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On 30 May 2014, Stockfish 170514 (a development version of Stockfish 5 with tablebase support) convincingly won TCEC Season 6, scoring 35.5–28.5 against Komodo 7x in the Superfinal. [37] Stockfish 5 was released the following day. [38] In TCEC Season 7, Stockfish again made the Superfinal, but lost to Komodo with a score of 30.5–33.5. [37]
After four hours of training, DeepMind estimated AlphaZero was playing chess at a higher Elo rating than Stockfish 8; after nine hours of training, the algorithm defeated Stockfish 8 in a time-controlled 100-game tournament (28 wins, 0 losses, and 72 draws). [2] [3] [4] The trained algorithm played on a single machine with four TPUs.
Leela Chess Zero (abbreviated as LCZero, lc0) is a free, open-source chess engine and volunteer computing project based on Google's AlphaZero engine. It was spearheaded by Gary Linscott, a developer for the Stockfish chess engine, and adapted from the Leela Zero Go engine.
A single-processor version of Komodo (which won the CCT15 tournament in February earlier that year) was released as a stand-alone product shortly before the 5.1 MP release. This version, named Komodo CCT , was still based on the older C code, and was approximately 30 Elo stronger than the 5.1 MP version, as the latter was still undergoing ...
Efficiently updatable neural networks were originally developed in computer shogi in 2018 by Yu Nasu, [61] [62] and had to be first ported to a derivative of Stockfish called Stockfish NNUE on 31 May 2020, [63] and integrated into the official Stockfish engine on 6 August 2020, [64] [65] before other chess programmers began to adopt neural ...
Performance rating (abbreviated as Rp) in chess is the level a player performed at in a tournament or match based on the number of games played, their total score in those games, and the Elo ratings of their opponents. It is the Elo rating a player would have if their performance resulted in no net rating change.
The authors used the program Crafty and argued that even a lower-ranked program (Elo around 2700) could identify good players. [19] In their follow-up study, they used Rybka 3 to estimate chess player ratings. [20] In 2017, Jean-Marc Alliot compared players using Stockfish 6 with an ELO rating around 3300, well above top human players. [21]
The intended main line was 1. Ne3! Rxh2 2. 0-0-0# A tablebase discovered that 1. h4 also wins for White in 33 moves, even though Black can capture the pawn (which is not the best move – in case of capturing the pawn black loses in 21 moves, while Kh1-g2 loses in 32 moves).