Chess puzzle (Checkmate)
Moves: 1. c4 e5 2. Nc3 Nf6 3. e4 Bb4 4. Nge2 Nc6 5. d3 Nd4 6. g3 *
Position (FEN): r1bqk2r/pppp1ppp/5n2/4p3/1bPnP3/2NP2P1/PP2NP1P/R1BQKB1R b KQkq - 0 6
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1243
Best move: Nf3#