3qkbn1/rppnppp1/3p3r/PB5p/4P3/PbN2Q1N/2PP1PPP/R1B1KR2 w Q - 1 10
FEN state: 3qkbn1/rppnppp1/3p3r/PB5p/4P3/PbN2Q1N/2PP1PPP/R1B1KR2 w Q - 1 10 ; Best move: c2b3
The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black rook at a7, black pawn at b7, black pawn at c7, black knight at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at d6 and black rook at h6. White pawn at a5, white bishop at b5 and black pawn at h5. White pawn at e4. White pawn at a3, black bishop at b3, white knight at c3, white queen at f3 and white knight at h3. White pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 1. Full move number is 10. White to move.