2b2bnr/r2pp3/n1p2kpp/pNP2p1P/5PP1/R7/PP1PQ3/R1B1KB2 b Q - 0 21
FEN state: 2b2bnr/r2pp3/n1p2kpp/pNP2p1P/5PP1/R7/PP1PQ3/R1B1KB2 b Q - 0 21 ; Best move: g6h5
The current state of the chess board is: Black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at d7 and black pawn at e7. Black knight at a6, black pawn at c6, black king at f6, black pawn at g6 and black pawn at h6. Black pawn at a5, white knight at b5, white pawn at c5, black pawn at f5 and white pawn at h5. White pawn at f4 and white pawn at g4. White rook at a3. White pawn at a2, white pawn at b2, white pawn at d2 and white queen at e2. White rook at a1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.