rnbk2nr/pppp1pp1/3bp2p/8/2P1PPB1/P5PP/1q1P3R/RNBQK1N1 b Q - 0 9
FEN state: rnbk2nr/pppp1pp1/3bp2p/8/2P1PPB1/P5PP/1q1P3R/RNBQK1N1 b Q - 0 9 ; Best move: b2a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at d8, 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 pawn at f7 and black pawn at g7. Black bishop at d6, black pawn at e6 and black pawn at h6. White pawn at c4, white pawn at e4, white pawn at f4 and white bishop at g4. White pawn at a3, white pawn at g3 and white pawn at h3. Black queen at b2, white pawn at d2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 9. Black to move.