Chess puzzle (Checkmate)
Opening: Slav_Defense, Slav_Defense_Three_Knights_Variation
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. cxd5 Nxd5 6. Qb3 Nb6 7. e4 Bg6 8.
Be3 e6 9. Rd1 Be7 10. Ne5 O-O 11. h4 Bxh4 12. Nxg6 hxg6 13. a4 a5 14. d5 cxd5
15. Bxb6 Qf6 16. exd5 exd5 17. Nxd5 Re8+ 18. Be3 *
Position (FEN): rn2r1k1/1p3pp1/5qp1/p2N4/P6b/1Q2B3/1P3PP1/3RKB1R b K - 2 18
Black to move.
Themes: Attacking f2 or f7, Pin Opening Mate in 1 
Puzzle rating: 1670
Best move: Qxf2#