Chess puzzle (Checkmate)
Opening: English_Opening, English_Opening_Symmetrical_Variation
Moves: 1. c4 c5 2. Nc3 e6 3. d3 a6 4. g3 d5 5. cxd5 exd5 6. Bg2 d4 7. Nd5 g5 8. Qb3
Be6 9. Qa4+ Nc6 10. Qb3 Nge7 *
Position (FEN): r2qkb1r/1p2np1p/p1n1b3/2pN2p1/3p4/1Q1P2P1/PP2PPBP/R1B1K1NR w KQkq - 6 11
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 990
Best move: Nf6#