rnb1kbr1/1pp1qppn/B2pp3/7p/1P3P2/2N1P2N/P1PP1KPP/R1BQ3R b q - 5 9
FEN state: rnb1kbr1/1pp1qppn/B2pp3/7p/1P3P2/2N1P2N/P1PP1KPP/R1BQ3R b q - 5 9 ; Best move: b8a6
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 rook at g8. Black pawn at b7, black pawn at c7, black queen at e7, black pawn at f7, black pawn at g7 and black knight at h7. White bishop at a6, black pawn at d6 and black pawn at e6. Black pawn at h5. White pawn at b4 and white pawn at f4. White knight at c3, white pawn at e3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, white king at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 9. Black to move.