Chess puzzle (Equality)
Moves: 1. c4 Nf6 2. d4 g6 3. f3 Bg7 4. e4 d6 5. Nc3 Nc6 6. Be3 e5 7. d5 Ne7 8. Qd2 c6
9. Bd3 cxd5 10. exd5 Bf5 11. Ne4 O-O 12. g4 Nxg4 *
Position (FEN): r2q1rk1/pp2npbp/3p2p1/3Ppb2/2P1N1n1/3BBP2/PP1Q3P/R3K1NR w KQ - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1605
Best move: fxg4