Author: Thoralf Karlsson
Date: 04:51:37 12/31/04
THE SSDF RATING LIST 2004-12-31 100049 games played by 267 computers Rating + - Games Won Oppo ------ --- --- ----- --- ---- 1 Shredder 8.0 CB 256MB Athlon 1200 MHz 2805 23 -22 1075 71% 2645 2 Shredder 7.04 UCI 256MB Athlon 1200 MHz 2804 23 -22 1041 70% 2653 3 Deep Fritz 8.0 256MB Athlon 1200 MHz 2791 25 -24 896 72% 2628 4 Junior 8.0 256MB Athlon 1200 MHz 2772 25 -24 832 66% 2656 5 Shredder 7.0 256MB Athlon 1200 MHz 2768 26 -25 841 69% 2631 6 Deep Fritz 7.0 256MB Athlon 1200 MHz 2767 24 -23 938 65% 2657 7 Fritz 8.0 256MB Athlon 1200 MHz 2754 22 -21 1083 64% 2650 8 Gandalf 6.0 256MB Athlon 1200 MHz 2749 49 -46 225 63% 2658 8 Deep Junior 8.0 256MB Athlon 1200 MHz 2749 32 -31 525 64% 2648 10 Fritz 7.0 256MB Athlon 1200 MHz 2744 29 -28 634 63% 2653 11 Hiarcs 9.0 256MB Athlon 1200 MHz 2739 22 -21 1068 62% 2656 12 Shredder 6.0 Pad UCI 256MB Athlon 1200 2724 22 -22 1033 62% 2641 13 Chess Tiger 2004 256MB Athlon 1200 MHz 2723 27 -26 710 59% 2657 14 Shredder 6.0 256MB Athlon 1200 MHz 2722 31 -30 547 62% 2633 15 Chess Tiger 14.0 CB 256MB Athlon 1200 2721 29 -28 597 60% 2651 16 Chess Tiger 15.0 256MB Athlon 1200 MHz 2719 22 -21 1064 58% 2664 17 Deep Fritz 256MB Athlon 1200 MHz 2718 30 -29 571 61% 2642 18 Chessmaster 9000 256MB Athlon 1200 MHz 2717 36 -36 376 55% 2679 19 Gambit Tiger 2.0 256MB Athlon 1200 2715 29 -29 583 58% 2656 20 Junior 7.0 256MB Athlon 1200 MHz 2702 23 -23 921 53% 2679 21 Shredder 7.0 UCI 128MB K6-2 450 MHz 2699 34 -34 429 54% 2669 22 Rebel 12.0 256MB Athlon 1200 MHz 2684 32 -32 484 57% 2633 23 Hiarcs 8.0 256MB Athlon 1200 MHz 2683 22 -22 996 53% 2662 24 Rebel Century 4.0 256MB Athlon 1200 MHz 2675 29 -29 590 60% 2605 24 Ruffian 1.0.1 256MB Athlon 1200 MHz 2675 27 -27 684 52% 2657 26 Deep Sjeng 1.5a 256MB Athlon 1200 MH 2673 31 -31 493 52% 2662 27 Chess Tiger 15.0 128MB K6-2 450 MHz 2671 32 -32 473 51% 2661 28 Shredder 5.32 256MB Athlon 1200 MHz 2662 26 -26 739 50% 2660 28 Gandalf 4.32h 256MB Athlon 1200 MHz 2662 28 -28 604 52% 2651 30 Deep Fritz 7.0 128MB K6-2 450 MHz 2656 29 -29 580 51% 2650 31 Gandalf 5.0 256MB Athlon 1200 MHz 2651 39 -39 322 45% 2685 32 Gandalf 5.1 256MB Athlon 1200 MHz 2639 25 -25 758 55% 2605 33 Ruffian 2.0.0 256MB Athlon 1200 MHz 2621 54 -55 165 48% 2636 34 Crafty 18.12/CB 256MB Athlon 1200 MHz 2617 27 -27 687 50% 2617 35 Gromit 3.11.9 256MB Athlon 1200 MHz 2610 44 -46 246 43% 2662 36 Yace Paderborn 256MB Athlon 1200 MHz 2606 35 -35 389 48% 2620 37 Nimzo 8.0 128MB K6-2 450 MHz 2556 20 -20 1162 47% 2578 38 Crafty 19.17 256MB Athlon 1200 MHz 2523 43 -47 264 31% 2666 39 SOS 128MB K6-2 450 MHz 2520 15 -16 2056 38% 2609 40 Goliath Light 128MB K6-2 450 MHz 2513 19 -19 1438 33% 2640 41 MChess Pro 8.0 128MB K6-2 450 MHz 2480 25 -26 753 40% 2551 42 Genius 6.5 128MB K6-2 450 MHz 2477 29 -29 565 48% 2490 43 R30 v. 2.5 2274 41 -38 343 69% 2136 44 Mephisto London 68 030 36 MHz 2202 41 -41 292 50% 2200 45 Meph Genius 68 030 33 MHz 2196 43 -42 267 55% 2158 46 Chess Tiger 14.9 Palm m515 16MB 42MHz 2103 69 -74 100 39% 2182 47 Atlanta SH7000 20 MHz 2085 28 -27 687 67% 1958 48 Star Sapphire 2026 41 -39 310 58% 1970 49 Sapphire II 2008 33 -32 484 62% 1923 50 Chess Genius 1.5 Palm m515 16MB 42MHz 1871 69 -78 100 32% 2003 8 Gandalf 6.0 256MB Athlon 1200 MHz, 2749 Shr7.04 A1200 12.5-16.5 Hiarcs9 A1200 25.5-16.5 CT 15.0 A1200 8.5-7.5 Ruffia1 A1200 23-16 DpFritz7 K6-2 22.5-13.5 Shre532 K6450 5.5-0.5 SOS K6-2 450 12-5 Craf18.12 K62 31.5-8.5 13 Chess Tiger 2004 256MB Athlon 1200 MHz, 2723 Shredd8 A1200 14.5-26.5 Shr7.04 A1200 19-23 DpFrit8 A1200 13.5-27.5 Junior8 A1200 22-20 Fritz 8 A1200 21.5-18.5 Hiarcs9 A1200 20-20 CT 15.0 A1200 20-20 Ruffia1 A1200 21.5-18.5 Gan432h A1200 24.5-21.5 DpFritz7 K6-2 26.5-19.5 Fritz6 K6-450 22.5-5.5 Shre532 K6450 31-9 Junior6 K6450 24.5-10.5 Craf19. A1200 29-11 SOS K6-2 450 30-12 Goliath K6450 38-6 Fritz532 P200 31-13 Craf18.12 K62 11.5-7.5 38 Crafty 19.17 256MB Athlon 1200 MHz, 2523 DpJuni8 A1200 9.5-30.5 CT 2004 A1200 11-29 Rebel12 A1200 13.5-28.5 Ruffia1 A1200 15-25 Gandal5 A1200 11.5-28.5 Shre532 K6450 10.5-29.5 Fritz532 P200 10-12 More than eight months has now passed since the latest SSDF rating list appeared on April 22. I guess that at least some of those interested in rating figures for chess programs have suspected that our project, which started in 1984, finally had gone to rest. Well, not quite yet! The enthusiasm isn't as high as before, but we intend to continue for some more time. But it might be that the annual number of tested programs and published lists will be lower than before. And it's an open question whether we will invest in faster hardware or not during the nearest future. What news concerning computer chess ratings can we provide? We have tested new versions of three well known chess programs. The first one has a clearly lower rating than it's predecessor, the other one is equally good and the third has a significantly higher rating. Robert Hyatts Crafty 19.17 on Athlon 1200 MHz has been tested under Arena 1.0 with his own opening book book.bin. After 264 games it's rating is 2523. Compared to Crafty 18.12 with the ChessBase interface and the opening book general.ctg, version 19.17 has 94 points less. Chess Tiger 2004 Athlon 1200 MHz is Christophe Thérons latest program, and it's present rating is 2723. That is four points more than the predecessor Chess Tiger 15.0 has, and two points more than the rating of Chess Tiger 14.0. The good news on this rating list is Steen Suurballes Gandalf 6.0 Athlon 1200 MHz, which after 225 tournament games has a rating of 2749! That is 87 points more than his strongest version so far, Gandalf 4.32h, with 2662! Compared to the most recent version, Gandalf 5.1, the improvement is as high as 110 points. Stefan Meyer-Kahlen is still having the first two places on the SSDF rating list, but now with a single point difference between Shredder 8.0 and 7.04. Shredder 8.0 A1200 has lost 13 points compared to the latest list. Junior 8.0 A1200 has ten points less and Hiarcs 9.0 A1200 eight fewer points. When we have played some more games with Gandalf 6.0, we will switch to Junior 9.0. Happy New Year! Thoralf Karlsson
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