Tactic 0144

[Event "ICC Blitz"]
[White "elcapa"]
[Black "jbennett"]
[Result "*"]
[Annotator "JB"]
[SetUp "1"]
[FEN "r1b2rkb/pp1q3p/6pP/3nppB1/2BpN3/P2P4/1PP2PP1/R2Q1RK1 w - f6 0 17"]

{White to move, black just played f5. }
{There are two good moves in this position. }
{Second best is Nc5 (1.95), best is Qf3 (3.34) }
1. Qf3 {Nc5 is also interesting: }
(1. Nc5 Qc6
2. Qf3 Qxc5
3. Qxd5+ Qxd5
4. Bxd5+ Rf7 {Only legal move, since the king can't move. }
)
1... fxe4
2. Qxe4 {Increasing pressure on the pinned knight. }
2... Rf7
3. Qxd5 Qxd5
4. Bxd5 Bf5
5. f4 Re8
6. Bxf7+ Kxf7
7. fxe5
*