Is this logical? I had a hard time with the middle and had to guess to complete the puzzle. Nice end result though.

Had no problems with it =3 Seemed logical to me.
Nice result indeed =)

It is illogical the middle part.

Seemed logical to me too.

Pure logic..

Thanks.

Logical but you will need to use a lot of temporaries!

Fully logical and can be solved without using temporaries, but it may take some time. Nicely done!