Logic Masters Deutschland e.V.

In December 2020 there was a logic puzzle advent calender on mathebau.rocks. These puzzles will be uploaded to the puzzle portal in the next weeks.

14. Dezember - Masyu

Rules: Draw a closed loop in the diagram that does not touch or intersect itself. The loop has to go through all circles and goes horizontaly or vertically from cell to cell.
In cells with a black circle, the loop makes a 90° turn and goes straight through the cells before and after. In cells with a white circle, the loop goes straight through and makes a 90° turn in at least one of the cells before or after.

Link for online solving