Chess puzzle (Checkmate)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Zinnowitz_Variation
Moves: 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Nf3 O-O 6. Bg5 c5 7. e5 dxe5 8. dxe5
Qxd1+ 9. Rxd1 Nfd7 10. Bxe7 Re8 11. Bd6 Nc6 12. Nd5 Ncxe5 13. Nc7 *
Position (FEN): r1b1r1k1/ppNn1pbp/3B2p1/2p1n3/2P5/5N2/PP3PPP/3RKB1R b K - 1 13
Black to move.
Themes: Double Check Middlegame Mate in 1 
Puzzle rating: 1053
Best move: Nxf3#