Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. O-O d5 5. Bb3 Nc6 6. Re1 Bc5 7. Re2 Bg4 8.
d3 Nf6 9. Ba4 e4 10. dxe4 dxe4 11. Rd2 Qe7 12. Bxc6+ bxc6 13. Re2 O-O 14. Bg5
Rfe8 15. Nc3 h6 16. Bxf6 Qxf6 17. Nxe4 Qf5 18. Ned2 Rxe2 19. Qxe2 Qxc2 20. Qc4
Qxb2 *
Position (FEN): r5k1/p1p2pp1/2p4p/2b5/2Q3b1/5N2/Pq1N1PPP/R5K1 w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1526
Best move: Rb1