Chess puzzle (Advantage)
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. Nf3 Bf5 5. Nc3 Nc6 6. a3 e6 7. Bg5 Be7 8.
Bxe7 Qxe7 9. Qb3 O-O-O 10. e4 Nxc3 11. bxc3 Bg4 12. Be2 e5 13. Rd1 exd4 14.
cxd4 Bxf3 15. Bxf3 Rxd4 16. O-O Rhd8 17. Rb1 Na5 18. Qc3 b6 19. Bg4+ Kb8 20. h3
Qxe4 *
Position (FEN): 1k1r4/p1p2ppp/1p6/n7/3rq1B1/P1Q4P/5PP1/1R3RK1 w - - 0 21
White to move.
Themes: Pin Middlegame  
Puzzle rating: 1620
Best move: Qxa5