r1b2br1/3p2pp/2np2kn/pP3pq1/2PP4/1P5N/1Q2PPPP/R2K1BR1 b - - 4 16
FEN state: r1b2br1/3p2pp/2np2kn/pP3pq1/2PP4/1P5N/1Q2PPPP/R2K1BR1 b - - 4 16 ; Best move: g5f6
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at g8. Black pawn at d7, black pawn at g7 and black pawn at h7. Black knight at c6, black pawn at d6, black king at g6 and black knight at h6. Black pawn at a5, white pawn at b5, black pawn at f5 and black queen at g5. White pawn at c4 and white pawn at d4. White pawn at b3 and white knight at h3. White queen at b2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 16. Black to move.