[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "White to move"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "r4rk1/1p1bppbp/p2p2p1/q3n3/2P1P3/1PN1BP2/P1NQ2PP/R2R2K1 w - - 0 16"] [PlyCount "5"] [EventDate "2012.12.31"] [SourceTitle "playchess.com"] {} 16. Nd5 {now both the Q on a6 and the pawn on e7 are attacked} Qxd2 { the obvious move now is to retake the queen immediately but...} (16... Qd8 { to defend the e7 pawn} 17. Bb6 Qe8 18. Nc7) 17. Nxe7+ {a sneaky in between move (a zwischenzug) that works because it is check} Kh8 18. Rxd2 {White has won a very important pawn. (Note that in this final postion, it is important the the rook on a1 is defended by the knight on c2 or else Nxf3 or Nxc4 would be very strong for black. Did you see this? Quite often when this tactic arises the white rook is already on c1 so white does not have to worry about the rook being attacked.)} *