Chess puzzle (Equality)
Moves: 1. e4 e5 2. Bc4 Nf6 3. Nc3 Nxe4 4. Nxe4 d5 5. Bxd5 Qxd5 6. f3 Bc5 7. d3 Bxg1 8.
Rxg1 O-O 9. Qe2 f5 10. Nc3 Qc6 11. Be3 e4 12. fxe4 fxe4 13. Nxe4 Na6 14. O-O-O
Nb4 15. a3 *
Position (FEN): r1b2rk1/ppp3pp/2q5/8/1n2N3/P2PB3/1PP1Q1PP/2KR2R1 b - - 0 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 2133
Best move: Bg4