1nbq1bnr/1pppk1p1/4p3/pB5p/P1PrPPp1/7N/1P1PK2P/RNBQ3R b - - 0 10
FEN state: 1nbq1bnr/1pppk1p1/4p3/pB5p/P1PrPPp1/7N/1P1PK2P/RNBQ3R b - - 0 10 ; Best move: d4e4
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black king at e7 and black pawn at g7. Black pawn at e6. Black pawn at a5, white bishop at b5 and black pawn at h5. White pawn at a4, white pawn at c4, black rook at d4, white pawn at e4, white pawn at f4 and black pawn at g4. White knight at h3. White pawn at b2, white pawn at d2, white king at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 10. Black to move.