rnbqk3/2ppp1br/p4n2/1p3p1p/PP3pPP/2PP1N2/4PP1R/RNB1KB2 b Qq - 4 10
FEN state: rnbqk3/2ppp1br/p4n2/1p3p1p/PP3pPP/2PP1N2/4PP1R/RNB1KB2 b Qq - 4 10 ; Best move: f6g4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black king at e8. Black pawn at c7, black pawn at d7, black pawn at e7, black bishop at g7 and black rook at h7. Black pawn at a6 and black knight at f6. Black pawn at b5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at b4, black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at c3, white pawn at d3 and white knight at f3. White pawn at e2, white pawn at f2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white bishop at f1. White queenside and black queenside castles are available. Half move number is 4. Full move number is 10. Black to move.