rnb1kbn1/p3ppp1/Bp5r/3p3p/8/P4K1P/NPPP2P1/R1BQ2NR w q - 0 10
FEN state: rnb1kbn1/p3ppp1/Bp5r/3p3p/8/P4K1P/NPPP2P1/R1BQ2NR w q - 0 10 ; Best move: a6c8
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at e7, black pawn at f7 and black pawn at g7. White bishop at a6, black pawn at b6 and black rook at h6. Black pawn at d5 and black pawn at h5. White pawn at a3, white king at f3 and white pawn at h3. White knight at a2, white pawn at b2, white pawn at c2, white pawn at d2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 10. White to move.