Links

- REBEL-TIGER results -

main whatisnew download strength features shots subscribe reviews FAQ price list phonelistemail list how to order aegon bench database util epd2diagramj. noomen column DIAZ column misc. older topics comp. profile cartoon mode
Two leading chess programmers have joined forces. An unique new development in computer chess. It surely will make both REBEL as CHESS-TIGER much stronger chess players. The expectations are high.

The idea itself (to combine 17 and 16 years individual chess programming ideas) is estimated to have a potential of at least 100-150 elo points progress. On this page you can follow the results of the cooperation.





CHESS-TIGER Hall of Fame

  • 2nd place in the French microcomputer championship in Oct 97.

  • 3rd place in Paderborn (Germany) Feb 98, beating 2 multiprocessor programs (Zugzwang and P.CoNNerS).

  • 1st place in Torsten Schoop's amateur programs tournament (Sep 98).

  • 3rd place in the French microcomputer championship (Sep 98).

  • 1st place in the Spanish microcomputer championship (Sep 98).

  • 1st place in Shep's 1998 championship III

A giant 40 moves in 2 hours computer-computer tournament that took 3 months to finsish won by Chess Tiger version 11.5 running on 2 x PII-400, 128 MB. Games can be downloaded from Shep's place. 

   Name                ELO    Score  Place  TPR

                            

   Rebel 10.0 EOC     2630     5,0    3    2655

   MChess Pro 8.0     2580     3,5    8    2538

   Hiarcs 7.0         2660     6,0    2    2734

   Junior 5.0         2580     5,0    3    2661

   Chessmaster 5555   2590     4,5    6    2617

   Nimzo 98           2655     5,0    3    2652

   Fritz 5.01/5.16    2575     4,0    7    2575

   Chess Tiger 11.5   2645     6,5    1    2777

   Virtual Chess II   2635     2,5   10    2446

   Shredder II        2600     3,0    9    2491



  • 1st place in Shep's BLITZ Championship '99

    • Shep Blitz Championship '99 won by Chess Tiger 11.5, 10 minutes per game on P6-233/K6-233 machines, Tiger scores 10.5/14, 2 points ahead of Hiarcs 7. Tiger is the first program ever to hold both the Standard and the Blitz title at SCCS. Games can be downloaded from Shep's place.


  • 1st place in the "unofficial" French Computer Chess Championship (April 99).

    • Chess Tiger version 11.8 won the tournament with an impressive score of 6 points out of 7. Tiger was using the book of Rebel 10. It was also running on one of the fastest computers: a P2 overclocked to 504MHz.


  • CHESS TIGER enters the SSDF list (September '99).

    • Version 11.8 was given to the Swedish and tested on slow Pentium-90 machines. Chess Tiger clear showed its superior strength as it tops the Pentium-90 list with 43 elo points ahead on the number two Rebel 9.0. Here is a snip from the list: 
    
21 Chess Tiger 11.8 Pentium 90 MHz          2483 54 -52 178  57% 2435

22 Gandalf 3.0 64MB P200 MMX                2468 41 -40 307  59% 2400

23 Kallisto II 64MB P200 MMX                2446 35 -35 403  52% 2431

24 Rebel 9.0 Pentium 90 MHz                 2440 23 -23 890  47% 2461

25 Hiarcs 6.0 Pentium 90 MHz                2437 18 -18 1437 51% 2433

26 Genius 5.0 DOS Pentium 90 MHz            2431 18 -18 1465 48% 2444

27 MChess Pro 6.0 Pentium 90 MHz            2414 17 -17 1669 46% 2441

28 Nimzo 3.5 Pentium 90 MHz                 2397 22 -22 998  46% 2426

29 Junior 4.0 Pentium 90 MHz                2392 22 -22 1012 43% 2443

30 Chessmaster 5000 Pentium 90 MHz          2388 49 -45 240  67% 2262

31 Shredder 1.0 Pentium 90 MHz              2385 59 -58 145  53% 2366

32 R30 v. 2.5                               2371 43 -40 303  66% 2255

33 CometA90 64MB P200 MMX                   2357 37 -39 358  36% 2456

34 WChess 1.06 Pentium 90 MHz               2335 20 -20 1222 39% 2412

35 Fritz 4.0 Pentium 90 MHz                 2334 40 -39 324  60% 2263
    For all the chess fans this news came as a big hammer as it logical to assume that Chess Tiger will top the SSDF list on the fastest hardware category too (which is 450 Mhz) when Chess Tiger is tested on 450 Mhz machines. Since it is the goal of the SSDF to find out about the best computer-computer player we hope to see Chess Tiger 11.8 on the next list in the 450 Mhz category too. Congrats Christophe!


  • Tournament XXI (SHEP CHAMPIONSHIP '99) (September '99).

    • Time control: 40/120. Hardware: two Pentium III-550, 256 MB. Comment by Shep: After 3 months in one of the longest tournaments ever on SCCS, Rebel 10 won the Shep Championship '99 (40/120 on 2xPIII-550, 256 MB) with a score of 7/11. 
    
Rebel 10.0 EOC        7.0 (4 wins)

Chess Tiger 11.8.2    6.5 (4 wins)

Chess Tiger 11.5      6.5 (4 wins)

Fritz 5.32            6.0 (4 wins)

Shredder 3.0          6.0 (4 wins)

Chessmaster 5555      5.5 (3 wins)*

Nimzo 99a             5.5 (2 wins)

Junior 5.0            5.5 (3 wins)

Hiarcs 7.32           4.5 (1 win)

Chessmaster 6000      4.5 (1 win)*

Chess System Tal 2.50 4.0 (0 wins)

Little Goliath 2.05   3.5 (2 wins)
    Although the winner of this super strong tournament is good old Rebel10 Chess Tiger second and third place are remarkable as it in EVERY tournament shows it can easily compete on the highest level. All details on Shep's pages


  • The 99 Summer Tournament (September '99).

    • Pentium 200MMX, 16Mb hash when possible, 60min/game. Didzis Cirulis reports:Somebody says that Chess Tiger (II place) and REBEL (III) will challenge Shredder very soon to see "who is the BOSS in Didzis computer". 
    
1. Shredder 2.0                12.0

2. Chess Tiger 11.8.2          11.5

3. Rebel 10a                   11.0

4. Fritz 5.32                  10.0

   Hiarcs 7.32

   Chess System Tal 2.50+2.03

   Chessmaster 6666

   Chessmaster 6000

5. Genius 6                     9.5

6. Junior 5                     9.0

7. Nimzo 99                     7.0
    All details on the Didzis Cirulis pages



  • Rebel-Tiger during the French computer Chess Championship (September 99)

    TIGER recently tied the first place in the French Computer Chess Championship (September 99) and during that tournament REBEL-TIGER was given the opportunity to play a simultaneous game against GM Joël Lautier (FIDE 2638 Elo) and won its game! GM Joël Lautier played 4 computers simultaneously. The game:
    • 
[Event "Simultaneous game against Lautier"]

[Site "Clichy"]

[Date "1999.10.09"]

[White "Rebel Tiger"]

[Black "GM Joël Lautier"]

[Result "1-0"]



1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Bxc6 Bxc6

8. d4 cxd4 9. cxd4 Bxe4 10. Nc3 Bxf3 11. Qxf3 e6 12. Qxb7 Qc8 13. Qf3 Be7

14. d5 e5 15. Bg5 O-O 16. Ne4 Nxd5 17. Nxd6 Qe6 18. Rad1 Bxg5 19. Rxd5 Bf6

20. b3 Rad8 21. Qd1 Qd7 22. Qd3 Qc6 23. Rd1 Rd7 24. Ne4 Rxd5 25. Qxd5 Qxd5

26. Rxd5 Be7 27. Rxe5 Rc8 28. Kf1 Bb4 29. Rd5 h6 30. Rd4 Rc1+ 31. Ke2 a5

32. Rc4 Ra1 33. Rc2 f5 34. Nd2 Kf7 35. Nf3 Kf6 36. Kd3 Rf1 37. Ke3 Ke6

38. Nd4+ Ke5 39. f4+ Kd5 40. Nxf5 Bc5+ 41. Kd3 Rxf4 42. Nxg7 Rd4+ 

43. Kc3 Rf4 44. Rd2+ Ke5 45. Re2+ Kd5 46. Ne6 Bb4+ 47. Kd3 Rf1 48. Nc7+ Kd6

49. Nb5+ Kc6 50. Nc3 Rc1 51. Rc2 Rh1 52. g3 Rf1 53. Kd4 Bc5+ 54. Ke5 Bd6+

55. Ke6 Ba3 56. Ne4+ Kb6 57. Nd6 Re1+ 58. Kd7 1-0


  • Enrique Irazoqui, former chief editor of CCR reports, on October 17th 1999 in CCC reports: 
    
Results I have so far at 60 moves in 30 minutes:



Tiger - Nimzo 732   15.5 - 8.5

Tiger - Fritz 532    9.5 - 6.5

Tiger - Fritz 6     14.5 - 5.5

Tiger - Junior 5     8.0 - 8.0

Tiger - Hiarcs 732  10.5 - 5.5



Tiger scored 63%, which is roughly 100 Elo above the average of the other 5

programs. That's a huge difference. We'll see how this continues.
    Enrique's games can be downloaded HERE


  • 8th Thüringer computer chess tourmanent (November '99)

    Every year german computer chess enthusiastics meat in Thüringer (Germany) to play a serious tournament during 6-7 days between the strongest chess programs available. This year the time control was set to 3 hours for the whole game. The final result: 
    
     1. Rebel Century         5.0

     2. Rebel Tiger           5.0

     3. Fritz 6               4.5

     4. Junior 6              4.5

     5. Genius 6.5            4.5

     6. Zarkow 5.01           4.0

     7. Shredder 4            4.0

     8. Hiarcs 7,32           3.5

     9. Little Goliath 2000   3.0

    10. WChess 2000           3.0

    11. M-Chess Pro 8         3.0

    12. Chessmaster 6000      3.0

    13. Chess System Tal II   2.5

    14. Nimzo 7.32            2.5

    15. Diep II               2.0

    16. Virtual Chess II      2.0
    The games in PGN format can be downloaded HERE

    With special thanks to Marcus Kästner of ChessBits who provided the games. The 8th Thüringer tournament will be reviewed in the next issue of ChessBits


  • Thoralf Karlsson chairman of the SSDF (November '99) 
    
THE SSDF RATING LIST 1999-11-26   69727 games played by  202 computers

                                        Rating   +     -  Games   Won  Oppo

                                        ------  ---   --- -----   ---  ----

1 Chess Tiger 12.0 DOS 128MB K6-2 450 MHz 2696   44   -40   317   72%  2533

2 Fritz 5.32  128MB K6-2 450 MHz          2671   45   -41   297   72%  2506

3 Nimzo 7.32  128MB K6-2 450 MHz          2663   37   -35   409   69%  2526

4 Nimzo 99  128MB K6-2 450 MHz            2644   52   -48   214   67%  2520

5 Hiarcs 7.32  128MB K6-2 450 MHz         2636   42   -39   320   67%  2509

6 Junior 5.0  128MB K6-2 450 MHz          2619   54   -50   190   65%  2508
    The good result for Chess Tiger 11.8 on P90 made us very curious about what Christophe Therons latest program could achieve on faster hardware. Now we know!

    After 317 tournament games Chess Tiger 12.0 DOS K6-2 450 MHz has taken the first place on the rating list! It's rating is 2696, which is 25 points more than Fritz 5.32 has on the same hardware! Very impressing!

    As can be seen SSDF has played with a DOS-version of Chess Tiger. Will the final commercial Windows-version Rebel-Tiger be slower and therefore weaker? No, surprisingly the opposite seems to be the case! Windows does slow the program down with 2-3%, but since the Windows compiler is better than the DOS-compiler, the net effect is a speed advantage for the Windows version. Our preliminary tests with a beta-version indicates that the Windows version is about 8-10% faster at three minutes per move.


  • Chess Tiger wins the AMD tournament (February 2000)

    Heinz-Josef Schumacher reports:

    Hardware AMD K6-3/400, hash tables max. 64 MB, 2 GB Table Bases, Time control 30 moves in 2 hours. 
       1. Rebel-Tiger    6.0/10

   2. Fritz 6a       5.5/10 

 3-4. Shredder 4.0   5.0/10

      Nimzo 7.32     5.0/10

   5. Hiarcs 7.32    4.5/10 

   6. Junior 6a      4.0/10
    More info on the ChessBits site.


  • Heiko's Monsters of Chess 2000: Tiger wins (February 2000)

    Heiko Mikala reports:

    Heiko's Monsters of Chess 2000 (14 top programs on IBM 300/128, double round robin at game in 60 minutes, pondering enabled)

    Source: Computer Chess Club 
    
Final standings

                      1  2  3  4  5  6  7  8  9  0  1  2  3  4

1   Rebel Tiger       ** 00 0½ ½½ 1½ ½1 ½½ ½1 1½ 11 ½1 1½ 11 ½1  17.0/26

2   Fritz 6           11 ** 11 10 ½½ ½1 ½0 ½1 ½½ ½½ ½1 11 10 0½  16.5/26

3   Junior 6.0        1½ 00 ** 00 11 11 01 01 ½½ 11 1½ 0½ 00 11  14.5/26

4   Hiarcs 7.32       ½½ 01 11 ** ½0 ½½ 01 ½½ 10 ½½ 10 10 10 11  14.5/26

5   WChess 2000 v1.2  0½ ½½ 00 ½1 ** ½1 00 ½0 1½ ½1 10 ½1 11 11  14.5/26

6   Fritz 6 CD1       ½0 ½0 00 ½½ ½0 ** 11 01 ½1 1½ ½1 ½0 11 10  13.5/26

7   Rebel Century 1.0 ½½ ½1 10 10 11 00 ** 01 0½ 00 ½0 ½½ ½1 11  13.0/26

8   Shredder 4.00     ½0 ½0 10 ½½ ½1 10 10 ** 10 ½½ 0½ ½½ 11 10  13.0/26

9   MChess Pro 8      0½ ½½ ½½ 01 0½ ½0 1½ 01 ** 1½ 10 01 00 ½1  12.0/26

10  Nimzo 7.32        00 ½½ 00 ½½ ½0 0½ 11 ½½ 0½ ** 11 1½ 10 10  12.0/26

11  Genius 5          ½0 ½0 0½ 01 01 ½0 ½1 1½ 01 00 ** ½1 ½½ ½½  11.5/26

12  CM6000            0½ 00 1½ 01 ½0 ½1 ½½ ½½ 10 0½ ½0 ** 1½ 00  10.5/26

13  Genius 6.5        00 01 11 01 00 00 ½0 00 11 01 ½½ 0½ ** 01  10.0/26

14  Zarkov 5.0        ½0 1½ 00 00 00 01 00 01 ½0 01 ½½ 11 10 **   9.5/26



(182 games)


    • Last update March 2, 2000