Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3 Nc6 5. d5 Nd4 6. Nge2 e5 7. g3 *
Position (FEN): r1bqk1nr/pp1p1pbp/6p1/2pPp3/3nP3/2N1B1P1/PPP1NP1P/R2QKB1R b KQkq - 0 7
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1200
Best move: Nf3#