Chess puzzle (Equality)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. g4 b5 8. f3
Bb7 9. Be3 Be7 10. Qd2 O-O 11. a3 Qc7 12. O-O-O Nc6 13. Nxc6 Bxc6 14. h4 Qb7
15. h5 a5 16. g5 b4 17. Nb1 bxa3 *
Position (FEN): r4rk1/1q2bppp/2bppn2/p5PP/4P3/p3BP2/1PPQB3/1NKR3R w - - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1425
Best move: Nxa3