Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. c4 b6 5. cxd5 Nxd5 6. Nc3 Nf6 7. Qa4+ Bd7 8.
Bb5 c6 9. Be2 c5 10. Bb5 cxd4 11. exd4 a6 12. Ne5 Bxb5 13. Nxb5 Nfd7 14. Nxd7
Qxd7 15. O-O *
Position (FEN): rn2kb1r/3q1ppp/pp2p3/1N6/Q2P4/8/PP3PPP/R1B2RK1 b kq - 1 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1295
Best move: Qxb5