This is the last puzzle I am posting for the WPC participants looking for some practice. I wrote three ripple loops. I am posting the elementary one here. Other two are a bit tricky.
Rules: Draw a closed loop that connects the centres of all cells horizontally or vertically. Wherever two circles are edge-adjacent, the loop must go straight through one, and make a right angle turn in the other.
Rules: Draw a closed loop that connects the centres of all cells horizontally or vertically. Wherever two circles are edge-adjacent, the loop must go straight through one, and make a right angle turn in the other.
Multiple solutions found. https://i.imgur.com/8mbj4tu.png
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