Why is the analysis field inactive in this position:

lichess.org/editor/2kb3r/2q2p2/pp4r1/2bPp3/2p1P2p/2P2Qn1/P1B2NPP/2P1RR1K_w_-_-_0_1?color=black

?

Because you cannot have a pawn on the first rank.

The two dark-squared bishops for black are legal, but it seems unlikely you want them there, but maybe you do...

@nadjarostowa said in #2:
> Because you cannot have a pawn on the first rank.
>
> The two dark-squared bishops for black are legal, but it seems unlikely you want them there, but maybe you do...
And a knight, that checks king

@Standard_Variant_6 said in #3:
> And a knight, that checks king

That's not a problem. It is white to move.