[Event "Start Analysis Engine to see Solution No. 561 Tactic: Chess, Puzzels"] [Site "Cleanchess.com"] [Date "2015.07.01"] [Round "0"] [White "Mate in two"] [Black "White to move"] [FEN "r1b2r1k/ppb1qp1p/2p3pQ/4n3/1PB1N3/P3P3/1B1P2PP/R6K w - - 0 1"] 1.Nf6 { threatening Qxh7No. (No. 1) } 1...a5 ( 1...Qxf6 ) *