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Playing Strength
On this page you can follow the recent playing strength results of REBEL, CHESS TIGER and GANDALF.
March 2001 Man vs Machine rating list
Since a couple of years Chris Carson keeps his Man vs Machine competition rating list, a collection of all Human - Computer events ever played.
After the match REBEL van Wely, REBEL is now third with a TPR of 2697. Chess Tiger 14 still tops the list with a TPR of 2788.
The official site by Tony Hedlund.
The mirror site is located at Kasparov Chess.
Software Hardware TPR REFERENCE Chess Tiger 14 Pentium III 866 Mhz 2788 Chess Tiger in Argentina Deep Junior 6 SMP 8 x Pentium 700 Mhz 2702 Dortmund 2000 Rebel Century 4 AMD 1900 Mhz 2697 Rebel vs Loek van Wely Deep Fritz 6 SMP 4 x Pentium 500 Mhz 2678 Deep Fritz 7 SMP 2 x Pentium 1000 Mhz 2612
Februari 2001 Rebel Century 4 vs GM Loek van Wely
From February 19 till February 22, 2002 REBEL played a 4 game match against GM Loek van Wely who has an elo rating of 2714!
The end-result 2-2, a fantastic result for REBEL.
The time control for the event was tournament time control 40 moves in 2 hours, 20 moves in 1 hour and thereafter Fischer 30 seconds for the rest of the game.
Location of the event: Centre Céramique, Avenue Céramique 50, Maastricht, The Netherlands.
Hard and Software:More...
- Chess Program: Rebel Century 4.0
- Special settings: using anti-GM modus and the 55 million EOC opening repertoire.
- Athlon 1900+ Mhz, 512 Mb.
December 2001 Chess Tiger 14, topping the famous SSDF Computer List
After the miracle in Argentina dominating the human chess world with an incredible TPR of 2788 Chess Tiger 14 also showed its muscles against other chess programs in the SSDF computer competition.
The SSDF is an independent organization founded in the early 80's to measure the playing strength of chess programs by playing thousands and thousands computer-computer games at tournament time control.
Their work is recognized by the chess world as the main reference regarding the strength of chess programs when facing each other.
The brains behind chess programs often consider a no.1 position on the SSDF list as the highest reachable possible. Ed Schröder, author of REBEL (1998), "The various no.1 positions on the SSDF list have given me more pleasure than my 2 world-titles".
THE SSDF RATING LIST 2001-12-27 83119 games played by 229 computers Rating + - Games Won Oppo ------ --- --- ----- --- ---- 1 Chess Tiger 14.0 CB 256MB Athlon 1200 2715 38 -36 378 66% 2600 2 Deep Fritz 256MB Athlon 1200 MHz 2711 37 -35 390 63% 2618 3 Gambit Tiger 2.0 256MB Athlon 1200 2696 40 -39 319 61% 2617 4 Junior 7.0 256MB Athlon 1200 MHz 2681 37 -36 377 59% 2619 5 Shredder 5.32 256MB Athlon 1200 MHz 2664 34 -33 438 57% 2611 6 Deep Fritz 128MB K6-2 450 MHz 2658 26 -25 773 64% 2558 7 Gandalf 4.32h 256MB Athlon 1200 MHz 2647 35 -34 406 54% 2619Note the comfortable position of the new rising star GANDALF, the older 4.32h version already is listed 7th and we expect to make the new GANDALF 5.0 a firm jump in the SSDF competition.
The complete SSDF list can be viewed at the home of the SSDF where you can also download most of the games that have been played.
July 2001 Chess Tiger 14, the miracle of Argentina
Chess Tiger 14 participated in the strong Republica Argentina and won the 11 round tournament convincingly with 9½ points out of 11 (8W 3D 0L) and gained the highest elo rating ever produced by a chess program facing strong human chess players.
Chess Tiger 14 running on a average personal computer 866 Mhz, 256 Mb RAM beat all 4 grandmasters, reached the first place two points ahead of the best human and gained an unbelievable elo performance of 2788 !! earning 2 GM norms.
Official coverage of the event.
IV Magistral República Argentina 2001
1 2 3 4 5 6 7 8 9 0 1 2
1 COMP Chess Tiger 2632 +156 * ½ ½ 1 1 ½ 1 1 1 1 1 1 9.5/11
2 Slipak,Sergio IM 2448 +159 ½ * ½ ½ 1 ½ ½ 1 ½ 1 1 ½ 7.5/11
3 Valerga,Diego IM 2468 +138 ½ ½ * ½ ½ 1 1 ½ ½ 1 ½ 1 7.5/11
4 Ricardi,Pablo GM 2554 -27 0 ½ ½ * ½ ½ 1 1 ½ ½ ½ 1 6.5/11
5 Hoffman,Alejandro GM 2453 +82 0 0 ½ ½ * 1 ½ ½ 1 1 ½ 1 6.5/11
6 Limp,Eduardo IM 2465 -30 ½ ½ 0 ½ 0 * 0 ½ 1 0 1 1 5.0/11
7 Scarella,Enrique FM 2361 +82 0 ½ 0 0 ½ 1 * ½ ½ 0 1 1 5.0/11
8 Panno,Oscar GM 2471 -37 0 0 ½ 0 ½ ½ ½ * ½ 1 1 ½ 5.0/11
9 Andres,Miguel IM 2382 -8 0 ½ ½ ½ 0 0 ½ ½ * ½ ½ ½ 4.0/11
10 Rodriguez,Andrés GM 2500 -173 0 0 0 ½ 0 1 1 0 ½ * 0 ½ 3.5/11
11 Dorin,Mauricio IM 2410 -115 0 0 ½ ½ ½ 0 0 0 ½ 1 * 0 3.0/11
12 Matsuura,Everaldo IM 2467 -177 0 ½ 0 0 0 0 0 ½ ½ ½ 1 * 3.0/11
Download all games
November, 2001 Chess Tiger and Rebel win the Dutch-Open
CHESS TIGER prolongs its title in the Dutch-Open 2001, the most important computer-computer chess event right after the World Championship.
Chess Tiger unlike last year when it led with 1.5 points on the no.2 it now narrowly won on Buchholz points as Chess Tiger had to tolerate the new Rebel Century 4.0 and both programs scored 9 points out of 11, a fantastic score in this strong field.
An improved version of Chess Tiger (version 14.6) was operated by Jeroen Noomen who also was in charge for the book preparation. Chess Tiger played an Athlon 1200 Mhz. Rebel Century 4.0 was operated by good old Jan Louwman the Dutch pioneer of computer chess. Rebel Century 4.0 played on an Athlon 1400 Mhz.
The yearly Dutch-Open was the 21st in succession held in Leiden under the auspices of the dutch CSVN (the Dutch Computer Chess Federation). A detailed report is found on this page, your annotator is Jeroen Noomen.
The final ranking:
Name 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 P BU SB G 1 Chess Tiger 14.6 X 1 1 1 1 0 ½ 1 . 1 ½ 1 1 . . . 9 70 57¾ 11 2 Rebel Century 4 0 X 1 1 ½ 1 1 ½ 1 1 1 . . . . 1 9 66 50¾ 11 3 Fritz 7 0 0 X ½ 1 1 1 1 1 . 1 . . . 1 1 8½ 62 40½ 11 4 Isichess 0 0 ½ X ½ 1 ½ ½ 1 1 . . 1 1 . . 7 70 38¼ 11 5 Diep 0 ½ 0 ½ X ½ ½ ½ . 1 . 1 . 1 1 . 6½ 66½ 31½ 11 6 The King 1 0 0 0 ½ X . 1 1 . 0 1 1 . . 1 6½ 66 33¼ 11 * 7 SpiderChess ½ 0 0 ½ ½ . X . 0 . 1 1 . 1 1 1 6½ 59 24¾ 11 8 Kallisto II-X 0 ½ 0 ½ ½ 0 . X ½ 1 . . 1 1 1 . 6 65½ 27½ 11 9 ANT . 0 0 0 . 0 1 ½ X . . ½ 1 ½ 1 1 5½ 56½ 18¾ 11 10 Crafty 18.13 0 0 . 0 0 . . 0 . X 1 1 ½ 1 1 1 5½ 55½ 15¾ 11 11 Sjeng ½ 0 0 . . 1 0 . . 0 X ½ 0 1 1 1 5 58 17 11 12 Tao 0 . . . 0 0 0 . ½ 0 ½ X 1 1 1 1 5 52½ 13¼ 11 13 Xinix 0 . . 0 . 0 . 0 0 ½ 1 0 X 1 1 1 4½ 53 11¼ 11 14 Morphy XP 4.0 . . . 0 0 . 0 0 ½ 0 0 0 0 X 1 1 2½ 52½ 3¾ 11 15 Gadget . . 0 . 0 . 0 0 0 0 0 0 0 0 X 1 1 55½ 0 11 16 EEC . 0 0 . . 0 0 . 0 0 0 0 0 0 0 X 0 59½ 0 11
* Also known as ChessMaster.
January 2001 Match REBEL-CENTURY 3 versus GM John v/d Wiel 3½-2½
After the matches against Arthur Yussupov and Vishy Anand which were mainly about short time control Rebel in January 2001 had to face a new challenge. This time Rebel had to compete against the world best computer fighter AND in the area the human still is superior that is tournament time control.
Download all the games GM John der der Wiel has played against computers and notice his tremendous score of 24½ - 3½ against the silicon losing only one game in 1990 but that was during a simultaneous play John gave in Brussels so actually John never lost one single serious game against a computer. Outstanding and unrivalled!
But REBEL is a different animal, it has a playing style that is well suited to play humans and has been tuned for many years to compete in the human area, it has an anti-GM algorithm to avoid anti-computer strategies, it has a special time control when playing humans. All of this was responsible for 6 spectacular games, the human leading after the first 3 games with 2-1 but then the season turned and REBEL was without mercy and scored 2½-½ out of the last 3 games making the total of 3½-2½ in favor for REBEL!
GM John van der Wiel about his computer opponent after the match: It avoided 'anti-computer' type of positions more often than other programs so far. Still it made quite a few mistakes (I have to add that I certainly made more!) and in the middle-game treatment there is a lot to be improved. I was impressed by REBEL's endgame technique, though. Looking back at the match I am convinced that a Van der Wiel "in form" should definitely come out victorious.
For games, analysis, the poll result, download games and more details click on the picture or HERE to move to the special page of the match.
More results ....