r1b1qk1r/2p3bp/pp2Pnp1/8/1nPPpP1P/P4N2/1P1BP3/RN2KBR1 b Q - 0 16
FEN state: r1b1qk1r/2p3bp/pp2Pnp1/8/1nPPpP1P/P4N2/1P1BP3/RN2KBR1 b Q - 0 16 ; Best move: b4c2
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8, black king at f8 and black rook at h8. Black pawn at c7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, white pawn at e6, black knight at f6 and black pawn at g6. Black knight at b4, white pawn at c4, white pawn at d4, black pawn at e4, white pawn at f4 and white pawn at h4. White pawn at a3 and white knight at f3. White pawn at b2, white bishop at d2 and white pawn at e2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 16. Black to move.