Chess puzzle (Equality)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bg5 Bg7 7. Qd2 h6 8. Bh4
a6 9. O-O-O b5 10. f4 Bb7 11. f5 g5 12. Bg3 Nxe4 *
Position (FEN): rn1qk2r/1b2ppb1/p2p3p/1p3Pp1/3Nn3/2N3B1/PPPQ2PP/2KR1B1R w kq - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1223
Best move: Nxe4