Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_London_System
Moves: 1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 4. e3 Nc6 5. c3 Qb6 6. Na3 Qxb2 7. Nb5 e5 8. Nxe5
Nxe5 9. Bxe5 Ne4 10. Rb1 *
Position (FEN): r1b1kb1r/pp3ppp/8/1NppB3/3Pn3/2P1P3/Pq3PPP/1R1QKB1R b Kkq - 2 10
Black to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 1334
Best move: Qxf2#