Chess puzzle (Checkmate)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 c5 5. dxc5 Na6 6. a3 Bxc3 7. Bxc3 Nxc5 8.
g3 Nce4 9. Qc2 O-O 10. Bg2 d5 11. Rd1 Qb6 12. Bxf6 *
Position (FEN): r1b2rk1/pp3ppp/1q2pB2/3p4/2P1n3/P5P1/1PQ1PPBP/3RK1NR b K - 0 12
Black to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1228
Best move: Qxf2#