
12: RomiChess P3L           4.0 / 22   32.50  00 00 00 00 =0 10 00 00 00 =1 == XX
----------------------------------------------------------------------------------
132 games: +57 =34 -41

Komodo is the USA champion! Xpdnt and RomiChess demote to the first division.

3 time losses for Daydreamer. ExChess produces strange evaluation scores. Completely won positions are evaluated with a score of -270, and after 3 such scores, EXChess resigns the game. Even a correct matescore in the wb2uci.eng file (MateScore =10000000) doesn't solve the problem. The results are corrected manually though.
Michel
Posts: 2292
Joined: Mon Sep 29, 2008 1:50 am

Re: Standings after second leg

Post by Michel »

Thanks for the tournament!

Do all the engines use 1 CPU?
countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

Re: Standings after second leg

Post by countrychess »

Michel wrote:Thanks for the tournament!

Do all the engines use 1 CPU?
Hello Michel,

My first post of a tournament always contains the list of participants; also the number of processors is announced there; max number = 6. Crafty, Zappa, Arasan and Dorky made use of this advantage.

Regards,
Geert
dchoman
Posts: 171
Joined: Wed Dec 28, 2011 8:44 pm
Location: United States

Re: Standings after second leg

Post by dchoman »

ExChess produces strange evaluation scores. Completely won positions are evaluated with a score of -270, and after 3 such scores, EXChess resigns the game. Even a correct matescore in the wb2uci.eng file (MateScore =10000000) doesn't solve the problem. The results are corrected manually though.
Thanks for testing EXchess and for being careful to correct EXchess' scores in these positions. This is a strange result because EXchess should never resign on its own.... I have not coded this as a possibility, so if a resignation is happening, the GUI must be doing it. Also, such strange scores should not appear, can you send me the PGN of one of those games so I can run a few positions to test?

Thanks!

- Dan
countrychess
Posts: 295
Joined: Fri Sep 16, 2011 7:56 pm
Location: Belgium

Re: Standings after second leg

Post by countrychess »

Hello Dan,

I just sent you a private mail.

Greetings
Geert