Chess puzzle (Checkmate)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Other_variations
Moves: 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 e6 5. cxd5 cxd5 6. Bf4 Nc6 7. e3 Bb4 8. Bb5
Ne4 9. Rc1 Qa5 10. Bxc6+ bxc6 11. Qb3 Ba6 12. Ne5 f6 13. Nxc6 Qb5 14. Nxb4 Nxc3
15. Nxa6 *
Position (FEN): r3k2r/p5pp/N3pp2/1q1p4/3P1B2/1Qn1P3/PP3PPP/2R1K2R b Kkq - 0 15
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 837
Best move: Qe2#