A Bonsan from me! This is the first time I've ever posted a non-Sudoku puzzle on this website.
Move some circles so that the positions of the circles have 180° rotational symmetry in the entire grid. A circle may move only in one straight line vertically or horizontally. Circles’ paths may not cross each other, other circles, or other circles’ starting points.
Solution code: The number of circles in rows 1-5 (5 numbers), followed by the number of circles in columns 1-5 (5 numbers).
on 19. July 2022, 18:58 by Piatato
My first Bonsan. I started it for the sake of completion, not knowing what to expect, but finished it with a smile, satisfied by the very nice logic. :-)
on 9. February 2022, 05:09 by jovi_al
Made solution code more clear.