rn2k2r/4ppbp/ppp2n2/2qp2p1/PPPPPNQP/R5P1/1B3PB1/1N1K3R b q - 0 17
FEN state: rn2k2r/4ppbp/ppp2n2/2qp2p1/PPPPPNQP/R5P1/1B3PB1/1N1K3R b q - 0 17 ; Best move: f6g4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at c6 and black knight at f6. Black queen at c5, black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at b4, white pawn at c4, white pawn at d4, white pawn at e4, white knight at f4, white queen at g4 and white pawn at h4. White rook at a3 and white pawn at g3. White bishop at b2, white pawn at f2 and white bishop at g2. White knight at b1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 17. Black to move.