[Event "SUI-chT Nimzowitsch-Luzern"] [Site "?"] [Date "2022.05.15"] [Round "2.2"] [White "Sacha, Georges"] [Black "Atlas, Valery"] [Result "0-1"] [ECO "E14"] [WhiteElo "2254"] [BlackElo "2424"] [Annotator "Walter Eigenmann"] [SetUp "1"] [FEN "r3r1k1/pb1n4/1p1p1qpp/2pP1p2/2P1pP2/1P2P1N1/P1B3PP/1R1Q1RK1 b - - 0 21"] [PlyCount "11"] [SourceVersionDate "2022.05.15"] 21... b5 $1 22. Qc1 Nb6 (22... a5 $5) 23. Bd1 b4 (23... Reb8 $5) 24. Nh1 h5 25. Nf2 a5 26. Nh3 $2 (26. a4 $142 $11) 26... a4 $17 0-1