r1bn1rk1/p2p1p2/1p2p1p1/2pQ2NP/2P5/3P1P2/P2BP1KP/Rq3B2 b - - 9 20
FEN state: r1bn1rk1/p2p1p2/1p2p1p1/2pQ2NP/2P5/3P1P2/P2BP1KP/Rq3B2 b - - 9 20 ; Best move: b1f1
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black rook at f8 and black king at g8. Black pawn at a7, black pawn at d7 and black pawn at f7. Black pawn at b6, black pawn at e6 and black pawn at g6. Black pawn at c5, white queen at d5, white knight at g5 and white pawn at h5. White pawn at c4. White pawn at d3 and white pawn at f3. White pawn at a2, white bishop at d2, white pawn at e2, white king at g2 and white pawn at h2. White rook at a1, black queen at b1 and white bishop at f1. Both players have exhausted their castles. Half move number is 9. Full move number is 20. Black to move.