1nbq1b1r/B1pkp2p/p2p1p2/1p4p1/6n1/N1PP2P1/PP1QPP1P/1R2KBNR b K - 2 10
FEN state: 1nbq1b1r/B1pkp2p/p2p1p2/1p4p1/6n1/N1PP2P1/PP1QPP1P/1R2KBNR b K - 2 10 ; Best move: c8b7
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at h8. White bishop at a7, black pawn at c7, black king at d7, black pawn at e7 and black pawn at h7. Black pawn at a6, black pawn at d6 and black pawn at f6. Black pawn at b5 and black pawn at g5. Black knight at g4. White knight at a3, white pawn at c3, white pawn at d3 and white pawn at g3. White pawn at a2, white pawn at b2, white queen at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 10. Black to move.