Stefan Pohl Computer Chess

Latest Website-News (2024/12/03): Testrun of Patricia 4.0 finished: +172 Celo to Patricia 3.1. EAS-Score: 340432 (!). Because Patricia 4.0 is too weak for my UHO-Top15 Ratinglist, the result can be seen only in the UHO Full Ratinglist. Learn more about Patricia on my site Patricia - the EAS Engine

 

Jim Ablett made Windows/Linux and Android binaries, which do not have and Virus-alerts or Windows-permission errors, like the Patricia 4.0 binary on Patricia GitHub. Download here

(On my new AMD Ryzen machines, patricia_4_64_ja_bmi2 binary is the fastest (slightly faster than the Patricia_4.0_avx2 binary from GitHub!), but mention, older AMD CPUs support bmi2 only per emulation, so other binaries should run faster there: Just try the binaries by Jim out on your system)

 

Ceres Binary here, Ceres Installation Guide here, Ceres Nets here

 

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: Clover 8.1 avx2

 

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: 2024/11/27: Stockfish 241122  (+5 Celo to Stockfish 241113)

 

(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 241122: 3852 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 241122 a512    : 3852    4    4 15000    70.4%   3697   48.6%
   2 Stockfish 17 240906      : 3843    4    4 15000    69.2%   3697   49.0%
   3 Torch 3 popavx2          : 3802    4    4 15000    63.9%   3700   48.9%
 [   Lc0 0.32dev BT4-6077500  : 3764   15   15  1000 (NN vs SF15.1 testing)]
   4 Obsidian 14.0 a512       : 3747    4    4 15000    56.0%   3704   50.1%
   5 Berserk 13 avx2          : 3725    4    4 15000    52.8%   3705   51.0%
   6 KomodoDragon 3.3 avx2    : 3721    4    4 15000    52.2%   3705   50.6%
   7 Caissa 1.21 a512         : 3702    4    4 15000    49.5%   3707   50.5%
   8 Alexandria 7.1 a512      : 3697    4    4 15000    48.8%   3707   50.6%
   9 PlentyChess 3.0 a512     : 3686    4    4 15000    47.2%   3708   49.1%
  10 Ethereal 14.38 avx2      : 3668    4    4 15000    44.5%   3709   50.4%
  11 RubiChess 240817 avx2    : 3654    4    4 15000    42.5%   3710   50.2%
  12 Starzix 6.0 a512         : 3652    4    4 15000    42.1%   3710   50.3%
  13 Integral 5.0 a512        : 3645    4    4 15000    41.2%   3710   48.8%
  14 Viridithas 15.0 a512     : 3644    4    4 15000    41.0%   3711   50.5%
  15 Clover 8.0 avx2          : 3641    4    4 15000    40.6%   3711   50.8%
  16 Lizard 11.1 a512         : 3624    4    4 15000    38.2%   3712   48.6%

Games        : 120000 (finished)

White Wins   : 58657 (48.9 %)
Black Wins   : 1500   (1.3 %)
Draws        : 59843 (49.9 %)

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 241122 a512    :    3878     12    7500  6077  1279   144  89.6     100
   2 Stockfish 17 240906      :    3843   ----    7500  5837  1444   219  87.5     100
   3 Torch 3 popavx2          :    3700     11    7500  4678  2139   683  76.6     100
   4 Obsidian 14.0 a512       :    3552     11    7500  3216  2781  1503  61.4     100
   5 Berserk 13 avx2          :    3502     11    7500  2698  2910  1892  55.4      96
   6 KomodoDragon 3.3 avx2    :    3495     11    7500  2569  3033  1898  54.5     100
   7 Caissa 1.21 a512         :    3449     11    7500  2110  3096  2294  48.8      99
   8 Alexandria 7.1 a512      :    3439     11    7500  1980  3157  2363  47.4     100
   9 PlentyChess 3.0 a512     :    3411     11    7500  1721  3141  2638  43.9     100
  10 Ethereal 14.38 avx2      :    3375     12    7500  1414  3079  3007  39.4     100
  11 RubiChess 240817 avx2    :    3351     11    7500  1262  2928  3310  36.3      99
  12 Starzix 6.0 a512         :    3341     11    7500  1156  2960  3384  35.1     100
  13 Viridithas 15.0 a512     :    3324     11    7500  1013  2937  3550  33.1      78
  14 Integral 5.0 a512        :    3320     11    7500   980  2940  3580  32.7      98
  15 Clover 8.0 avx2          :    3311     11    7500   949  2833  3718  31.5     100
  16 Lizard 11.1 a512         :    3270     12    7500   675  2673  4152  26.8     ---

------------------------------------------------------------------- 
--- Number of all Gamepairs          : 60000 
--- Number of drawn Gamepairs overall: 21665 (= 36.11%) 
--- Number of 1:1 drawn Gamepairs    : 10384 (= 17.31%) 
--- Number of 2-draws drawn Gamepairs: 11281 (= 18.80%) 
------------------------------------------------------------------- 

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"...