r2q1bnr/p1pQpk1p/np1p4/5pB1/1PP5/3P1b2/P3PP1P/RN2KBNR b KQ - 4 13
FEN state: r2q1bnr/p1pQpk1p/np1p4/5pB1/1PP5/3P1b2/P3PP1P/RN2KBNR b KQ - 4 13 ; Best move: d8d7
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, white queen at d7, black pawn at e7, black king at f7 and black pawn at h7. Black knight at a6, black pawn at b6 and black pawn at d6. Black pawn at f5 and white bishop at g5. White pawn at b4 and white pawn at c4. White pawn at d3 and black bishop at f3. White pawn at a2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 13. Black to move.