Stefan Pohl Computer ChessHome of famous UHO openings and EAS RatinglistLatest Website-News (2023/05/26): Testruns of Stockfish 230520 finished: -1 Elo in SPCC Ratinglist testrun and -2 Elo in UHO-Top10 Ratinglist testrun.
NN-testrun of Lc0 0.30dev BT2-4510000 finished. See the result and download the games on NN vs SF 15.1 testing
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).
Stay tuned. SPCC Top Engines Ratinglist (+ regular testing of Stockfish Dev-versions)
Playing conditions:
Hardware: Since 20/07/21 AMD Ryzen 3900 12-core (24 threads) notebook with 32GB RAM. Speed: (singlethread, TurboBoost-mode switched off, chess starting position) Stockfish 14.1: 750 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 Openings: HERT_500 testset (by Thomas Zipproth) (download the file at the "Download & Links"-section or here). Mention, the HERT-set is not an Anti-Draw (UHO or something) opening-set, but a classical, balanced opening-set. Ponder, Large Memory Pages & learning: Off Thinking time: 3min+1sec per game/engine (average game-duration: 7 min 45sec). One 7000 games-testrun takes about 2 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 AVX2-compile, which is the fastest on my AMD Ryzen CPU. SF binaries are taken from abrok.eu (except the official SF-release versions, which are taken form the official Stockfish website).
To avoid distortions in the Ordo Elo-calculation, from now, only 2x Stockfish (latest official release + the latest 2 dev-versions)(all older engine-versions games will be deleted, every time, when a new version was tested). Stockfish's older Elo-results can still be seen in the Elo-diagrams below.
Latest update: 2023/05/26: Stockfish 230520 (-1 Elo to Stockfish 230505)
(Ordo-calculation fixed to Stockfish 15.1 = 3807 Elo)
See the individual statistics of engine-results here See the Engines Aggressiveness Score Ratinglist here Download the current gamebase here Download the complete game-archive here See the full SPCC-Ratinglist and full EAS-Ratinglist (without Stockfish dev-versions) from 2020 until today here (calculating the EAS-Ratings of the full list has a high effort and will be done only from time to time, not after each test)
(best Stockfish Elo so far: Stockfish 230325: 3817 SPCC-Elo, latest full release (Stockfish 15) had 3802 SPCC-Elo) Program Elo + - Games Score Av.Op. Draws 1 Stockfish 230505 avx2 : 3813 7 7 7000 66.5% 3691 66.5% The version-numbers (180622 for example) of the engines are the date of the latest patch, which was included in the Stockfish sourcecode, not the release-date of the engine-file. Especially the asmFish-engines are often released much later!! (Stockfish final HCE is Stockfish 200731, the latest version without neural-net and with HCE (=Hand Crafted Evaluation). This engine is (and perhaps will stay forever?) the strongest HCE (Hand Crafted Eval) engine on the planet. IMHO this makes it very interesting for comparsion.) Some engines are using a nnue-net based on evals of other engines. I decided to test these engines, too. As far as I know the follwing engines use nnue-nets based on evals of other engines (if I missed an engine, please contact me): Expositor 2BR17, Fire 8.NN, Nemorino 6.00, Gogobello 3, Coiled 1.1 (using Stockfish-eval-based nnue nets or nets directly from Stockfish website). Stockfish since 210615, Devre 4 (using Lc0-based nnue nets). Halogen 11.4 and Alexandria 3.5 using a Koivisto-eval-based net. Some engine-testruns were aborted, because the engine is too weak (weaker than Danasah 9): Tenax 0.8.0, Winter 2.0 Some engine-testruns were aborted, because the new version was clearly weaker than the engine-version already listed: Fire 230519, Drofa 4.0.0 Some engines could not be tested, because they do not work properly in cutechess-cli (with 20 games running simultaneously): LittleGoliath 3.16 Below you find a diagram of the progress of Stockfish in my tests since April 2022. And below that diagram, the older diagrams.
You can save the diagrams (as a JPG-picture (in originial size)) on your PC with mouseclick (right button) and then choose "save image"... The Elo-ratings of older Stockfish dev-versions in the Ordo-calculation can be a little different to the Elo-"dots" in the diagram, because the results/games of new Stockfish dev-versions - when getting part of the Ordo-calculation - can change the Elo-ratings of the opponent engines and that can change the Elo-ratings of older Stockfish dev-versions (in the Ordo-calculation / ratinglist, but not in the diagram, where all Elo-"dots" are the rating of one Stockfish dev-version at the moment, when the testrun of that Stockfish dev-version was finished). ![]()
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