Les Noirs donnent échec en a5

   [Event ""]  [Site "Hastings"]  [Date "1923"]  [Round ""]  [White "Norman, George Marshall"]  [Black "Euwe, Max"]  [Result "0-1"]  [ECO "D61"]  [SetUp "1"]  [FEN "r4rk1/2q1bpp1/p3p2p/1pn5/4b3/P3PNB1/1P2BPPP/1Q1RK2R b K - 0 17"]  [PlyCount "1"]  [EventDate "1923"]  [EventType "tourn"]  [EventRounds "9"]  [EventCountry "ENG"]  [Source "ChessBase"]  [SourceDate "1999.07.01"]  [WhiteTeamCountry "CSR"]  [BlackTeamCountry "GER"]   17... Qa5+ 0-1