Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: SSDF adjust again?

Author: Amir Ban

Date: 18:13:22 10/28/00

Go up one level in this thread


On October 28, 2000 at 20:13:03, Joshua Lee wrote:

>The only problem is that the new SSDF list has been changed by -100points the
>results were kept the same for the games against humans however on Chris
>Carson's webpage he has the results against humans as being 100points higher
>than what is on the SSDF List Accident i guess.
>
>105. Mephisto Lyon 68020 12 MHz +67 (2117 12) 2050   19   -18  1442   59%  1986
>108. Mephisto Portorose 68020 12 MHz +54 (2081 10) 2027 26 -24  896   73%  1856
>117. Fidelity Mach IV 68020 20 MHz +103 (2077 19) 1974  18  -18 1495  48%  1988
>115. Mephisto MM 4 Turbo Kit 6502 MHz +148 (2022 9) 1874 19  -19 1374 47%  1897
>136. Fidelity Mach III 68000 16 MHz +74 (1967 25) 1893 14  -14  2410   52%  1880
>146. Mephisto Academy 6502 5 MHz +118 (1957 21) 1839 18 -18  1555   44%  1884
>119. Mephisto Almeria 68020 12 Mhz  +18 (1930 26) 1912 28  -28  634   60%  1838
>161. CXG Sphinx Galaxy 6502 4 MHz +119 (1899 28) 1780 17 -17  1713  37%  1874
>144. Novag Super Forte C 6502 6 MHz  +36 (1896 15) 1860 18  -18 1555 46%  1891
>160. Psion Atari 68000 8 MHz    +65 (1847 5) 1782 18 -18  1487   44%  1828
>175. Saitek  Maestro A 6502 6 MHz +85 (1796 9) 1711 30 -30   547   45%  1746
>174. Novag Forte B 6502 5 MHz  +45 (1761 28) 1716   24   -24   837   44%  1760
>    +77.666666666666666666666666666667 Average   207Games
>
>127. Mephisto Roma 68020 14 MHz (1879 9) 1930  27 -26 712 65% 1819     -51
>135. Novag Diablo 68000 16 MHz  (1875 9) 1905  21 -21  1123 41% 1971   -30
>151. Novag Super Expert B 6502 6 MHz (1792 9) 1819  29 -29 564 48% 1835  -27
>152. Mephiso Mega IV 6502 5 MHz  (1766 28) 1816  17 -18 1584 44% 1860    -50
>140. Mephisto Dallas 68000 12 MHz(1766 15) 1871  21 -20 1177 61% 1794    -105
>165. ConchessPlymateVictoria 6502 5.5 MHz(1741 7) 1767 26 -27 701 40% 1841   -26
>166. Fidelity Excel Club 68000 12 MHz (1674 6)  1758 23 -23 931 51%  1749   -84
>139. Mephisto MM 5 6502 5 MHz (1657 6)  1874  19 -19 1374 47% 1897      -217
>153. Saitek Maestro D 6502 10 MHz (1622 18) 1816   26   -26 736 51% 1809  -194
>168. Novag Super Forte A 6502 5 MHz (1618 9) 1738  19 -19 1398 37% 1830   -120
>185. Fidelity Excellence 6502 3 MHz (1478 5) 1657  22 -23 960 42% 1715 -179
>188. NovagSuperConstellation 6502 4 MHz (1455 9) 1631 18 -18 1626 35% 1740 -176
>
>    -104.91666666666666666666666666667 Average   130Games
>337 games total this would be  +39 -38 if it were 1 Program
>
>One other example is Fritz and Junior.
>1 Fritz 6.0  128MB K6-2 450 MHz           2630   26   -25   775   67%  2505
>2 Junior 6.0  128MB K6-2 450 MHz          2592   23   -23   971   65%  2481
>
>First off Fritz attained 2393 at a Tournament in Jakarta Feb but 2457 overall on
>a P3-500 so is that -237 or -173?? for those interested fritz took around 4hrs
>to find a good move by IM Situru e4-e3.
>
>As far as Junior goes it is getting a rating on a K6-2450 that it took a
>700Mhz*8 to achieve  ????????? hello if that doesn't speak the obvious i don't
>know what will. 3.1* for 4 Processors, 5.9* for 8 essentially 4.13Ghz
>doubling the speed of a 450 3 times nets 3.600Ghz , however trippling twice nets
>4.050Ghz fairly close. According to Professor Hyatt each time you tripple you
>net 90points so this would mean that there should be a 180 point difference in
>the SSDF rating for Junior and the rating it earned at Dortmund. This isn't the
>case so here are the options subtract by 237, 173 or 180.
>
>In my opinion subtracting by 180 seems right , just look at Rebel 10 it was in
>the 2450+ range in many games against GM's and IM's on similar hardware.
>
>One other thing to note is #31on the list
>    Chess Tiger 11.8 Pentium 90 MHz   2383 43 -43 261 50% 2385
>keep in mind +79 per double in the SSDF's findings for P90-P200 and
>P200-K6-2 450. Chess tiger would be 2462 on a Pentium 200, 2541 on a K6-2 450
>and 2620 on a 900Mhz . the problem i had with this (i don't know about the
>others on down the list) is that 90*3 is 270 , 270*3 is 810 so i can expect
>+180 from that rating on my computer?????  2563 hmmm 2541 at p90-K6-2 450 and
>2563 on my computer  22elo points difference and my computer is maybe twice as
>fast ?   Something is fishy in denmark.
>
>You can take 2541 and subtract 237 173 or 180......
>this one is maybe a coincidence  2541 - 180 2361 close to the SSDF rating given
>on a P90 but on a K6-2 450, -173 2368 ditto,  2304.
>
>lastly 2383 on a P90 +79 to 200 +79 to 450 and +79 to 900
>2620 - 237 2383 !!!!!!!!!!!!!!!!!  2620-173 2447  , 2620-180 2440
>
>i hope i didn't confuse i just thought i'd point this out. thankyou

The SSDF ratings are certainly delfated in the mid and low range. Junior 3.x and
Junior 4.0 played regularly in tournaments and got an official rating (not a
TPR) in the high 2300's. A rating of 2292 for Junior 4.0 P90 is therefore 50-100
points too low.

Amir



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.