Alapin may refer to: Semyon Alapin, chess master (1856–1923) Sicilian Defence, Alapin Variation (1.e4 c5 2.c3) Alapin-Diemer Gambit (1.e4 e6 2.d4 d5 3.Be3) Alapin's Opening (1.e4 e5 2.Ne2)
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).