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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The source code is written in C#: https://github.com/SebLague/Chess-AI
I must say that stockfish page there is kinda old. So, techniques that were removed : razoring, Internal Iterative Deepening; Heuristics that were introduced : capture history, pruning based on it, multi-cut, low ply history, depth reductions for Pvs w/o transposition table move, last captures extension, etc; Actually it's kinda interesting to read what it says for LMR, because it's more or less "classical" approach. https://www.chessprogramming.org/Late_Move_Reductions So, common conditions of when to not do it: Tactical Moves (captures and promotions) Moves while in check Moves which give check Moves that cause a search extension Anytime in a PV-Node in a PVS search Depth < 3 (sometimes depth < 2) Stockfish violates basically all of this, https://github.com/official-stockfish/Stockfish/blob/master/src/search.cpp#L1167 :)