Stefan Pohl Computer Chess

Latest Website-News (2024/11/05): Testrun of Stockfish 241031 finished: 0 Celo to Stockfish 241012.

 

Dont forget to take a look at my EAS-Ratinglist (The world's first engine-ratinglist not measuring strength of engines, but engines's style of play)

 

Next testruns: Stormphrax 6 and Integral 5. Testruns of Velvet 8.1 (normal & risky) will follow.

 

 

Stay tuned

UHO-Top15 Engines Ratinglist (+ regular testing of Stockfish Dev-versions)

 

 

Playing conditions:

 

The 15 strongest engines and the latest StockfishDev version are playing 1000 games vs. each opponent: 15000 games per engine are played. A RoundRobin Tournament with 120000 games overall !

 

Hardware: AMD Ryzen 9 7945HX 16-core (32 threads) notebook with 64GB RAM (since 2024/10/08), 2 identical machines.

Speed: (singlethread, TurboBoost-mode switched off, chess starting position) Stockfish 17: 600 kn/s (when 26 games are running simultaneously)

Hash: 512MB per engine

GUI: Cutechess-cli (GUI ends game, when a 5-piece endgame is on the board, all other games are played until mate or draw by chess-rules (3fold, 50-moves, stalemate))

Tablebases: None for engines, 5 Syzygy for cutechess-cli

Openings: My UHO_2022_6mvs_+120_+129 openings are used (first 500 lines) (UHO 2022 openings are part of my Anti Draw Openings download-package). 

Ponder, Large Memory Pages & learning: Off

Thinking time: 3min+1sec per game/engine. One testrun (15000 games) takes around 80-85 hours (=3.5 days)

The version-numbers of the Stockfish engines are the date of the latest patch, which was included in the Stockfish sourcecode, not the release-date of the engine-file, written backwards (year,month,day))(example: 200807 = August, 7, 2020). The used SF compile is the AVX512-compile, which is the fastest on my AMD Ryzen CPU. SF binaries are taken from https://github.com/official-stockfish/Stockfish/releases (except the official SF-release versions, which are taken form the official Stockfish website).

Read the explanation, why I chose my testing-conditions, like I did here

 

Latest update: 2024/11/05: Stockfish 241031 (+0 Celo to Stockfish 241012)

 

(Ordo-calculation fixed to Stockfish 17 = 3843 Celo. Mention, there are no human or "realistic" Elo numbers in enginechess, since the engines reached superhuman strength, so I decided to use "Celo" (=Computer Elo) instead)

 

See the tournament cross-table as a picture (done by Fritz18 GUI) here

See the individual statistics of engine-results here

See the Engines Aggressiveness Score Ratinglist here

See the Gamepair-statistics of the UHO-Top15 Ratinglist here

See the full UHO Ratinglist (with EAS-Ratinglist): here

Download the current gamebase, the full-list gamebase and the archive here

See the old SPCC-Ratinglist (full list) and EAS-List from 2020 until 2023/08/28: here

 

(best Stockfish Celo: Stockfish 241004: 3850 Celo, latest full release (Stockfish 17) had 3843 Celo)

(highest EAS-Score since Stockfish 16 release: Stockfish 240519: 203882 EAS-points)

(Read the explanation of the Lc0-entry in the Ratinglist here).

     Program                    Celo    +    - Games    Score   Av.Op. Draws

   1 Stockfish 241031 a512    : 3848    4    4 15000    70.4%   3692   48.6%
   2 Stockfish 17 240906      : 3843    4    4 15000    69.7%   3692   48.7%
   3 Torch 3 popavx2          : 3800    4    4 15000    64.1%   3695   49.0%
 [   Lc0 0.32dev BT4-6077500  : 3762   15   15  1000 (NN vs SF15.1 testing)]
   4 Obsidian 14.0 a512       : 3747    4    4 15000    56.6%   3699   50.5%
   5 Berserk 13 avx2          : 3724    4    4 15000    53.3%   3700   51.0%
   6 KomodoDragon 3.3 avx2    : 3720    4    4 15000    52.7%   3701   51.0%
   7 Caissa 1.21 a512         : 3702    4    4 15000    50.1%   3702   50.7%
   8 Alexandria 7.1 a512      : 3698    4    4 15000    49.6%   3702   50.9%
   9 PlentyChess 2.1 avx2     : 3672    4    4 15000    45.8%   3704   51.1%
  10 Ethereal 14.38 avx2      : 3670    4    4 15000    45.5%   3704   50.3%
  11 RubiChess 240817 avx2    : 3655    4    4 15000    43.3%   3705   50.2%
  12 Starzix 6.0 a512         : 3653    4    4 15000    43.1%   3705   50.4%
  13 Viridithas 15.0 a512     : 3648    4    4 15000    42.2%   3706   50.4%
  14 Clover 8.0 avx2          : 3639    4    4 15000    41.0%   3706   51.2%
  15 Motor 0.80 avx2          : 3620    4    4 15000    38.3%   3707   50.3%
  16 Lizard 11.0 avx2         : 3590    4    4 15000    34.2%   3709   48.3%

Games        : 120000 (finished)

White Wins   : 58171 (48.5 %)
Black Wins   : 1658   (1.4 %)
Draws        : 60171 (50.1 %)

Below the UHO-Top15 Ratinglist, recalculated with Gamepairs (using my Gamepair Rescoring Tool V1.5), Ordo-calculation fixed to Stockfish 17 = 3843 Celo, realizing Vondele's (Stockfish Maintainer) idea: "Thinking uniquely in game pairs makes sense with the biased openings used these days. While pentanomial makes  sense it is a bit complicated so we could simplify and score game pairs only (not games) as W-L-D (a traditional score of 2-0, or 1.5-0.5 is just a W)."

See the head-to-head gamepair-statistics of the UHO-Top15 Ratinglist here

   # PLAYER                   :    Celo  Error   Pairs     W     D     L   (%)  CFS(%)
   1 Stockfish 241031 a512    :    3861     13    7500  6052  1294   154  89.3     100
   2 Stockfish 17 240906      :    3843   ----    7500  5918  1402   180  88.3     100
   3 Torch 3 popavx2          :    3690     12    7500  4730  2098   672  77.1     100
   4 Obsidian 14.0 a512       :    3544     12    7500  3323  2724  1453  62.5     100
   5 Berserk 13 avx2          :    3490     12    7500  2782  2858  1860  56.1      92
   6 KomodoDragon 3.3 avx2    :    3484     12    7500  2680  2949  1871  55.4     100
   7 Caissa 1.21 a512         :    3440     12    7500  2238  3024  2238  50.0      98
   8 Alexandria 7.1 a512      :    3431     12    7500  2153  3025  2322  48.9     100
   9 PlentyChess 2.1 avx2     :    3373     12    7500  1575  3113  2812  41.8      84
  10 Ethereal 14.38 avx2      :    3369     12    7500  1579  3025  2896  41.2     100
  11 RubiChess 240817 avx2    :    3342     12    7500  1391  2902  3207  37.9      99
  12 Starzix 6.0 a512         :    3332     12    7500  1281  2947  3272  36.7     100
  13 Viridithas 15.0 a512     :    3321     12    7500  1203  2895  3402  35.3     100
  14 Clover 8.0 avx2          :    3296     12    7500  1009  2841  3650  32.4     100
  15 Motor 0.80 avx2          :    3256     12    7500   757  2660  4083  27.8     100
  16 Lizard 11.0 avx2         :    3172     13    7500   368  2165  4967  19.3     ---

 

------------------------------------------------------------------- 
--- Number of all Gamepairs          : 60000 
--- Number of drawn Gamepairs overall: 20961 (= 34.93%) 
--- Number of 1:1 drawn Gamepairs    : 9799  (= 16.33%) 
--- Number of 2-draws drawn Gamepairs: 11162 (= 18.60%) 
------------------------------------------------------------------- 

Aborted testruns, because the tested engine was too weak to enter the UHO-Top15 Ratinglist:

Minic 3.41, Booot 7.3, Black Marlin 9.0, Equisetum 1.0

Below you find a diagram of the progress of Stockfish in my tests since February 2023. 

And below that diagram, the older diagrams.

 

You can save the diagrams on your PC with mouseclick (right button) and then choose "save image"...