Chess puzzle (Advantage)
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Qf3 Nc6 6. Ne2 Nb4 7. O-O Nxd3 8.
Qxd3 Ne7 9. Bf4 c6 10. Nd2 Bf5 11. Qb3 Bxf4 12. Nxf4 Qc7 13. Nd3 Bxd3 14. Qxd3
O-O-O 15. Rfe1 Ng6 16. b4 Rhe8 17. b5 Rxe1+ 18. Rxe1 cxb5 19. Qxb5 Qxc2 *
Position (FEN): 2kr4/pp3ppp/6n1/1Q1p4/3P4/8/P1qN1PPP/4R1K1 w - - 0 20
White to move.
Themes: Defensive Move Endgame  
Puzzle rating: 1813
Best move: Nb3