Chess puzzle (Checkmate)
Opening: Zukertort_Opening, Zukertort_Opening_Nimzo-Larsen_Variation
Moves: 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. e4 d6 5. d4 Bg4 6. e5 dxe5 7. Qd3 e4 8. Qb5+
c6 9. Qxb7 Nbd7 10. Ne5 Nxe5 11. dxe5 *
Position (FEN): r2qk2r/pQ2ppbp/2p2np1/4P3/4p1b1/1P6/PBP2PPP/RN2KB1R b KQkq - 0 11
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1017
Best move: Qd1#