r2qkb1r/1p2Nppn/7p/p1p4P/3BP1P1/P2BKQ2/1PP2nP1/RN4R1 b kq - 2 20
FEN state: r2qkb1r/1p2Nppn/7p/p1p4P/3BP1P1/P2BKQ2/1PP2nP1/RN4R1 b kq - 2 20 ; Best move: d8d4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, white knight at e7, black pawn at f7, black pawn at g7 and black knight at h7. Black pawn at h6. Black pawn at a5, black pawn at c5 and white pawn at h5. White bishop at d4, white pawn at e4 and white pawn at g4. White pawn at a3, white bishop at d3, white king at e3 and white queen at f3. White pawn at b2, white pawn at c2, black knight at f2 and white pawn at g2. White rook at a1, white knight at b1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 20. Black to move.