Shredder tops the computer rankings – again!

THE SSDF RATING LIST

Here is the complete rating list for the top fifty programs. Note that most of the leading programs, like Fritz, Shredder, Chess Tiger, Junior and Hiarcs, are distributed by ChessBase and can be purchased in our Online Shop.

   THE SSDF RATING LIST 2003-05-26   92505 games played by  253 computers
                                           Rating   +     -  Games   Won  Oppo
                                           ------  ---   --- -----   ---  ----
   1 Shredder 7.0  256MB Athlon 1200 MHz     2768   27   -25   801   70%  2620
   2 Fritz 8.0  256MB Athlon 1200 MHz        2760   27   -26   781   69%  2616
   3 Deep Fritz 7.0  256MB Athlon 1200 MHz   2759   28   -27   694   69%  2621
   4 Fritz 7.0 256MB Athlon 1200 MHz         2740   30   -29   574   64%  2635
   5 Chess Tiger 15.0  256MB Athlon 1200 MHz 2724   26   -26   744   63%  2630
   6 Shredder 6.0 Pad UCI 256MB Athlon 1200  2723   23   -22   991   63%  2632
   7 Shredder 6.0  256MB Athlon 1200 MHz     2719   31   -30   547   62%  2631
   8 Shredder 7.0 UCI 128MB K6-2 450 MHz     2715   46   -43   258   63%  2622
   8 Chess Tiger 14.0 CB 256MB Athlon 1200   2715   30   -30   557   61%  2636
  10 Deep Fritz 256MB Athlon 1200 MHz        2713   30   -29   571   61%  2638
  11 Gambit Tiger 2.0  256MB Athlon 1200     2710   29   -29   583   58%  2651
  12 Junior 7.0  256MB  Athlon 1200 MHz      2693   26   -26   719   56%  2653
  13 Hiarcs 8.0  256MB Athlon 1200 MHz       2680   23   -23   908   54%  2650
  14 Rebel Century 4.0 256MB Athlon 1200 MHz 2673   29   -29   590   60%  2603
  15 Ruffian 1.0.1  256MB Athlon 1200 MHz    2670   32   -32   483   55%  2632
  16 Chess Tiger 15.0  128MB K6-2 450 MHz    2666   36   -35   391   54%  2639
  17 Shredder 5.32  256MB Athlon 1200 MHz    2658   26   -26   699   51%  2649
  18 Gandalf 4.32h  256MB Athlon 1200 MHz    2657   31   -31   514   53%  2633
  19 Deep Fritz 7.0  128MB K6-2 450 MHz      2652   40   -40   306   54%  2625
  20 Deep Fritz  128MB K6-2 450 MHz          2647   22   -21  1071   58%  2587
  21 Gandalf 5.0  256MB Athlon 1200 MHz      2640   49   -50   202   46%  2672
  22 Gambit Tiger 2.0  128MB K6-2 450 MHz    2639   28   -27   674   64%  2537
  23 Gandalf 5.1  256MB Athlon 1200 MHz      2636   25   -25   758   55%  2603
  23 Junior 7.0  128MB K6-2 450 MHz          2636   23   -22   965   61%  2556
  25 Fritz 7.0  128MB K6-2 450 MHz           2630   38   -37   348   53%  2607
  26 Chess Tiger 14.0 CB 128MB K6-2 450 MHz  2628   26   -25   753   59%  2565
  27 Shredder 6.0 UCI 128MB K6-2 450 MHz     2615   43   -43   264   52%  2605
  28 Crafty 18.12/CB 256MB  Athlon 1200 MHz  2613   27   -27   647   52%  2602
  29 Gromit 3.11.9  256MB Athlon 1200 MHz    2610   44   -46   246   43%  2662
  30 Shredder 5.32  128MB K6-2 450 MHz       2605   25   -25   759   54%  2578
  31 Yace Paderborn  256MB Athlon 1200 MHz   2603   35   -35   389   48%  2617
  32 Hiarcs 8.0  128MB K6-2 450 MHz          2585   33   -34   440   42%  2645
  33 Rebel Century 4.0  128MB K6-2 450 MHz   2567   52   -53   178   46%  2593
  34 Nimzo 8.0  128MB K6-2 450 MHz           2552   22   -22  1028   49%  2559
  35 Gandalf 5.0  128MB K6-2 450 MHz         2536   73   -68   102   60%  2462
  36 Gandalf 4.32h  128MB K6-2 450 MHz       2521   34   -34   418   52%  2506
  37 SOS  128MB  K6-2 450 MHz                2518   17   -17  1687   42%  2577
  38 Chessmaster 8000  128MB K6-2 450 MHz    2515   44   -45   251   45%  2548
  38 Goliath Light  128MB K6-2 450 MHz       2515   21   -22  1107   38%  2604
  40 Crafty 17.07/CB 128MB K6-2 450 MHz      2492   22   -22   978   45%  2531
  41 Crafty 18.12/CB 128MB K6-2 450 MHz      2479   31   -32   516   34%  2594
  42 MChess Pro 8.0  128MB K6-2 450 MHz      2478   25   -26   753   40%  2549
  43 Genius 6.5  128MB  K6-2 450 MHz         2475   29   -29   565   48%  2488
  44 R30 v. 2.5                              2274   41   -38   343   69%  2136
  45 Mephisto London 68 030 36 MHz           2216   71   -63   122   68%  2080
  46 Meph Genius 68 030 33 MHz               2195   43   -42   267   55%  2157
  47 Chess Tiger 14.9 Palm m515 16MB 42MHz   2101   69   -74   100   39%  2180
  48 Atlanta    SH7000 20 MHz                2087   29   -27   667   68%  1956
  49 Sapphire II                             2009   34   -32   464   63%  1918
  50 Chess Genius 1.5 Palm m515 16MB 42MHz   1870   69   -78   100   32%  2002

The full list is available at the SSDF site

Individual results

2 Fritz 8.0  256MB Athlon 1200 MHz, 2760
Shredd7 A1200   18.5-21.5  DpFrit7 A1200     20-20    CT 15.0 A1200   23.5-16.5
Shred6P A1200     25-15    Junior7 A1200     24-18    Hiarcs8 A1200   27.5-14.5
Ruffian A1200   26.5-13.5  CT15.0 K6450      29-17    Fritz6 K6-450   45.5-13.5
Shre532 K6450     41-15    Ch.Ti12 K6450    7.5-6.5   Junior6 K6450     28-12
Nimz732 K6450   35.5-16.5  Hiar732 K6450   45.5-7.5   SOS  K6-2 450     34-9
Goliath K6450   37.5-7.5   Fritz532 P200   36.5-7.5   Craf18.12 K62   37.5-7.5
 
31 Yace Paderborn  256MB Athlon 1200 MHz, 2603
Shred6P A1200     14-26    Hiarcs8 A1200   14.5-29.5  Ruffian A1200   13.5-28.5
DpFritz7 K6-2     15-27    Gromit3 A1200   22.5-17.5  Shre532 K6450    9.5-10.5
Junior6 K6450     21-19    Frit532 K6450   25.5-14.5  Nimz732 K6450   27.5-12.5
SOS  K6-2 450     24-17    

Thoralf Karlsson reports:

One of the two new entrants on this rating list is Yace Paderborn Athlon 1200 MHz. After 389 tournament games the program has a rating of 2603. Yace Paderborn is an amateur program written by Dieter Bürssner and Carlos Pesce.

We have now played 781 games with Frans Morschs latest program. Fritz 8.0 (ver 8.0.0.23) on Athlon 1200 MHz has 2760, one point ahead of it's predecessor.

Compared to the latest list from February 13, Shredder 7.0 UCI K6-2 450 MHz has gained 18 points. The other changes are insignificant.

Shredder 7.0 A1200 continues to keep the first place of the list, with eight points ahead of Fritz 8.0. With such small rating differences, it's of course impossible to claim that one program is better than the other one, against chess programs. What we can say is that the "true" rating of Shredder 7.0 with 95% probability lies within the range 2795 - 2743, and that the same range for Fritz 8.0 is between 2787 and 2734.

A few days ago we started to play with Shredder 7.04 UCI A1200. When Junior 8.0 arrives, it will also be tested.

Next rating list will probably appear in July or August.

Here are some SSDF statistics:

Fritz has dominated the SSDF list since 1998. Since then 30 lists have been published, and Fritz was in first place in 20 of these lists. It's closest rivals were Shredder (three times first place) and Tiger (twice). Here are the statistics on how many times each program has been first: