Chess puzzle (Crushing)
Opening: Pirc_Defense, Pirc_Defense_Other_variations
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 Bg7 5. Bd3 O-O 6. Nf3 Bg4 7. O-O Nbd7 8. h3
Bxf3 9. Qxf3 e5 10. d5 Ne8 11. a4 Nc5 12. Qe2 f5 13. exf5 gxf5 14. Bxc5 dxc5
15. Bc4 Kh8 16. Rad1 Nd6 17. Ba2 a6 18. Qh5 f4 19. f3 *
Position (FEN): r2q1r1k/1pp3bp/p2n4/2pPp2Q/P4p2/2N2P1P/BPP3P1/3R1RK1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1134
Best move: Rf5