Chess puzzle (Checkmate)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Leningrad_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 exd5 6. cxd5 Bxc3+ 7. bxc3 d6 8.
Rb1 Bf5 9. Rb2 Nbd7 10. Rxb7 Qa5 11. Qb3 O-O 12. Nf3 c4 13. Qb2 Qxd5 14. Bxf6
Nxf6 15. g3 Bc2 16. Bg2 *
Position (FEN): r4rk1/pR3ppp/3p1n2/3q4/2p5/2P2NP1/PQb1PPBP/4K2R b K - 2 16
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 476
Best move: Qd1#