Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 e6 3. g3 a6 4. Bg2 Nc6 5. d3 d6 6. f4 Be7 7. Bd2 Nf6 8. Nge2 h6
9. O-O Qb6 10. Na4 Qa7 11. Kh1 b5 12. Nac3 Nd4 13. e5 dxe5 14. Bxa8 *
Position (FEN): B1b1k2r/q3bpp1/p3pn1p/1pp1p3/3n1P2/2NP2P1/PPPBN2P/R2Q1R1K b k - 0 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1235
Best move: Qxa8+