Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O a6 5. Ba4 b5 6. Bb3 Bc5 7. d3 O-O 8. c3
d6 9. d4 exd4 10. cxd4 Ba7 11. Bg5 Ne5 *
Position (FEN): r1bq1rk1/b1p2ppp/p2p1n2/1p2n1B1/3PP3/1B3N2/PP3PPP/RN1Q1RK1 w - - 3 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1294
Best move: dxe5