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Rating + - Games Won Oppo
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* 1 Rebel 8.0 Pentium 90 MHz 2482 32 -30 568 70% 2333
2 Genius 3.0 Pentium 90 MHz 2421 28 -27 650 63% 2326
3 Rebel 6.0 Pentium 90 MHz 2417 31 -30 540 60% 2345
4 MChess Pro 5.0 Pentium 90 MHz 2416 27 -26 719 64% 2318
5 Rebel 7.0 Pentium 90 MHz 2412 27 -27 691 61% 2335
6 Genius 4.0 Pentium 90 MHz 2411 27 -26 729 65% 2303
* 7 Chessmaster 5000 Pentium 90 MHz 2396 61 -55 160 68% 2263
8 Hiarcs 4.0 Pentium 90 MHz 2395 29 -29 585 57% 2348
9 Genius 4.0 486/50-66 MHz 2389 30 -30 548 59% 2324
10 Nimzo 3.0 Pentium 90 MHz 2387 29 -28 603 59% 2320
11 Hiarcs 3.0 Pentium 90 MHz 2383 30 -30 545 56% 2338
12 MChess Pro 4.0 Pentium 90 MHz 2365 29 -29 578 52% 2349
13 Genius 3.0 486/50-66 MHz 2361 24 -23 890 63% 2271
14 Fritz 3.0 Pentium 90 MHz 2359 28 -28 613 54% 2329
15 R30 v. 2.5 2356 52 -48 215 68% 2226
16 Rebel 7.0 486/50-66 MHz 2349 30 -29 565 55% 2312
17 MChess Pro 5.0 486/50-66 MHz 2344 31 -30 520 55% 2307
18 Mephisto Genius 2.0 486/50-66 MHz 2342 23 -23 917 58% 2283
19 Kallisto 1.98 Pentium 90 MHz 2337 31 -31 520 49% 2341
20 WChess 1.06 Pentium 90 MHz 2328 29 -29 560 49% 2335
21 MChess Pro 4.0 486/50-66 MHz 2320 24 -24 826 54% 2289
22 Fritz 4.0 Pentium 90 MHz 2313 50 -47 218 63% 2221
23 WChess 1.03 486/50-66 MHz 2305 27 -27 677 49% 2311
24 Chess Machine 30-32 MHz Schroder 3.1 2304 32 -30 546 68% 2173
24 Hiarcs 3.0 486/50-66 MHz 2304 25 -25 786 52% 2288
26 Rebel 6.0 486/50-66 MHz 2303 24 -23 884 55% 2268
27 Meph Genius 68 030 33 MHz 2301 47 -46 228 57% 2254
28 Ch.Machine 30 MHz King 2.0 aggr/R30 off 2296 22 -21 1140 66% 2183
29 Chessmaster 4000 486/50-66 MHz 2293 34 -33 462 66% 2173
30 Chess Genius 1.0 486/50-66 MHz 2289 23 -23 931 54% 2261
31 Rebel Decade Pentium 90 MHz 2281 30 -31 521 44% 2325
32 Chess Machine 30 MHz Schroder 3.0 2275 62 -55 168 73% 2102
33 MChess Pro 3.5 486/50-66 MHz 2274 23 -23 920 53% 2256
34 Mephisto Gideon Pro 486/50-66 MHz 2273 35 -34 421 62% 2185
35 MChess Pro 3.12 486/50-66 MHz 2266 36 -34 438 69% 2123
36 Fritz 3.0 486/50-66 MHz 2259 23 -23 945 52% 2242
37 Mephisto Lyon 68030 36 MHz 2252 29 -27 676 70% 2101
38 Chess Genius 1.0 486/33 MHz 2245 32 -32 463 50% 2245
39 Mephisto Portorose 68030 36 MHz 2237 40 -36 407 77% 2028
40 Mephisto Vancouver 68030 36 MHz 2233 37 -34 451 73% 2058
41 MChess Pro 3.12 486/33 MHz 2228 50 -48 208 60% 2154
42 Berlin Pro 68 020 24 MHz 2220 25 -25 791 59% 2154
43 Kallisto 1.82-1.83 486/50-66 MHz 2219 22 -23 957 44% 2262
44 Comet32 Pentium 90 MHz 2216 38 -40 329 36% 2318
45 Kasparov SPARC 20 MHz 2214 26 -26 741 52% 2200
46 Hiarcs Master 2.0 486/33 MHz 2203 46 -46 229 51% 2193
47 Mephisto RISC 1 MB ARM 2 14 MHz 2202 21 -21 1118 58% 2148
48 Chess Machine Schroder 512K ARM2 16MHz 2194 27 -26 703 62% 2110
48 MChess 1.1-1.71 486/33 MHz 2194 44 -40 326 74% 2015
50 Saitek RISC 2500 ARM2 14 MHz 128K 2193 22 -21 1062 56% 2149
51 Mephisto Montreux ARM 14 MHz 512K 2190 32 -30 578 74% 2008
52 Chess Machine The King 512K ARM2 16MHz 2176 32 -32 473 55% 2138
53 Mephisto Vancouver 68020 12 MHz 2160 23 -22 991 66% 2044
54 Mephisto Lyon 68020 12 MHz 2151 19 -18 1442 59% 2087
55 Socrates 3.0 486/33 MHz 2142 49 -50 203 47% 2163
56 Fritz 2.0 486/33 MHz 2133 30 -31 527 45% 2168
57 Mephisto Portorose 68020 12 MHz 2127 26 -24 896 73% 1956
58 M Chess 1.1-1.71 386/25-33 MHz 2126 36 -35 408 65% 2018
59 Fidelity Elite 68030 32 MHz (vers.9) 2121 40 -37 372 73% 1951
60 Mephisto Berlin 68 000 12 MHz 2120 24 -24 869 58% 2063
61 Mephisto Lyon 68000 12 MHz 2104 22 -21 1068 58% 2047
62 Mephisto Vancouver 68000 12 MHz 2102 22 -22 1005 56% 2060
63 Mephisto MM 4 Turbo Kit 6502 16 MHz 2092 46 -42 292 73% 1918
64 Novag Sapphire H8 10 MHz 2088 23 -23 927 49% 2096
65 Fidelity Mach IV 68020 20 MHz 2074 19 -19 1378 51% 2067
66 Mephisto Almeria 68020 12 MHz 2073 42 -40 305 62% 1986
67 Hiarcs Master 1.0 486/33 MHz 2071 48 -48 214 48% 2088
68 Gandalf 2.1 Pentium 90 MHz 2043 47 -53 228 27% 2216
68 Mephisto Portorose 68000 12 MHz 2043 26 -25 767 63% 1948
70 Mephisto Polgar 6502 10 MHz 2042 43 -41 283 59% 1979
71 Fritz 1.0 486/33 MHz 2041 48 -47 215 55% 2008
72 Fidelity Elite 68000 x 2 (vers. 5) 2036 49 -48 209 57% 1986
73 Nimzo 2.2.1 486/33 MHz 2034 46 -47 229 42% 2089
74 Zarkov 3.0 486/25-33 MHz 2030 46 -48 232 39% 2109
75 Rex Chess 2.3 386/25-33 MHz 2029 65 -62 126 59% 1964
75 Mephisto Roma 68020 14 MHz 2029 27 -26 712 65% 1919
77 Mephisto Dallas 68020 14 MHz 2022 35 -32 492 72% 1860
78 Mephisto Almeria 68000 12 MHz 2020 32 -30 534 67% 1898
78 Zarkov 2.5 386/25-33 MHz 2020 56 -53 168 61% 1941
80 Kasparov Brute Force H8 10 MHz 2019 23 -23 906 44% 2059
81 Fritz 1.0 386/25-33 MHz 2007 66 -67 113 46% 2038
82 Novag Diablo 68000 16 MHz 2006 21 -21 1103 41% 2072
83 Fidelity Mach III 68000 16 MHz 1993 14 -14 2410 52% 1980
84 Complete Chess System 486/33 MHz 1984 47 -47 221 47% 2007
85 Mephisto MM 5 6502 5 MHz 1977 19 -19 1314 48% 1991
86 Kasparov President/GK-2100 H8 10 MHz 1975 29 -30 558 47% 1998
87 Mephisto Dallas 68000 12 MHz 1972 21 -21 1158 61% 1890
88 Mephisto Polgar 6502 5 MHz 1970 17 -17 1733 41% 2034
89 Mephisto Roma 68000 12 MHz 1969 18 -18 1519 56% 1927
90 Mephisto Milano 6502 5 MHz 1965 24 -25 820 42% 2025
91 Novag Super Expert C 6502 6 MHz Sel 5 1961 18 -18 1532 46% 1989
92 Zarkov 2.6 386/25-33 MHz 1960 64 -62 125 56% 1917
93 Mephisto Academy 6502 5 MHz 1937 18 -18 1495 44% 1979
94 Chessmaster 3000 386/25-33 MHz 1932 68 -74 103 36% 2031
95 Rex Chess 2.3 386/16-20 MHz 1930 53 -53 174 49% 1936
96 Saitek Leonardo Maestro B 6502 18 MHz 1928 73 -67 105 62% 1842
97 Mephisto Amsterdam 68000 12 MHz 1926 22 -22 1020 58% 1872
98 Novag Super Expert B 6502 6 MHz sel 4 1919 29 -29 562 48% 1934
99 Mephisto Mega IV 6502 4.9 MHz 1917 18 -18 1544 44% 1956
100 Saitek Maestro D 6502 10 MHz 1915 26 -26 736 51% 1909
101 Fidelity Excel Mach IIc 68000 12 MHz 1914 23 -23 955 50% 1911
102 Novag Expert Turbo Kit 6502 16 MHz 1910 67 -63 120 61% 1829
103 Mephisto MM 4 6502 5 MHz 1903 19 -19 1288 51% 1900
104 Fidelity Travel Master H8/330 10 MHz 1898 65 -79 123 22% 2113
105 Kasparov GK-2000 H8 10 MHz 1896 29 -29 593 42% 1952
105 Mephisto Modena 6502 4 MHz 1896 28 -29 615 41% 1959
107 Psion Atari 68000 8 MHz 1882 18 -18 1487 44% 1928
108 CXG Sphinx Galaxy 6502 4 MHz 1881 17 -18 1670 38% 1971
109 Novag Ruby H8 10 MHz 1878 30 -30 545 42% 1934
109 Fidelity Excel Mach IIa 68000 12 MHz 1878 46 -47 226 47% 1898
111 Saitek Turboking II 6502 5 MHz 1868 23 -23 963 37% 1964
112 Conchess Plymate Victoria 6502 5.5 MHz 1867 26 -27 701 40% 1941
113 Fidelity Excel Club 68000 12 MHz 1857 23 -23 931 51% 1848
114 Mephisto Mega IV Brute Force 1851 36 -37 382 40% 1922
115 Novag Super Expert/Forte A 6502 5 MHz 1836 19 -20 1318 39% 1917
116 Fidelity Par Excellence 6502 5 MHz 1835 22 -22 1022 48% 1846
117 Fidelity Avant Garde 6502 5 MHz 1834 20 -20 1196 46% 1866
118 Mephisto Rebell 6502 5 MHz 1825 19 -19 1373 39% 1906
119 Saitek Stratos/Analys B 6502 6 MHz 1820 20 -21 1213 38% 1908
120 Mephisto Super Mondial 6502 4 MHz 1818 19 -20 1335 37% 1908
121 Novag Forte B 6502 5 MHz 1816 24 -24 837 44% 1860
122 Saitek Leonardo Maestro A 6502 6 MHz 1811 30 -30 547 45% 1846
123 Novag Forte A 6502 5 MHz 1809 22 -22 964 48% 1821
124 Conchess Plymate 6502 5.5 MHz 1808 15 -16 2040 40% 1881
125 Saitek Simultano/Corona C 6502 5 MHz 1806 23 -24 969 33% 1932
126 Fidelity Excellence 6502 4 MHz 1800 18 -18 1565 43% 1852
127 Novag Expert 6502 4 MHz 1788 24 -24 843 42% 1847
128 Fidelity Elegance 6502 3.6 MHz 1780 40 -40 303 54% 1751
129 Conchess Plymate 6502 4 MHz 1779 39 -38 333 55% 1747
130 Mephisto MM 2 6502 3.7 MHz 1773 49 -48 208 52% 1756
131 Saitek Turbostar 432 6502 4 MHz 1764 22 -22 1005 45% 1802
132 Fidelity Excellence 6502 3 MHz 1757 22 -23 960 42% 1815
133 Saitek Kasparov Blitz 1734 45 -47 239 37% 1825
133 Novag Super Nova 1734 37 -38 350 40% 1802
135 Novag Super Constellation 6502 4 MHz 1731 18 -18 1626 35% 1840
136 Conchess Glasgow 6502 4 MHz 1719 39 -39 327 50% 1721
137 Chessplayer 2150 Atari/Amiga 1714 58 -63 146 33% 1837
138 The Final Chesscard 6502 5 MHz 1700 57 -64 156 27% 1871
139 Novag Super VIP 1687 53 -58 174 32% 1816
139 Chessmaster 2100 Amiga 68000 1687 65 -76 120 25% 1874
141 Mephisto Europa 1682 50 -52 190 42% 1740
142 Saitek Superstar 36K 6502 2 MHz 1678 23 -24 954 31% 1818
143 Fidelity Elite A/S 6502 3.2 MHz 1677 23 -24 1023 29% 1836
144 Chess Champion 2175 Atari/Amiga 1672 56 -62 157 30% 1821
145 Conchess Glasgow 6502 2 MHz 1667 24 -25 855 34% 1781
146 Novag Quattro 6502 4 MHz 1662 30 -31 560 33% 1790
147 Fidelity Prestige 6502 4 MHz 1660 64 -66 118 44% 1702
148 Chessmaster 2000 Atari 68000 8 MHz 1654 41 -45 312 25% 1840
149 Novag Constellation 6502 3.6 MHz 1647 31 -32 504 41% 1714
150 Novag Constellation Primo 1637 57 -59 149 44% 1683
151 Novag Constellation 6502 2 MHz 1596 32 -33 479 35% 1706
152 CXG Super Enterprise 1562 36 -39 386 28% 1726
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
Six weeks ago I concluded that no one had succeeded in making his program clearly stronger than what was available nearly two years ago. Now it seems that this statement isn't valid any longer!
On this list the new program Rebel 8.0 Pentium 90 MHz is leading over the second strongest program with as much as 61 points! Since we already have played 568 games, the rating of 2482 will probably not change so much in the future. To raise the playing stength of computer chess so much is a great achievement, and the men to be honoured are the programmer Ed Schröder and Jeroen Noomen, who has made the opening book. Congratulations!
Another new program is Chessmaster 5000 Pentium 90 MHz. The programmer behind CM5000 for Windows 95 is Johan de Koning, who during larger part of 1993 had his program King 2.0 on the first place of SSDFs rating list. After 160 games CM5000 has got a rating of 2396, which is 103 points more than CM4000 got on a 486/50-66 MHz. The larger part of the difference is due to faster hardware, but the program improvement is probably around 30-40 points.
The fact that more and more chess programs are written for Windows 3.1 or Windows 95 is a problem for us in SSDF. With DOS-programs we can play automatically and get more than 500 games in a month, but this isn't possible for Windows-programs. Manual play is very time-consuming, and together with other practical problems this means that we cannot expect to get much more than 200 games for programs like Fritz 4.0 and CM5000. For these programs the margin of error will then be about 50-60 points instead of 25-30 for the DOS-programs.
The best solution would of course be if someone (read Donninger) could make AUTO232 work also with Windows-programs. There has been rumours about this but nothing has been confirmed. Another alternative is that the programmer makes a special DOS-version for SSDF. Richard Lang was kind enough to provide a DOS-version of Genius 4.0, which has enabled us to play more than 700 games on P90. Comparisons between the DOS- and the Windows version showed that the speed difference was less than 5% which could give 3-4 more ratingpoints to the DOS-version. In view of the margin of error mentioned above, we considered this difference to be insignificant.
To test a version which differs slightly from the commercial version is not ideal, but under the present circumstances a practical compromise. We informed our Swedish readers about it in our magazine PLY. After a recent discussion in rgcc we realize that it would have been better to inform our international readers at the same time.
At the moment there is another discussion on Internet concerning SSDF's rating list. Does some opening books give misleadingly high ratings? Should repeat games be disqualified? We are following the discussion with much attention, but need some more time to decide if there is any reason to make changes in our testwork.
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