Stefan Pohl Computer Chess

Home of famous UHO openings and EAS Ratinglist


Latest Website-News (2024/03/28): Testrun of Stockfish 240322 finished: +1 Elo to Stockfish 240314.

 

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 testrun: Alexandria 6.1.0

 

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 3900 12-core (24 threads) notebook with 32GB RAM. 

Speed: (singlethread, TurboBoost-mode switched off, chess starting position) Stockfish 16.1: 500 kn/s (when 20 games are running simultaneously)

Hash: 256MB 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, insufficent material))

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

OpeningsMy UHO_2022_6mvs_+120_+129 openings are used (first 500 lines) (part of my UHO 2022 download). 

Ponder, Large Memory Pages & learning: Off

Thinking time: 3min+1sec per game/engine (average game-duration: 7 min 50sec), around 3500-4000 games in 24 hours are played. One testrun (15000 games) takes around 100 hours (=4 days and some hours)

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 AVX2-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: 2024/03/28: Stockfish 240322 (+1 Elo to Stockfish 240314)

 

(Ordo-calculation fixed to Stockfish 16.1 = 3833 Elo)

 

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 Elo so far: Stockfish 240322: 3839 Elo, latest full release (Stockfish 16.1) had 3833 Elo)

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

     Program                    Elo    +    -  Games    Score   Av.Op. Draws

   1 Stockfish 240322 avx2    : 3839    4    4 15000    72.2%   3665   47.4%
   2 Stockfish 16.1 240224    : 3833    4    4 15000    71.4%   3666   47.2%
   3 Torch 2 popavx2          : 3806    4    4 15000    68.1%   3667   47.3%
  [  Lc0 0.31dev T3-2815      : 3783   15   15  1000 (NN vs SF15.1 testing)]
   4 KomodoDragon 3.3 avx2    : 3748    4    4 15000    60.4%   3671   48.7%
   5 Berserk 12 avx2          : 3724    4    4 15000    57.1%   3673   48.9%
   6 Caissa 1.17 avx2         : 3675    4    4 15000    50.0%   3676   50.5%
   7 RubiChess 240112 avx2    : 3668    4    4 15000    49.0%   3677   49.2%
   8 Ethereal 14.25 nnue      : 3667    4    4 15000    48.9%   3677   50.4%
   9 Obsidian 11.0 avx2       : 3663    4    4 15000    48.3%   3677   50.0%
  10 Seer 2.8.0 avx2          : 3623    4    4 15000    42.6%   3679   49.8%
  11 CSTal 2.0 avx2           : 3610    4    4 15000    40.7%   3680   50.6%
  12 Rebel 16.3 avx2          : 3608    4    4 15000    40.5%   3680   49.4%
  13 Clover 6.1 avx2          : 3600    4    4 15000    39.4%   3681   50.6%
  14 Koivisto 9.2 avx2        : 3594    4    4 15000    38.6%   3681   49.6%
  15 Alexandria 6.0 avx2      : 3587    4    4 15000    37.6%   3682   48.4%
  16 RofChade 3.1 avx2        : 3569    4    4 15000    35.1%   3683   47.9%


Games        : 120000 (finished)

White Wins   : 57982 (48.3 %)
Black Wins   : 3071 (2.6 %)
Draws        : 58947 (49.1 %)


Below the UHO-Top15 Ratinglist, recalculated with Gamepairs (using my Gamepair Rescoring Tool V1.5), 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                   :  RATING  ERROR  PLAYED     W     D     L   (%)  CFS(%)
   1 Stockfish 240322 avx2    :    3867     14    7500  6361  1024   115  91.6     100
   2 Stockfish 16.1 240224    :    3833   ----    7500  6202  1107   191  90.1     100
   3 Torch 2 popavx2          :    3715     13    7500  5532  1467   501  83.5     100
   4 KomodoDragon 3.3 avx2    :    3526     13    7500  4193  2029  1278  69.4     100
   5 Berserk 12 avx2          :    3455     13    7500  3581  2256  1663  62.8     100
   6 Caissa 1.17 avx2         :    3334     13    7500  2414  2665  2421  50.0      98
   7 RubiChess 240112 avx2    :    3325     13    7500  2323  2687  2490  48.9      92
   8 Ethereal 14.25 nnue      :    3319     13    7500  2286  2652  2562  48.2     100
   9 Obsidian 11.0 avx2       :    3307     13    7500  2180  2664  2656  46.8     100
  10 Seer 2.8.0 avx2          :    3214     13    7500  1340  2740  3420  36.1     100
  11 Rebel 16.3 avx2          :    3178     13    7500  1122  2580  3798  32.2      51
  12 CSTal 2.0 avx2           :    3178     13    7500  1112  2598  3790  32.1     100
  13 Clover 6.1 avx2          :    3151     13    7500   944  2490  4066  29.2      99
  14 Koivisto 9.2 avx2        :    3140     13    7500   883  2443  4174  28.1      63
  15 Alexandria 6.0 avx2      :    3139     14    7500   835  2514  4151  27.9     100
  16 RofChade 3.1 avx2        :    3092     14    7500   594  2280  4626  23.1     ---

 

------------------------------------------------------------------- 
--- Number of all Gamepairs          : 60000 
--- Number of drawn Gamepairs overall: 18098 (= 30.16%) 
--- Number of 1:1 drawn Gamepairs    : 8404  (= 14.01%) 
--- Number of 2-draws drawn Gamepairs: 9694  (= 16.16%) 
------------------------------------------------------------------- 


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

Minic 3.40, Stormphrax 4.1.0, 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"...







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