STOCKFISH CHESS LATEST VERSION LICENSE

The authors of this game engine are Tord Romstad, Marco Costalba, Joona Kiiski and Gary Linscott.Ĭurrently Stockfish version 14 is available which incorporates new efficiently updatable neural network backwards ( NNUE) architecture and is much stronger than previous versions.

Glaurung was written in C and later versions were completely written in C++. It is a fork of Glaurung engine, which is an open-source engine, developed by Tord Romstad and released in fall 2004.

STOCKFISH CHESS LATEST VERSION LICENSE

It is free and Universal Chess Interface (UCI) compliant, distributed under under the GNU General Public License version 3 (GPL v3). The used SF compile is the AVX2-compile, which is the fastest on my AMD Ryzen CPU. SF binaries are taken from (except the official SF-release versions, which are taken form the official Stockfish website). One 2000 games-testrun takes about 47 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). Thinking time: 10min+ 3sec per game/engine (average game-duration: around 30 minutes). Ponder, Large Memory Pages & learning: Off Openings: Because meanwhile the high draw-rates made it impossible to measure Elo-progress in regression-tests, here my UHO_2022_6mvs_+120_+129 openings are used (part of my UHO 2022 download). Tablebases: None for engines, 5 Syzygy for cutechess-cli GUI: Cutechess-cli (GUI ends game, when a 5-piece endgame is on the board) Speed: Singlethread, TurboBoost-mode switched off, chess starting position: Stockfish 15: 750000 n/s

Hardware: AMD Ryzen 3900 12-core (24 threads) notebook with 32GB RAM. Reference point (opponent) is the latest official SF-release ( Stockfish 15 right now).Įach SF-dev version plays 2000 games versus this engine (10min+3sec = average game duration 30 minutes!!!)

Stockfish Regression Testing with long thinking time

Stockfish chess latest version