rnbq2nr/Rppp1pkp/8/4p1pP/8/P1N5/1PPPPPPb/R1BQKBN1 w Q - 3 10
FEN state: rnbq2nr/Rppp1pkp/8/4p1pP/8/P1N5/1PPPPPPb/R1BQKBN1 w Q - 3 10 ; Best move: a7a8
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. White rook at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black king at g7 and black pawn at h7. Black pawn at e5, black pawn at g5 and white pawn at h5. White pawn at a3 and white knight at c3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2, white pawn at g2 and black bishop at h2. White rook at a1, white bishop at c1, 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 3. Full move number is 10. White to move.