3qkb1r/rbpppp1p/2n5/pp4pn/PP4P1/5P1N/2PPP1BP/RNBQ1RK1 w k - 0 10
FEN state: 3qkb1r/rbpppp1p/2n5/pp4pn/PP4P1/5P1N/2PPP1BP/RNBQ1RK1 w k - 0 10 ; Best move: a4b5
The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black bishop at b7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black knight at c6. Black pawn at a5, black pawn at b5, black pawn at g5 and black knight at h5. White pawn at a4, white pawn at b4 and white pawn at g4. White pawn at f3 and white knight at h3. White pawn at c2, white pawn at d2, white pawn at e2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white rook at f1 and white king at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 10. White to move.