Stefan Pohl Computer Chess

Home of famous UHO openings and EAS Ratinglist


Latest Website-News (2024/07/23): Super 3 Tournament updated.

Testrun of Lizard 10.5 finished: +44 Celo to Lizard 10.4, so Lizard 10.5 entered the UHO-Top15 Ratinglist and kicked Uralochka 3.41a out.

Another good news: Lizard 10.5 has a nice EAS-Score.

The engines on rank 12-16 (last 5) of my UHO-Top15 Ratinglist are extremely close in strength: All 5 engines are in a 7 Celo range...

 

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: Stockfish 240719

 

Great news: Patricia 3 was just released. The first engine, developed by using my EAS-Tool (besides Ed Schroeder's Rebel EAS) for an aggressive playing style. Learn more about the Patricia-project on my site Patricia - the EAS Engine

 

 

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))

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

OpeningsMy 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 (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: 2024/07/21: Lizard 10.5 (+44 Celo to Lizard 10.4)

 

(Ordo-calculation fixed to Stockfish 16.1 = 3833 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 240711: 3844 Celo, latest full release (Stockfish 16.1) had 3833 Celo)

(highest EAS-Score since Stockfish 16.1 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 240711 avx2    : 3843    4    4 15000    71.1%   3680   47.6%
   2 Stockfish 16.1 240224    : 3833    4    4 15000    69.8%   3680   48.2%
   3 Torch 2 popavx2          : 3800    4    4 15000    65.5%   3683   48.3%
 [   Lc0 0.31dev T3-2815      : 3781   15   15  1000 (NN vs SF15.1 testing)]
   4 Berserk 13 avx2          : 3742    4    4 15000    57.6%   3686   50.0%
   5 KomodoDragon 3.3 avx2    : 3732    4    4 15000    56.1%   3687   50.7%
   6 Obsidian 13.0 avx2       : 3716    4    4 15000    53.9%   3688   50.6%
   7 PlentyChess 2.1 avx2     : 3693    4    4 15000    50.5%   3690   51.3%
   8 Ethereal 14.38 avx2      : 3691    4    4 15000    50.3%   3690   49.9%
   9 Caissa 1.19 avx2         : 3681    4    4 15000    48.9%   3691   50.7%
  10 Alexandria 7.0 avx2      : 3663    4    4 15000    46.2%   3692   51.3%
  11 RubiChess 240112 avx2    : 3642    4    4 15000    43.3%   3693   48.6%
  12 Lizard 10.5 avx2         : 3604    4    4 15000    37.9%   3696   49.5%
  13 Clover 6.2 avx2          : 3602    4    4 15000    37.6%   3696   51.5%
  14 Titan 1.1 avx2           : 3601    4    4 15000    37.4%   3696   49.9%
  15 Seer 2.8.0 avx2          : 3599    4    4 15000    37.1%   3696   49.8%
  16 Viridithas 13.0 avx2     : 3597    4    4 15000    36.8%   3696   48.7%


Games        : 120000 (finished)

White Wins   : 57942 (48.3 %)
Black Wins   : 2312 (1.9 %)
Draws        : 59746 (49.8 %)


Below the UHO-Top15 Ratinglist, recalculated with Gamepairs (using my Gamepair Rescoring Tool V1.5), Ordo-calculation fixed to Stockfish 16.1 = 3833 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 240711 avx2    :    3874     13    7500  6158  1207   135  90.2     100
   2 Stockfish 16.1 240224    :    3833   ----    7500  5892  1396   212  87.9     100
   3 Torch 2 popavx2          :    3708     12    7500  4995  1891   614  79.2     100
   4 Berserk 13 avx2          :    3547     12    7500  3586  2468  1446  64.3     100
   5 KomodoDragon 3.3 avx2    :    3524     12    7500  3313  2652  1535  61.9     100
   6 Obsidian 13.0 avx2       :    3480     12    7500  2869  2800  1831  56.9     100
   7 PlentyChess 2.1 avx2     :    3425     12    7500  2358  2881  2261  50.6      69
   8 Ethereal 14.38 avx2      :    3423     12    7500  2310  2938  2252  50.4     100
   9 Caissa 1.19 avx2         :    3401     12    7500  2151  2865  2484  47.8     100
  10 Alexandria 7.0 avx2      :    3356     12    7500  1750  2877  2873  42.5     100
  11 RubiChess 240112 avx2    :    3319     12    7500  1475  2766  3259  38.1     100
  12 Lizard 10.5 avx2         :    3217     12    7500   763  2494  4243  26.8      90
  13 Titan 1.1 avx2           :    3211     12    7500   738  2447  4315  26.2      71
  14 Seer 2.8.0 avx2          :    3208     12    7500   728  2426  4346  25.9      57
  15 Viridithas 13.0 avx2     :    3207     12    7500   704  2461  4335  25.8      60
  16 Clover 6.2 avx2          :    3206     12    7500   731  2389  4380  25.7     ---

 

------------------------------------------------------------------- 
--- Number of all Gamepairs          : 60000 
--- Number of drawn Gamepairs overall: 19479 (= 32.46%) 
--- Number of 1:1 drawn Gamepairs    : 9011  (= 15.02%) 
--- Number of 2-draws drawn Gamepairs: 10468 (= 17.45%) 
------------------------------------------------------------------- 


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, Stormphrax 5


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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