beam

Not logical, a bad hanjie.

I got it at first try! Jeah, there is no logic, so it was pure luck to get it :/.

Got it on my 2nd try. I was trying to see the symmetrical on the diagonal, but didn't see it until I started playing around a bit. Looks more like a weird guitar.

It's diagonally symmetrical from the upper right to the down left corner

not sure if logical or not, I eas too lazy and guessed it and got it right on my first try

Hint: the upper right big square (5x5) is only filled on the symmetrical axis.

Please use the 'try' feature to check you can finish your puzzle logically before submitting it :)

Thanks for clues - looks more like a broomstick to me.

Nice guess work. Not a serious hanjie, though.