Tactic 0203

[Event "ICC Blitz"]
[White "jbennett"]
[Black "Imaginator"]
[Result "*"]
[Annotator "JB"]
[SetUp "1"]
[FEN "2r1k2r/p3bppp/1n2p3/3nP3/3P4/2N2N2/2RB1PPP/2R3K1 b k - 0 19"]

{Black to move, white just played Rfc1. }
{Second best is Ba3 (-0.42), best is Nb4 (-1.51) }
1... Nb4
2. Rb2 {Only move for this rook, but it sets up a knight fork. }
2... Nd3
3. Rxb6 Nxc1
4. Rb2 a5 {Create an escape square for the knight. }
5. Kf1 Nd3
6. Rb7
*