2q2bnr/rpp1pkpp/p3bp2/3p4/3B4/P6P/1PP1PPPR/RN1QKBN1 w Q - 1 10
FEN state: 2q2bnr/rpp1pkpp/p3bp2/3p4/3B4/P6P/1PP1PPPR/RN1QKBN1 w Q - 1 10 ; Best move: d4a7
The current state of the chess board is: Black queen at c8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at c7, black pawn at e7, black king at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black bishop at e6 and black pawn at f6. Black pawn at d5. White bishop at d4. White pawn at a3 and white pawn at h3. White pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 10. White to move.