Chess puzzle (Checkmate)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bf4 c5 5. e3 Ne4 6. Qc2 Qa5 7. Ne2 cxd4 8.
exd4 d5 9. cxd5 exd5 10. a3 Nc6 11. Rd1 Bf5 12. axb4 Nxb4 13. Qa4+ Qxa4 14.
Nxa4 *
Position (FEN): r3k2r/pp3ppp/8/3p1b2/Nn1PnB2/8/1P2NPPP/3RKB1R b Kkq - 0 14
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 977
Best move: Nc2#