rn1qkb2/p3pppr/b1pp1n1p/8/PpB5/1QP1P2P/1P1PKPPR/RNB3N1 w q - 0 9
FEN state: rn1qkb2/p3pppr/b1pp1n1p/8/PpB5/1QP1P2P/1P1PKPPR/RNB3N1 w q - 0 9 ; Best move: c4a6
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black bishop at a6, black pawn at c6, black pawn at d6, black knight at f6 and black pawn at h6. White pawn at a4, black pawn at b4 and white bishop at c4. White queen at b3, white pawn at c3, white pawn at e3 and white pawn at h3. White pawn at b2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1 and white knight at g1. Black queenside is the only castle move available. Half move number is 0. Full move number is 9. White to move.