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By January 2019, Leela was able to defeat the version of Stockfish that played AlphaZero (Stockfish 8) in a 100-game match. An updated version of Stockfish narrowly defeated Leela Chess Zero in the superfinal of the 14th TCEC season, 50.5–49.5 (+10 =81 −9), [42] but lost the superfinal of the next season to Leela 53.5–46.5 (+14 =79 -7).
There followed a tense period where the superfinalists traded wins, but beginning from game 71 Stockfish scored six wins without reply to take a big, and as it turned out decisive, lead. Stockfish mathematically won the superfinal after drawing game 95. The final score was +14 -8 =78 in favor of Stockfish. [17]
In the computer chess community, Komodo developer Mark Lefler called it a "pretty amazing achievement", but also pointed out that the data was old, since Stockfish had gained a lot of strength since January 2018 (when Stockfish 8 was released). Fellow developer Larry Kaufman said AlphaZero would probably lose a match against the latest version ...
Stockfish had the White pieces, which made it critical for Stockfish because Leela was better at the opening. However, Leela played what was perhaps its best game in the match to win with Black. It was the only Black win in the entire superfinal and, when Leela further won the reverse game, the only opening in which the same engine won with ...
Top Chess Engine Championship, formerly known as Thoresen Chess Engines Competition (TCEC or nTCEC), is a computer chess tournament that has been run since 2010. It was organized, directed, and hosted by Martin Thoresen until the end of Season 6; from Season 7 onward it has been organized by Chessdom.
Stockfish played a sterling second round robin, including a win against both Stoofvlees and AllieStein, to take first place. Leela also closed the gap by not losing any games while defeating Ethereal, rofChade and Fire. By the third round robin, Stockfish was effectively qualified for the superfinal, while the second slot was still up for grabs.
There was a glimmer of hope for Stockfish when it won games 43 and 45 to narrow the gap to 3 points, but Leela scored a decisive victory in games 61 and 62, outplaying Stockfish with both the white and black pieces in a Trompowsky Attack. The final third of the superfinal was more evenly contested, but Leela only conceded losses when Stockfish ...
This new "Stockfish NNUE" gained strength very quickly, and by August 2020 was outperforming the original Stockfish by almost a hundred elo at short time controls. [6] This led to strong anticipation of the results when Igel, which had narrowly beaten Minic in League 3, submitted an updated version including an NNUE.