Author: Thoralf Karlsson
Date: 12:56:22 12/28/00
THE SSDF RATING LIST 2000-12-28 76240 games played by 211 computers
Rating + - Games Won Oppo
------ --- --- ----- --- ----
1 Fritz 6.0 128MB K6-2 450 MHz 2629 25 -24 845 67% 2506
2 Junior 6.0 128MB K6-2 450 MHz 2589 23 -22 1027 65% 2483
3 Chess Tiger 12.0 DOS 128MB K6-2 450 MHz 2572 28 -27 651 62% 2483
4 Fritz 5.32 128MB K6-2 450 MHz 2548 28 -27 658 60% 2475
5 Nimzo 7.32 128MB K6-2 450 MHz 2547 25 -25 791 60% 2476
6 Hiarcs 7.01 128MB K6-2 450 MHz 2541 42 -42 274 53% 2522
7 Gandalf 4.32f 128MB K6-2 450 MHz 2530 29 -29 584 52% 2519
8 Hiarcs 7.32 128MB K6-2 450 MHz 2529 29 -28 597 59% 2466
9 Junior 5.0 128MB K6-2 450 MHz 2528 26 -25 746 57% 2476
10 SOS 128MB K6-2 450 MHz 2525 23 -23 918 53% 2502
11 Rebel Century 3.0 128MB K6-2 450 MHz 2520 35 -34 410 52% 2502
12 Goliath Light 128MB K6-2 450 MHz 2496 30 -30 546 46% 2528
13 Nimzo 99 128MB K6-2 450 MHz 2490 27 -26 691 52% 2478
14 Crafty 17.07/CB 128MB K6-2 450 MHz 2488 24 -24 814 49% 2499
15 Fritz 5.32 64MB P200 MMX 2477 19 -19 1338 56% 2438
16 Hiarcs 7.32 64MB P200 MMX 2473 24 -24 844 59% 2407
16 Chessmaster 6000 64MB P200 MMX 2473 61 -53 184 76% 2277
18 MChess Pro 8.0 128MB K6-2 450 MHz 2471 32 -32 474 45% 2507
19 Fritz 5.0 PB29% 67MB P200 MMX 2459 23 -22 1005 66% 2342
20 Hiarcs 7.0 64MB P200 MMX 2458 21 -21 1112 55% 2419
21 Nimzo 99 64MB P200 MMX 2445 23 -23 885 51% 2438
22 Junior 5.0 64MB P200 MMX 2434 21 -21 1141 50% 2436
23 Nimzo 98 58MB P200 MMX 2423 21 -21 1084 57% 2373
24 Rebel 9.0 47MB P200 MMX 2420 24 -23 900 61% 2341
25 Hiarcs 6.0 49MB P200 MMX 2417 24 -24 829 56% 2373
26 MChess Pro 6.0 41MB P200 MMX 2409 25 -25 776 54% 2382
27 Rebel 8.0 51MB P200 MMX 2406 23 -23 887 50% 2406
28 Shredder 2.0 58MB P200 MMX 2398 21 -21 1114 48% 2414
29 MChess Pro 7.1 46MB P200 MMX 2393 22 -22 1042 53% 2370
30 Genius 5.0 DOS 46MB P200 MMX 2390 21 -21 1137 51% 2383
31 MChess Pro 8.0 64MB P200 MMX 2389 27 -27 681 53% 2366
32 Chess Tiger 11.8 Pentium 90 MHz 2382 43 -43 261 50% 2384
33 Gandalf 3.0 64MB P200 MMX 2364 41 -40 307 59% 2296
34 Kallisto II 64MB P200 MMX 2342 35 -35 403 52% 2327
35 Rebel 9.0 Pentium 90 MHz 2334 23 -23 890 47% 2355
36 Hiarcs 6.0 Pentium 90 MHz 2332 18 -18 1437 51% 2328
37 Genius 5.0 DOS Pentium 90 MHz 2328 18 -18 1558 47% 2347
38 Nimzo 3.5 Pentium 90 MHz 2293 22 -22 998 46% 2322
39 Junior 4.0 Pentium 90 MHz 2287 22 -22 1035 42% 2341
40 Shredder 1.0 Pentium 90 MHz 2282 59 -58 145 53% 2262
41 R30 v. 2.5 2274 41 -38 343 69% 2135
42 CometA90 64MB P200 MMX 2251 37 -39 358 36% 2351
43 WChess 1.06 Pentium 90 MHz 2230 20 -20 1222 39% 2308
44 Meph Genius 68 030 33 MHz 2198 45 -44 248 55% 2161
45 Berlin Pro 68 020 24 MHz 2125 24 -24 850 58% 2071
45 Meph RISC 2 1 MB 2125 62 -66 125 39% 2205
47 Mephisto Montreux ARM 14 MHz 512K 2099 29 -28 689 73% 1930
48 Atlanta SH7000 20 MHz 2090 29 -28 647 69% 1949
49 Sapphire II 2012 35 -33 444 63% 1916
50 Milano Pro SH7000 20 MHz 1974 33 -32 469 61% 1895
11 Rebel Century 3.0 128MB K6-2 450, 2520
Fritz6 K6-450 5-5 Junior6 K6450 18.5-22.5 Frit532 K6450 10-7
Nimz732 K6450 19-21 Hiarcs7 K6450 2-6 Junior5 K6450 20-23
SOS K6-2 450 12-13 Goliath K6450 6.5-4.5 Nimzo99 K6450 24-20
Craf17.07 K62 25.5-16.5 Fritz532 P200 22-24 Junior5 P200X 21.5-14.5
MCP 6 P200MMX 15.5-11.5 Shred 2 P200X 13.5-6.5
Although the SSDF rating list contains more
than 76.000 tournament games, you can not
find ratings for all chess programs in it. With
the ambition to reduce the statistical error
by playing hundreds of games with each new
program, there is no possibility to include
all of the amateur Winboard-engines which now
are available.
Neither has it been possible to provide ratings
for all of the "strongest" commercially available
chess programs. This is partly due to limited
test-resources, but also due to legal threats
and the lack of the possibility to play games
automatically.
For the first time in three years we now
include a new program written by Ed Schröder.
It's Rebel Century 3.0 K6-2 450 MHz, which after
410 games has received a rating of 2520. Rebel 9
has one hundred points less on a P200 MMX. The
engine in itself seems to be somewhat stronger
than Rebel 9 against other chess programs.
Ed Schröder has noticed that errors affecting
the play occurs when the DOS-version of auto232
is used. He doesn't know how big the damage is,
only that there is loss of strength. In a log-
file you can see if there has been something
wrong with a certain game.
One of the testers has reported such an incident,
but in this particular game Century 3.0 won. The
most obvious temporary engine-damages which I
personally have seen has been in the latest
ChessBase-programs, where the nodecount in long
series of games sometimes has gone down to only a
few percent of the normal, and then stayed there
during the following games.
If we become aware of games where the play is
obviously weakened, such games are of course dis-
carded. Still, the above mentioned phenomenon is
something to keep in mind when ratings are inter-
preted.
Since the latest list Gandalf 4.32f K6-2 450 MHz
has lost 15 points, and now has 2530. Hiarcs 7.01
K6-2 450 MHz has gained 6 points.
A couple of days ago we received copies of
Nimzo 8.0 and Deep Fritz, and these programs will
now be tested on (a single!) K6-2 450 MHz. As soon
as the promised upgrade to Chess Tiger 13.0 comes,
it will also be included on the list.
Next rating list will appear in February or
March.
Thoralf Karlsson
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