r1bk1rn1/2p2ppp/1pn4q/4p3/1bpP1PP1/1PB1PN2/PQ5P/RN2KB1R b KQ - 0 16
FEN state: r1bk1rn1/2p2ppp/1pn4q/4p3/1bpP1PP1/1PB1PN2/PQ5P/RN2KB1R b KQ - 0 16 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black rook at f8 and black knight at g8. Black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black knight at c6 and black queen at h6. Black pawn at e5. Black bishop at b4, black pawn at c4, white pawn at d4, white pawn at f4 and white pawn at g4. White pawn at b3, white bishop at c3, white pawn at e3 and white knight at f3. White pawn at a2, white queen at b2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 16. Black to move.