r1bq2nr/B1ppk1bp/1pn3p1/4pp2/3PPP2/2P4P/PP4P1/RN1QKBNR b Q - 0 10
FEN state: r1bq2nr/B1ppk1bp/1pn3p1/4pp2/3PPP2/2P4P/PP4P1/RN1QKBNR b Q - 0 10 ; Best move: e7f8
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. White bishop at a7, black pawn at c7, black pawn at d7, black king at e7, black bishop at g7 and black pawn at h7. Black pawn at b6, black knight at c6 and black pawn at g6. Black pawn at e5 and black pawn at f5. White pawn at d4, white pawn at e4 and white pawn at f4. White pawn at c3 and white pawn at h3. White pawn at a2, white pawn at b2 and white pawn at g2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 10. Black to move.