Tactic 0013

[Event "ICC Blitz"]
[White "jbennett"]
[Black "whisky1"]
[Result "*"]
[Annotator "JB"]
[SetUp "1"]
[FEN "r1b1r1k1/pp1n1ppp/2p2n2/q2pN3/3P1B2/2PB1Q2/P1P1RPPP/4R1K1 w - - 0 17"]

{White to move, black just played Qa5 }
{Second best is Qg3 (1.93) best is Nxf7 (4.10) }
{There are a number of comparable second best moves, }
{including Bg5, a3, and h3. }
{Notice that if black follows up with Qxc3, }
{then Bxh7+ wins the queen. }
1. Nxf7 Re4 {If Kxf7, then Rxe8 and black is in trouble. }
{Notice that Nxe8 is met by Bc7+, winning the queen. }
2. Nd6 {If Bxe4, then dxe4 followed by Kxf7, }
{and black has two pieces for the rook. }
2... Nc5 {If Rxe2, then Qxe2, and mate is threatened on e8 }
{Nc5 makes room for the defensive maneuver Bd7 }
3. Nxc8 Rxe2
4. Rxe2 Rxc8
5. dxc5 Qxa2
6. Re1
*