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'''Stockfish NNUE''',<br/>
a Stockfish branch by [[Hisayori Noda]] aka Nodchip, which uses [[NNUE|Efficiently Updatable Neural Networks]] - stylized as '''ƎUИИ''' or reversed as '''NNUE''' - to replace its standard [[Stockfish#Evaluation|evaluation]].
NNUE, introduced in 2018 by [[Yu Nasu]] <ref>[[Yu Nasu]] ('''2018'''). ''ƎUИИ Efficiently Updatable Neural-Network based Evaluation Functions for Computer Shogi''. Ziosoft Computer Shogi Club, [https://github.com/ynasu87/nnue/blob/master/docs/nnue.pdf pdf] (Japanese with English abstract)[https://github.com/asdfjkl/nnue GitHub - asdfjkl/nnue translation] </ref>,
were previously successfully applied in [[Shogi]] evaluation functions embedded in a Stockfish based search <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72754 The Stockfish of shogi] by [[Larry Kaufman]], [[CCC]], January 07, 2020</ref>, such as [[YaneuraOu]] <ref>[https://github.com/yaneurao/YaneuraOu GitHub - yaneurao/YaneuraOu: YaneuraOu is the World's Strongest Shogi engine(AI player), WCSC29 1st winner, educational and USI compliant engine]</ref>,
and [[Kristallweizen]] <ref>[https://github.com/Tama4649/Kristallweizen/ GitHub - Tama4649/Kristallweizen: 第29回世界コンピュータ将棋選手権 準優勝のKristallweizenです。]</ref>. YaneuraOu's author [[Motohiro Isozaki]] made an unbelievable prediction that NNUE can help to increase Stockfish strength by around 100 points, almost one year before revealing <ref>[http://yaneuraou.yaneu.com/2019/06/24/%E5%B0%86%E6%A3%8B%E3%82%BD%E3%83%95%E3%83%88%E9%96%8B%E7%99%BA%E8%80%85%E3%81%8Cstockfish%E3%81%AB%E8%B2%A2%E7%8C%AE%E3%81%99%E3%82%8B%E6%97%A5/ 将棋ソフト開発者がStockfishに貢献する日 The day when shogi software developers contribute to Stockfish] by [[Motohiro Isozaki]], June 2019</ref> <ref>[https://www.reddit.com/r/chess/comments/cltich/shogi_engine_developer_claims_he_can_make/ shogi engine developer claims he can make Stockfish stronger], [[Computer Chess Forums|Reddit]], August 2019</ref>.
=See also=
* [[:Category:NN|Category: Neural Network Engines]]
* [[Fat Fritz#Fat Fritz 2|Fat Fritz 2.0]]
* [[Neural Networks]]
* [[NNUE]]
=Forum Posts=
==2020 ...==
===January ...===
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72754 The Stockfish of shogi] by [[Larry Kaufman]], [[CCC]], January 07, 2020 » [[Shogi]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74058 Stockfish NNUE] by [[Henk Drost]], [[CCC]], May 31, 2020 » [[Stockfish]]
===August===
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74654 Repository for Stockfish+NNUE Android Builds] by [[Ted Summers|AdminX]], [[CCC]], August 02, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74666 SF NNUE Problem] by [[Stephen Ham]], [[CCC]], August 03, 2020
* <span id="Continue"></span>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74531&start=8 Re: NNUE accessible explanation] by [[Jonathan Rosenthal]], [[CCC]], August 03, 2020 » [[#NNUEaccExp|NNUE accessible explanation]]
* [https://groups.google.com/d/msg/fishcooking/6OI3AejYvpQ/dNmluMLBAgAJ <nowiki>[NNUE] Worker update on fishtest</nowiki>] by [[Joost VandeVondele]], [[Computer Chess Forums|FishCooking]], August 03, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74683 Is this SF NN almost like 20 MB book?] by [[Jouni Uski]], [[CCC]], August 04, 2020
* [https://groups.google.com/d/msg/fishcooking/Kzw1W_Yr1d8/YNEmCqIyBAAJ NNUE evaluation merged in master] by [[Joost VandeVondele]], [[Computer Chess Forums|FishCooking]], August 06, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74705 What happens with my hyperthreading?] by [[Kai Laskos]], [[CCC]], August 06, 2020 » [[Thread]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74722 Stockfish NNUE style] by Rowen, [[CCC]], August 08, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?t=74739 SF NNUE training questions] by [[Jouni Uski]], [[CCC]], August 10, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74765 Progress of Stockfish in 6 days] by [[Kai Laskos]], [[CCC]], August 12, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74777 Neural Networks weights type] by [[Fabio Gobbato]], [[CCC]], August 13, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74780 Don't understand NNUE] by Lucasart, [[CCC]], August 14, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74978 Stockfish 12 has arrived!] by daniel71, [[CCC]], September 02, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75008 AVX2 optimized SF+NNUE and processor temperature] by corres, [[CCC]], September 05, 2020 » [[AVX2]]
===October ...===
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75296 BONA_PIECE_ZERO] by [[Marco Belli|elcabesa]], [[CCC]], October 04, 2020
* [https://groups.google.com/d/msg/fishcooking/yjh1YOxy7nw/rJA6u1ODAAAJ SF NNUE/Classical] by [[Fauzi Akram Dabat|Fauzi]], [[Computer Chess Forums|FishCooking]], October 05, 2020
: [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75506&start=7 Re: NNUE Question - King Placements] by [[Ronald de Man|syzygy]], [[CCC]], October 23, 2020
: [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75506&start=9 Re: NNUE Question - King Placements] by [[Ronald de Man|syzygy]], [[CCC]], October 23, 2020
==2021 ...==
* [https://groups.google.com/g/fishcooking/c/cad1MGSdpU4/m/Ury4iBqSBgAJ Shouldn't positional attributes drive SF's NNUE input features (rather than king position)?] by [[Nick Pelling]], [[Computer Chess Forums|FishCooking]], January 10, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=76381 stockfish NNUE question] by [[Jon Dart]], [[CCC]], January 21, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=76437 256 in NNUE?] by Ted Wong, [[CCC]], January 28, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76537 Fat Fritz 2] by [[Jouni Uski]], [[CCC]], February 09, 2021 » [[Fat Fritz#Fat Fritz 2|Fat Fritz 2.0]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76833 NNUE Research Project] by [[Ed Schroder|Ed Schröder]], [[CCC]], March 10, 2021 » [[NNUE]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76844 NNUE ranking] by Jim Logan, [[CCC]], March 12, 2021
=External Links=
