2b1k2r/1pp1n1pN/2rpp3/p3qp1P/PnP1PP1P/1PP1KQ2/2B5/RNB4R b k - 4 18
FEN state: 2b1k2r/1pp1n1pN/2rpp3/p3qp1P/PnP1PP1P/1PP1KQ2/2B5/RNB4R b k - 4 18 ; Best move: b4c2
The current state of the chess board is: Black bishop at c8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at c7, black knight at e7, black pawn at g7 and white knight at h7. Black rook at c6, black pawn at d6 and black pawn at e6. Black pawn at a5, black queen at e5, black pawn at f5 and white pawn at h5. White pawn at a4, black knight at b4, white pawn at c4, white pawn at e4, white pawn at f4 and white pawn at h4. White pawn at b3, white pawn at c3, white king at e3 and white queen at f3. White bishop at c2. White rook at a1, white knight at b1, white bishop at c1 and white rook at h1. Black kingside is the only castle move available. Half move number is 4. Full move number is 18. Black to move.