Chess puzzle (Advantage)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nf3 Qd8 4. Be2 Nf6 5. O-O c6 6. h3 Bf5 7. d4 e6 8. c3
Bd6 9. Be3 Nbd7 10. Nbd2 Nb6 11. Nh2 Nbd5 12. Ng4 Bc7 13. c4 Ne7 14. f4 Ne4 15.
Nxe4 Bxe4 16. Ne5 Nf5 17. Bf2 Qf6 18. b4 O-O-O 19. Qb3 Nxd4 20. Bxd4 Rxd4 21.
b5 Bb6 22. Kh1 c5 23. a4 Rhd8 *
Position (FEN): 2kr4/pp3ppp/1b2pq2/1Pp1N3/P1PrbP2/1Q5P/4B1P1/R4R1K w - - 1 24
White to move.
Themes:  Middlegame  
Puzzle rating: 1601
Best move: a5