rn1k1bnr/pb1pq1p1/7p/2p1pp2/2P5/NP2P1PN/P2P1P1P/1RB1KB1R b K - 0 10
FEN state: rn1k1bnr/pb1pq1p1/7p/2p1pp2/2P5/NP2P1PN/P2P1P1P/1RB1KB1R b K - 0 10 ; Best move: b7h1
The current state of the chess board is: Black rook at a8, black knight at b8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black queen at e7 and black pawn at g7. Black pawn at h6. Black pawn at c5, black pawn at e5 and black pawn at f5. White pawn at c4. White knight at a3, white pawn at b3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.