Really ?
How strong is Stockfish 11 ?
Stockfish version 11 is elo rated 3534 on the CCRL 40/2 rating list. We play time handicap matches as long as it takes that opponents can beat it. The first match is played at equal time control (40/10) and 1000 games. Thereafter we increase the time control of the opponent with a factor two (40/20) and 800 games. We repeat this process till the opponent finally is able to win or till the maximum of a factor 10 is reached.
SF11 versus | CCRL elo | Equal | Factor 2 | Factor 2.5 | Factor 3 | Factor 3.5 | Factor 4 |
Komodo 14 | 3446 | 29.9% | 45.5% | 51.6% | |||
Houdini 6.03 | 3445 | 26.4% | 40.4% | 44.3% | 47.9% | 51.8% |
SF11 versus | CCRL elo | Equal | Factor 2 | Factor 3 | Factor 4 | F5 | F6 | F7 | F8 |
Ethereal 12 | 3373 | 14.6% | 29.7% | 38.2% | 43.4% | 46.4% | 50.5% | ||
Xiphos 0.6 | 3336 | 16.1% | 25.2% | 34.1% | 38.6% | 42.6% | 47.7% | 49.1% | 51.5% |
Fire 7.1 | 3336 | 16.4% | 31.9% | 37.5% | 44.3% | 46.5% | 50.6% | ||
Rofchade 2.3 | 3306 | 16.6% | 26.0% | 34.0% | 38.8% | 39.0% | 44.6% | 45.0% | 51.4% |
SF11 versus | CCRL elo | Equal | Factor 2 | Factor 4 | Factor 6 | Factor 8 | Factor 10 |
Booot 6.4 | 3295 | 6.0% | 15.6% | 29.5% | 36.0% | 43.2% | 48.0% |
Schooner 2.2 | 3277 | 15.4% | 19.7% | 33.8% | 34.7% | 41.4% | 44.6% |
Laser 1.7 | 3274 | 7.4% | 19.3% | 27.7% | 28.0% | 42.1% | 42.1% |
100 games only
SF11 versus | CCRL elo | Equal | Factor 10 |
Shredder 13 | 3271 | 5.4% | 34.7% |
Defenchess 2.2 | 3269 | 12.4% | 43.0% |
RubiChess 1.7.2 | 3243 | 5.0% | 47.0% |
Andscacs 0.95 | 3229 | 9.5% | 28.0% |
Arasan 22 | 3181 | 3.5% | 33.0% |
--------------------- | --------------------- | ---------------- | ------------------- |
Fruit 2.1 | 2685 | 1.0% | 4.5% |
Factor 100
Fun with the known names of the past
and/or former rating list leaders
and world champions.
Shredder | Multiple World Champion titles and dominating the rating lists from 1999-2004 |
Crafty | World Champion 1983 and 1986 |
Rybka | 4 times World Champion [*] and dominating the rating lists from 2005-2011 |
Benjamin | aka Rebel. 3 times rating list leader, MM4 Turbo, ChessMachine, Rebel 8 & 9 |
* Rybka was disqualified in 2011
SF11 versus | CCRL elo | Equal | Factor 10 | Factor 100 | WLD * |
Shredder 12 | 2955 | 1.5% | 4.5% | 18% | 6 70 | 24 |
Crafty 25.6 | 2951 | 3% | 6.5% | 25% | 12 | 62 | 26 |
Rybka 1.0 | 2852 | crashed | 6.0% | 32.5% | 15 | 50 | 35 |
Fruit 2.1 | 2685 | 1% | 4.5% | 9% | 1 | 83 | 16 |
Benjamin | 2646 | 0% | 6.5% | 11.5% | 5 | 82 | 13 |
ProDeo 2.2 | 2771 | 0.5% | 2.5% | 9.0% | 3 | 85 | 12 |
* Win | Loss | Draw ratio, factor 100 only.
Progress has been incredible.
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What about Lc0 ?
On CCRL 40/2 Lc0 is rated 3641 running on a RTX 2080, our test is done on a RTX 1060 6Gb.
Lc0 25.1 versus | CCRL elo | Threads | 500 games | WDL | PGN |
Stockfish 11 | 3534 | 1 | 53.9% | 166 | 207 | 127 | |
Stockfish 11 | 3596 | 4 | 67.9% | 241 | 197 | 62 |
Last update June 21, 2020