Chess puzzle (Advantage)
Moves: 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4 b6 5. b5 Ne7 6. a4 Nf5 7. Bb2 d4 8. Bd3 Ne7
9. O-O Bb7 10. Na3 Nd5 11. Nc4 Qc7 12. a5 bxa5 13. Nxa5 Nd7 14. Nxb7 Qxb7 15.
Be4 Qxb5 16. Bxd5 exd5 17. e6 fxe6 18. Rb1 Qc6 19. Re1 Nf6 20. Ne5 Qd6 21. c4
Be7 22. cxd5 exd5 *
Position (FEN): r3k2r/p3b1pp/3q1n2/2ppN3/3p4/8/1B1P1PPP/1R1QR1K1 w kq - 0 23
White to move.
Themes:  Middlegame  
Puzzle rating: 1143
Best move: Qa4+