Chess puzzle (Checkmate)
Opening: Dutch_Defense, Dutch_Defense_Queens_Knight_Variation
Moves: 1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. e3 c6 5. Bd3 d5 6. cxd5 cxd5 7. Nge2 Bb4 8. a3
Ba5 9. b4 Bc7 10. Bb2 O-O 11. O-O Qd6 12. Qc2 *
Position (FEN): rnb2rk1/ppb3pp/3qpn2/3p1p2/1P1P4/P1NBP3/1BQ1NPPP/R4RK1 b - - 6 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 570
Best move: Qxh2#