Solving for the currrents in the resistors

[kni6468]

I don't asnwer what to do with the wires crossing

 

[vk6kro]

I don't asnwer what to do with the wires crossing

View attachment 46771

It looks like the resistors do not cross at the center. Normally a joining point would have a shaded circle on it, but this isn't used elsewhere in the circuit, so it probably wasn't used at the center either.

So, I would take it that the 4 resistors join at the center and do not cross over.

Looks like a lot of simultaneous equations.