is a free and open source shogi engine. Being one of the first shogi engines to implement an efficiently updatable neural network, it won the 29th annual World Computer Shogi Championship in 2019. It supports the Universal Shogi Interface communication protocol (a dialect of the Universal Chess Interface used by most chess engines), which gives it compatibility with most shogi programs. Lishogi, an open source online shogi server, primarily uses YaneuraOu for its analysis and AI opponent features.
See also elmo (shogi engine), which uses YaneuraOu's search functions List of shogi software#Engines
Further reading
やねうら王 on Japanese Wikipedia
References
External links Official X account Official YouTube channel