1rb1kb1r/1p1pp2p/n1q3pn/5p2/6PP/2P2N2/PP1PPP2/R1BQKB1R b Q - 2 13
FEN state: 1rb1kb1r/1p1pp2p/n1q3pn/5p2/6PP/2P2N2/PP1PPP2/R1BQKB1R b Q - 2 13 ; Best move: f5g4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at e7 and black pawn at h7. Black knight at a6, black queen at c6, black pawn at g6 and black knight at h6. Black pawn at f5. White pawn at g4 and white pawn at h4. White pawn at c3 and white knight at f3. White pawn at a2, white pawn at b2, white pawn at d2, white pawn at e2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.