Tactic 0123

[Event "ICC Blitz"]
[White "jbennett"]
[Black "RunkaDunka"]
[Result "*"]
[Annotator "JB"]
[SetUp "1"]
[FEN "2k4r/pb1p1pp1/1p2p3/3Pn3/7q/2P4P/P1BQ1PP1/R4RK1 b - - 0 20"]

{Black to move, white just played Bc2. }
{Second best is Qxh3 (-0.63) best is Nf3+ (leads to mate). }
1... Nf3+ {Qxh3 wins a pawn, since gxh3 is met by Nf3+, forking the }
{king and queen. But the immediate Nf3+ is stronger. }
2. gxf3 {If the king moves, then black wins a queen. }
2... Qxh3
3. Bh7 Rxh7
4. Qh6 gxh6
5. dxe6 Rg7#
*