rn1q1k1r/p1ppbp1p/Qp2pn2/6pP/1P6/P1P2N1R/3PPPP1/RNB1KB2 b Q - 0 9
FEN state: rn1q1k1r/p1ppbp1p/Qp2pn2/6pP/1P6/P1P2N1R/3PPPP1/RNB1KB2 b Q - 0 9 ; Best move: b8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black bishop at e7, black pawn at f7 and black pawn at h7. White queen at a6, black pawn at b6, black pawn at e6 and black knight at f6. Black pawn at g5 and white pawn at h5. White pawn at b4. White pawn at a3, white pawn at c3, white knight at f3 and white rook at h3. White pawn at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 9. Black to move.