rnb3nr/ppppqk2/3bppp1/1N5p/1P1P1P1P/3R4/P1P1P1P1/R1BQKBN1 b Q - 1 8
FEN state: rnb3nr/ppppqk2/3bppp1/1N5p/1P1P1P1P/3R4/P1P1P1P1/R1BQKBN1 b Q - 1 8 ; Best move: d6b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black queen at e7 and black king at f7. Black bishop at d6, black pawn at e6, black pawn at f6 and black pawn at g6. White knight at b5 and black pawn at h5. White pawn at b4, white pawn at d4, white pawn at f4 and white pawn at h4. White rook at d3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at g2. 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 1. Full move number is 8. Black to move.