Chess puzzle (Checkmate)
Opening: Van_Geet_Opening, Van_Geet_Opening_Other_variations
Moves: 1. Nc3 c5 2. Nf3 e6 3. d4 Nc6 4. d5 exd5 5. Nxd5 Nge7 6. e4 g6 *
Position (FEN): r1bqkb1r/pp1pnp1p/2n3p1/2pN4/4P3/5N2/PPP2PPP/R1BQKB1R w KQkq - 0 7
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 1188
Best move: Nf6#