If there's logic here, I can't find it. You have to assume symmetry.

Completely logical and solvable without assuming symmetry.

@VitaMaskar if you want to try:
On the first line you can think what would happen, if you put the 7 at the c1-7 and what it implies on line 2.
If so, then line 2 will have c1-3 and c5, while you can't put anything on c4 and c6-7 (X). This means, that the second 3 on line 2 can not be set in this setting(as long as line 1 c4 is filled).
Hence line 1 c1-4 are not fillable (X).
You can repeat the same at the end and you'll have the first line filled :)

If you have difficulties imagining it, you can start and try with temporaries - with enough training you won't have to use them anymore.

Thought it was a new category, thanks for the hanjie.

Fully logical (with or without assuming symmetry). Good image. Thank you for the puzzle!

Thank you.

Nice image. Fully logical.

Nice one, cool.

Thanks.

Good one.. Had no trouble figuring this out.

100% logical. No trouble. It IS symmetrical, but you do not need to assume that to solve it.
Thanks.