1rb2q2/pp1n1kr1/1B3np1/2pppp1p/3PP2P/P1NB1N2/1PP2bP1/RQ1K3R w - - 0 18
FEN state: 1rb2q2/pp1n1kr1/1B3np1/2pppp1p/3PP2P/P1NB1N2/1PP2bP1/RQ1K3R w - - 0 18 ; Best move: b6a7
The current state of the chess board is: Black rook at b8, black bishop at c8 and black queen at f8. Black pawn at a7, black pawn at b7, black knight at d7, black king at f7 and black rook at g7. White bishop at b6, black knight at f6 and black pawn at g6. Black pawn at c5, black pawn at d5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at d4, white pawn at e4 and white pawn at h4. White pawn at a3, white knight at c3, white bishop at d3 and white knight at f3. White pawn at b2, white pawn at c2, black bishop at f2 and white pawn at g2. White rook at a1, white queen at b1, white king at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.