r1qk2nr/1n3p2/pppppPpp/8/P2P3Q/2NB3P/1PP2P2/NRB1K2R b K - 4 23
FEN state: r1qk2nr/1n3p2/pppppPpp/8/P2P3Q/2NB3P/1PP2P2/NRB1K2R b K - 4 23 ; Best move: c6c5
The current state of the chess board is: Black rook at a8, black queen at c8, black king at d8, black knight at g8 and black rook at h8. Black knight at b7 and black pawn at f7. Black pawn at a6, black pawn at b6, black pawn at c6, black pawn at d6, black pawn at e6, white pawn at f6, black pawn at g6 and black pawn at h6. White pawn at a4, white pawn at d4 and white queen at h4. White knight at c3, white bishop at d3 and white pawn at h3. White pawn at b2, white pawn at c2 and white pawn at f2. White knight at a1, white rook at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 23. Black to move.