1n3k1r/rb1pqnpp/1p6/2p2p2/2PP2PQ/b3PNRP/P4P2/R1B1KB2 b Q - 2 16
FEN state: 1n3k1r/rb1pqnpp/1p6/2p2p2/2PP2PQ/b3PNRP/P4P2/R1B1KB2 b Q - 2 16 ; Best move: a3b4
The current state of the chess board is: Black knight at b8, black king at f8 and black rook at h8. Black rook at a7, black bishop at b7, black pawn at d7, black queen at e7, black knight at f7, black pawn at g7 and black pawn at h7. Black pawn at b6. Black pawn at c5 and black pawn at f5. White pawn at c4, white pawn at d4, white pawn at g4 and white queen at h4. Black bishop at a3, white pawn at e3, white knight at f3, white rook at g3 and white pawn at h3. White pawn at a2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 2. Full move number is 16. Black to move.