Translation of "tricky" into Danish

Now, figuring out where the old connections once were can be very tricky.

At regne ud hvor de gamle forbindelser er, kan været meget tricky.

I would say that the potato is quite a tricky crop to cultivate.

Wojciechowski, for en glimrende betænkning. Jeg vil sige, at kartofler er en ganske drilsk afgrøde at dyrke.

I tried accessing Self's user account but he has a tricky firewall system in place.

Jeg prøvede at få adgang, men Self havde en indviklet firewall.