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but [[Supervised Learning|supervised learning]], feeding in high quality games played by other strong chess playing entities.
His [[Leela Chess Zero#Lc0|Lc0]] derivative dubbed [[Deus X]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68094 TCEC season 13, 2 NN engines will be participating, Leela and Deus X] by Nay Lin Tun, [[CCC]], July 28, 2018</ref> won the [[PT 54]] and apparently became the driving force of the commercial [[ChessBase]] cloud project [[Fat Fritz]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71540 'Deus X' Unveiled as FAT FRITZ PROJECT...] by supersharp77, [[CCC]], August 13, 2019</ref>.
=Fat Fritz 2=
'''Fat Fritz 2''' is based on [[NNUE]] technology of [[Stockfish|Stockfish 12]] with a double sized network,
and thus, running on a CPU, not requiring expensive [[GPU]] graphic cards for game playing like its predecessor.
The network was trained by [[Albert Silver]] with the help of [[Daniel Uranga]] and [[Dietrich Kappe]], who provided scripts and ideas.
Further credits were given to the [[:Category:Stockfish Contributor|Stockfish contributors]], and in particular [[Yu Nasu]] for his groundbreaking work on NNUE, and [[Hisayori Noda]] for the initial [[Stockfish NNUE]] implementation <ref>[https://en.chessbase.com/post/fat-fritz-2-best-of-both-worlds Fat Fritz 2: The Best of Both Worlds] by [[Albert Silver]], [[ChessBase|ChessBase News]], February 10, 2021</ref>.
Using the original Fat Fritz as initial supervisor to evaluate chess positions, the learning of Fat Fritz 2 was [[Reinforcement Learning|reinforced]] by Stockfish's [[Alpha-Beta|alpha-beta]] [[Search|search]] <ref>[https://en.chessbase.com/post/fat-fritz-2-0-the-new-number-1 Fat Fritz 2.0 - The new number 1], [[ChessBase|ChessBase News]], February 09, 2021</ref>.
=Interviews=
* [[Deus X#interview|Deus X]]
* [[Fat Fritz#interview|Fat Fritz 2]]
=Selected Articles=
