1nr1kbnr/1b3pp1/q1p4p/pNppp1N1/1PP3PP/4PP2/P2PK3/R1BB3R b k - 0 21
FEN state: 1nr1kbnr/1b3pp1/q1p4p/pNppp1N1/1PP3PP/4PP2/P2PK3/R1BB3R b k - 0 21 ; Best move: c6b5
The current state of the chess board is: Black knight at b8, black rook at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at f7 and black pawn at g7. Black queen at a6, black pawn at c6 and black pawn at h6. Black pawn at a5, white knight at b5, black pawn at c5, black pawn at d5, black pawn at e5 and white knight at g5. White pawn at b4, white pawn at c4, white pawn at g4 and white pawn at h4. White pawn at e3 and white pawn at f3. White pawn at a2, white pawn at d2 and white king at e2. White rook at a1, white bishop at c1, white bishop at d1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.