Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Nyezhmetdinov-Rossolimo_Attack
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. d4 cxd4 5. Nxd4 Qa5+ 6. Bd2 Qb6 7. Nxc6 bxc6
8. Bd3 Qxb2 9. Bc3 Qb6 10. Qg4 Nf6 11. Bxf6 gxf6 12. Nd2 Bb4 13. Rd1 Qa5 14.
Qg7 Rf8 15. Qxf6 Qxa2 *
Position (FEN): r1b1kr2/p2p1p1p/2p1pQ2/8/1b2P3/3B4/q1PN1PPP/3RK2R w Kq - 0 16
White to move.
Themes:  Middlegame  
Puzzle rating: 1873
Best move: Ra1