Chess puzzle (Advantage)
Moves: 1. e4 d6 2. Bc4 Nf6 3. d3 Nbd7 4. a3 e5 5. f4 Be7 6. Nc3 c6 7. Nf3 Qc7 8. O-O
b5 9. Ba2 O-O 10. f5 Bb7 11. Qe1 a6 12. Kh1 d5 13. Qh4 a5 14. g4 b4 15. g5 bxc3
16. gxf6 Nxf6 17. Rg1 dxe4 18. Bg5 Qd6 19. dxe4 c5 20. Rad1 Bxe4 *
Position (FEN): r4rk1/4bppp/3q1n2/p1p1pPB1/4b2Q/P1p2N2/BPP4P/3R2RK w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1639
Best move: Rxd6