Tactic 0177

[Event "ICC Blitz"]
[White "jbennett"]
[Black "dorsnorXL"]
[Result "*"]
[Annotator "JB"]
[SetUp "1"]
[FEN "8/2pR2bk/p1r3qp/1p6/5n2/1R5P/P5P1/5Q1K b - - 0 39"]

{Black to move, white just played Qf1. }
{Second best is Rc2 (-5.61), best is Rc1 (leads to mate). }
{There are many good moves here, including Nxg2, Nh5, and Qe4. }
{But Rc1 is clearly the strongest. }
1... Rc1!
2. Rxg7+ {Of course, if Qxc1, then Qxg2#. }
2... Qxg7
3. Kh2 {If Rb1, then Rxb1, and if Rb2, then Rxf1+. }
3... Rxf1
*