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Rating + - Games Won Oppo
------ --- --- ----- --- ----
1 Rebel 9.0 Pentium MMX 200 MHz 2533 35 -33 462 69% 2397
2 Hiarcs 6.0 Pentium MMX 200 MHz 2532 36 -34 409 63% 2439
3 Nimzo '98 Pentium MMX 200 MHz 2530 47 -44 245 64% 2426
4 MChess Pro 6.0 Pentium MMX 200 MHz 2519 36 -34 416 63% 2422
5 MChess Pro 7.1 Pentium MMX 200 MHz 2516 35 -34 415 62% 2430
6 Rebel 8.0 Pentium MMX 200 MHz 2511 43 -41 293 66% 2398
7 Shredder 2.0 Pentium MMX 200 MHz 2503 66 -65 116 53% 2485
8 Genius 5.0 Pentium MMX 200 MHz 2498 35 -33 438 65% 2390
9 Rebel 9.0 Pentium 90 MHz 2455 32 -32 468 53% 2435
10 Rebel 8.0 Pentium 90 MHz 2452 21 -21 1113 60% 2377
11 Hiarcs 6.0 Pentium 90 MHz 2451 23 -23 945 58% 2396
12 Hiarcs 5.0 Pentium 90 MHz 2437 41 -39 323 63% 2343
13 Genius 5.0 Pentium 90 MHz 2430 22 -22 981 54% 2403
14 MChess Pro 6.0 Pentium 90 MHz 2422 21 -20 1150 53% 2402
15 Genius 4.0 Pentium 90 MHz 2409 25 -25 809 64% 2310
15 Rebel 6.0 Pentium 90 MHz 2409 31 -30 540 60% 2337
17 Genius 3.0 Pentium 90 MHz 2407 27 -26 719 62% 2320
17 MChess Pro 5.0 Pentium 90 MHz 2407 26 -25 759 62% 2318
19 Rebel 7.0 Pentium 90 MHz 2402 26 -26 740 61% 2325
20 Junior 4.0 Pentium 90 MHz 2398 27 -27 652 48% 2413
21 Hiarcs 4.0 Pentium 90 MHz 2395 25 -25 766 55% 2360
22 Shredder 1.0 Pentium 90 MHz 2391 59 -58 145 53% 2371
23 Chessmaster 5000 Pentium 90 MHz 2387 49 -45 240 67% 2262
24 Nimzo 3.5 Pentium 90 MHz 2385 27 -27 681 50% 2383
25 Nimzo 3.0 Pentium 90 MHz 2382 26 -25 767 58% 2323
26 Hiarcs 3.0 Pentium 90 MHz 2376 30 -30 545 56% 2331
27 R30 v. 2.5 2372 44 -42 283 66% 2253
28 Junior 3.3-3.5 Pentium 90 MHz 2368 32 -32 476 49% 2373
29 Genius 4.0 486/50-66 MHz 2367 24 -24 850 50% 2368
30 Genius 3.0 486/50-66 MHz 2357 24 -23 910 62% 2269
30 MChess Pro 4.0 Pentium 90 MHz 2357 29 -29 578 52% 2341
32 Fritz 3.0 Pentium 90 MHz 2347 22 -22 1033 49% 2356
33 Mephisto Genius 2.0 486/50-66 MHz 2337 23 -23 917 58% 2277
34 Fritz 4.0 Pentium 90 MHz 2335 40 -39 324 60% 2264
35 MChess Pro 5.0 486/50-66 MHz 2331 26 -26 691 50% 2334
35 Rebel 7.0 486/50-66 MHz 2331 26 -26 721 50% 2329
37 WChess 1.06 Pentium 90 MHz 2328 26 -26 738 47% 2350
38 Kallisto 1.98 Pentium 90 MHz 2326 25 -25 797 46% 2357
39 MChess Pro 4.0 486/50-66 MHz 2311 24 -24 846 53% 2287
40 Chess Machine 30-32 MHz Schröder 3.1 2302 32 -30 546 68% 2170
41 WChess 1.03 486/50-66 MHz 2300 27 -27 677 49% 2306
42 Hiarcs 3.0 486/50-66 MHz 2299 24 -24 865 50% 2296
43 Rebel 6.0 486/50-66 MHz 2298 24 -23 887 55% 2264
44 Meph Genius 68 030 33 MHz 2297 47 -46 228 57% 2250
45 Ch.Machine 30 MHz King 2.0 aggr/R30 off 2294 21 -20 1202 64% 2193
46 Chessmaster 4000 486/50-66 MHz 2292 34 -33 462 66% 2171
47 Chess Genius 1.0 486/50-66 MHz 2284 23 -23 931 54% 2256
48 Rebel Decade Pentium 90 MHz 2278 29 -30 563 45% 2315
49 Chess Machine 30 MHz Schröder 3.0 2274 62 -55 168 73% 2102
50 Mephisto Gideon Pro 486/50-66 MHz 2271 35 -34 421 62% 2183
51 MChess Pro 3.5 486/50-66 MHz 2269 23 -22 958 51% 2260
52 MChess Pro 3.12 486/50-66 MHz 2264 36 -34 438 69% 2122
53 Fritz 3.0 486/50-66 MHz 2258 20 -20 1182 46% 2284
54 Mephisto Lyon 68030 36 MHz 2253 28 -27 716 68% 2117
55 Chess Genius 1.0 486/33 MHz 2241 32 -32 463 50% 2241
56 Mephisto Portorose 68030 36 MHz 2237 40 -36 407 77% 2028
57 Mephisto Vancouver 68030 36 MHz 2227 35 -33 471 71% 2070
58 MChess Pro 3.12 486/33 MHz 2226 50 -48 208 60% 2152
59 Berlin Pro 68 020 24 MHz 2225 24 -24 850 58% 2170
60 Kasparov SPARC 20 MHz 2219 24 -24 836 49% 2229
61 Comet32 Pentium 90 MHz 2213 26 -27 793 26% 2393
62 Kallisto 1.82-1.83 486/50-66 MHz 2212 21 -22 1077 41% 2274
63 Mephisto RISC 1 MB ARM 2 14 MHz 2201 21 -20 1174 56% 2158
64 Hiarcs Master 2.0 486/33 MHz 2200 46 -46 229 51% 2191
65 MChess 1.1-1.71 486/33 MHz 2193 44 -40 326 74% 2014
65 Saitek RISC 2500 ARM2 14 MHz 128K 2193 21 -21 1116 55% 2159
65 Chess Machine Schröder 512K ARM2 16MHz 2193 27 -26 703 62% 2109
68 Mephisto Montreux ARM 14 MHz 512K 2187 32 -30 589 73% 2015
69 Chess Machine The King 512K ARM2 16MHz 2174 32 -32 473 55% 2136
70 Mephisto Vancouver 68020 12 MHz 2159 23 -22 1001 66% 2046
71 Mephisto Lyon 68020 12 MHz 2150 19 -18 1442 59% 2087
72 Socrates 3.0 486/33 MHz 2140 49 -50 203 47% 2161
73 Fritz 2.0 486/33 MHz 2130 30 -31 527 45% 2164
74 Mephisto Portorose 68020 12 MHz 2127 26 -24 896 73% 1955
75 M Chess 1.1-1.71 386/25-33 MHz 2126 36 -35 408 65% 2017
76 Fidelity Elite 68030 32 MHz (vers.9) 2122 31 -30 521 60% 2049
77 Mephisto Berlin 68 000 12 MHz 2116 23 -22 966 57% 2064
78 Sapphire II 2110 55 -52 176 61% 2028
79 Mephisto Lyon 68000 12 MHz 2104 21 -21 1110 58% 2048
80 Mephisto Vancouver 68000 12 MHz 2103 22 -21 1062 56% 2062
81 Mephisto MM 4 Turbo Kit 6502 16 MHz 2092 46 -42 292 73% 1918
82 Novag Sapphire H8 10 MHz 2090 22 -22 995 48% 2107
83 Milano Pro SH7000 20 MHz 2085 39 -37 369 68% 1951
84 Fidelity Mach IV 68020 20 MHz 2074 18 -18 1424 50% 2074
85 Mephisto Almeria 68020 12 MHz 2073 42 -40 305 62% 1985
86 Hiarcs Master 1.0 486/33 MHz 2070 48 -48 214 48% 2086
87 Mephisto Portorose 68000 12 MHz 2044 25 -24 827 62% 1960
88 Mephisto Polgar 6502 10 MHz 2042 43 -41 283 59% 1979
89 Fritz 1.0 486/33 MHz 2041 48 -47 215 55% 2008
89 Gandalf 2.1 Pentium 90 MHz 2041 47 -52 232 27% 2213
91 Fidelity Elite 68000 x 2 (vers. 5) 2036 49 -48 209 57% 1987
92 Nimzo 2.2.1 486/33 MHz 2033 46 -47 229 42% 2088
93 Mephisto Roma 68020 14 MHz 2030 27 -26 712 65% 1919
93 Rex Chess 2.3 386/25-33 MHz 2030 65 -62 126 59% 1964
95 Zarkov 3.0 486/25-33 MHz 2029 46 -48 232 39% 2108
96 Mephisto Dallas 68020 14 MHz 2023 35 -32 492 72% 1861
97 Mephisto Almeria 68000 12 MHz 2021 32 -30 534 67% 1898
98 Zarkov 2.5 386/25-33 MHz 2020 56 -53 168 61% 1941
99 Kasparov Brute Force H8 10 MHz 2018 23 -23 906 44% 2057
100 Fritz 1.0 386/25-33 MHz 2007 66 -67 113 46% 2038
101 Novag Diablo 68000 16 MHz 2005 21 -21 1123 41% 2071
102 Fidelity Mach III 68000 16 MHz 1993 14 -14 2410 52% 1980
103 Complete Chess System 486/33 MHz 1984 47 -47 221 47% 2006
104 Kasparov President/GK-2100 H8 10 MHz 1978 29 -29 579 46% 2004
105 Mephisto MM 5 6502 5 MHz 1976 19 -19 1334 48% 1992
106 Mephisto Dallas 68000 12 MHz 1971 21 -20 1177 61% 1894
107 Mephisto Polgar 6502 5 MHz 1970 17 -17 1773 41% 2034
107 Mephisto Roma 68000 12 MHz 1970 18 -18 1519 56% 1927
109 Mephisto Milano 6502 5 MHz 1963 24 -24 860 41% 2028
110 Zarkov 2.6 386/25-33 MHz 1960 64 -62 125 56% 1917
110 Novag Super Expert C 6502 6 MHz Sel 5 1960 18 -18 1545 46% 1989
112 Mephisto Academy 6502 5 MHz 1939 18 -18 1534 44% 1982
113 Chessmaster 3000 386/25-33 MHz 1932 68 -74 103 36% 2031
114 Rex Chess 2.3 386/16-20 MHz 1930 53 -53 174 49% 1936
115 Saitek Leonardo Maestro B 6502 18 MHz 1928 73 -67 105 62% 1842
116 Mephisto Amsterdam 68000 12 MHz 1927 22 -22 1020 58% 1873
117 Novag Super Expert B 6502 6 MHz sel 4 1919 29 -29 564 48% 1935
118 Mephisto Mega IV 6502 4.9 MHz 1917 18 -18 1564 44% 1958
119 Saitek Maestro D 6502 10 MHz 1915 26 -26 736 51% 1909
119 Fidelity Excel Mach IIc 68000 12 MHz 1915 23 -23 955 50% 1911
121 Novag Expert Turbo Kit 6502 16 MHz 1910 67 -63 120 61% 1829
122 Mephisto MM 4 6502 5 MHz 1904 19 -19 1288 51% 1900
123 Fidelity Travel Master H8/330 10 MHz 1897 65 -79 123 22% 2112
124 Kasparov GK-2000 H8 10 MHz 1896 29 -29 593 42% 1952
125 Mephisto Modena 6502 4 MHz 1895 28 -28 635 41% 1963
126 Psion Atari 68000 8 MHz 1882 18 -18 1487 44% 1928
127 CXG Sphinx Galaxy 6502 4 MHz 1881 17 -17 1690 37% 1972
128 Novag Ruby H8 10 MHz 1878 30 -30 545 42% 1934
128 Fidelity Excel Mach IIa 68000 12 MHz 1878 46 -47 226 47% 1898
130 Saitek Turboking II 6502 5 MHz 1868 23 -23 963 37% 1964
131 Conchess Plymate Victoria 6502 5.5 MHz 1867 26 -27 701 40% 1941
132 Fidelity Excel Club 68000 12 MHz 1857 23 -23 931 51% 1849
133 Mephisto Mega IV Brute Force 1847 35 -36 402 38% 1930
134 Novag Super Expert/Forte A 6502 5 MHz 1837 19 -20 1338 38% 1920
135 Fidelity Par Excellence 6502 5 MHz 1835 22 -22 1022 48% 1846
135 Fidelity Avant Garde 6502 5 MHz 1835 20 -20 1196 46% 1866
137 Mephisto Rebell 6502 5 MHz 1824 19 -19 1393 38% 1909
138 Saitek Stratos/Analys B 6502 6 MHz 1820 20 -21 1213 38% 1908
139 Mephisto Super Mondial 6502 4 MHz 1818 19 -19 1355 37% 1911
140 Novag Forte B 6502 5 MHz 1816 24 -24 837 44% 1860
141 Saitek Leonardo Maestro A 6502 6 MHz 1811 30 -30 547 45% 1846
142 Novag Forte A 6502 5 MHz 1809 22 -22 964 48% 1822
143 Conchess Plymate 6502 5.5 MHz 1808 15 -16 2040 40% 1881
144 Saitek Simultano/Corona C 6502 5 MHz 1806 23 -24 969 33% 1932
145 Fidelity Excellence 6502 4 MHz 1801 18 -18 1565 43% 1852
146 Novag Expert 6502 4 MHz 1788 24 -24 843 42% 1847
147 Fidelity Elegance 6502 3.6 MHz 1781 40 -40 303 54% 1752
148 Conchess Plymate 6502 4 MHz 1780 39 -38 333 55% 1748
149 Mephisto MM 2 6502 3.7 MHz 1773 49 -48 208 52% 1756
150 Saitek Turbostar 432 6502 4 MHz 1765 22 -22 1005 45% 1802
151 Fidelity Excellence 6502 3 MHz 1757 22 -23 960 42% 1815
152 Saitek Kasparov Blitz 1734 45 -47 239 37% 1825
152 Novag Super Nova 1734 37 -38 350 40% 1802
154 Novag Super Constellation 6502 4 MHz 1731 18 -18 1626 35% 1840
155 Conchess Glasgow 6502 4 MHz 1720 39 -39 327 50% 1722
156 Chessplayer 2150 Atari/Amiga 1714 58 -63 146 33% 1837
157 The Final Chesscard 6502 5 MHz 1700 57 -64 156 27% 1871
158 Novag Super VIP 1688 53 -58 174 32% 1817
159 Chessmaster 2100 Amiga 68000 1687 65 -76 120 25% 1874
160 Mephisto Europa 1683 50 -52 190 42% 1741
161 Saitek Superstar 36K 6502 2 MHz 1679 23 -24 954 31% 1819
162 Fidelity Elite A/S 6502 3.2 MHz 1678 22 -23 1043 28% 1841
163 Chess Champion 2175 Atari/Amiga 1673 56 -62 157 30% 1822
164 Conchess Glasgow 6502 2 MHz 1667 24 -25 855 34% 1782
165 Novag Quattro 6502 4 MHz 1663 30 -31 560 33% 1790
166 Fidelity Prestige 6502 4 MHz 1661 64 -66 118 44% 1703
167 Chessmaster 2000 Atari 68000 8 MHz 1654 41 -45 312 25% 1841
168 Novag Constellation 6502 3.6 MHz 1648 31 -32 504 41% 1715
169 Novag Constellation Primo 1638 57 -59 149 44% 1683
170 Novag Constellation 6502 2 MHz 1597 32 -33 479 35% 1706
171 CXG Super Enterprise 1563 36 -39 386 28% 1727
Rating : ELO rating
+/- : deviation
Games : number of games played
Won : percentage of games won
Oppo : medium opponent ELO rating
By Thoralf Karlsson, thoralf.karlsson@mailbox.swipnet.se, Chairman of the SSDF
The difference in playing strength between the best chess programs is very small or perhaps nonexisting. Six programmers have their strongest entrants within a range of only 35 points! New versions from other programmers haven't yet been tested on Pentium MMX 200 MHz, and some of them could also reach a rating around 2500 and above.
Ed Schröder has retaken the first place on the present list, but only with one single point! Mark Uniacke's Hiarcs 6 has lost a couple of more points than Rebel 9, compared with the latest list, and that gives it a second place.
The strongest new entrant on this rating list is Chrilly Donninger's Nimzo '98 P200 MMX. After 245 games it has a rating of 2530, only three points behind Rebel 9! The new version of the Nimzo-program seems to be clearly stronger than Nimzo 3.5, probably with 65 to 70 points! We are impressed!
MChess Pro 7.1 P200 MMX is a new version of Marty Hirsch's chess program. It does not appear to play stronger against other chess programs than MCP 6. At the moment the new version has three points less than the former. It's not an easy task to further improve one of the strongest programs.
Whether Stefan Meyer-Kahlen's new program Shredder 2.0 Pentium MMX 200 MHz has been improved compared to Shredder 1.0 or not is difficult to say, but it appears so. The reason for my statement is the fact that we have only played somewhat more than 100 games each with the two versions, and on different hardwares.
At the moment the average rating difference between P90 and P200 MMX is 78 points. With this figure applied to Shredder, the improvement would be around 34 points. As it looks right now, Shredder 2.0 is one of the very strongest chess programs! But more games are needed in order to diminish the statistical uncertainty of it's rating.
In SSDF we are very pleased with the fact that it now is possible to play automatically also with chess programs for Windows! So far it works excellent with Shredder 2 and very good with Nimzo '98. Thank you, Stefan and Chrilly!!
We have seen many emails asking about Fritz 5. Why isn't Fritz 5 included on the list? The reason is that we have had problems with the auto232-version provided by ChessBase. So far only one of us has managed to get it to work properly, but we hope that some of the other testers also will be successful in the near future.
Next list will appear late February. With much luck Fritz 5 could be included on the list. The other programs will have more stable ratings by then.
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