Chess puzzle (Advantage)
Opening: Pirc_Defense, Pirc_Defense_Byrne_Variation
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. Qd2 h6 6. O-O-O *
Position (FEN): rnbqk2r/ppp1ppb1/3p1npp/6B1/3PP3/2N5/PPPQ1PPP/2KR1BNR b kq - 1 6
Black to move.
Themes:  Opening  
Puzzle rating: 1453
Best move: hxg5