rn2kb1r/p1p2ppp/3p1q2/1p1p1PB1/8/P2BP2b/1PP3PP/RN1QK2R b KQkq - 4 10
FEN state: rn2kb1r/p1p2ppp/3p1q2/1p1p1PB1/8/P2BP2b/1PP3PP/RN1QK2R b KQkq - 4 10 ; Best move: f6g5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at d6 and black queen at f6. Black pawn at b5, black pawn at d5, white pawn at f5 and white bishop at g5. White pawn at a3, white bishop at d3, white pawn at e3 and black bishop at h3. White pawn at b2, white pawn at c2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 4. Full move number is 10. Black to move.