36 - Kaisu

Today's new puzz.link genre is Kaisu. Its name is very similar to Haisu, and its rules are very similar to Haisu. Just with circles instead of numbers. I find Haisu to be pretty challenging to solve, and sure enough, the Kaisu puzzles I made turned out pretty tricky as well.

Here's the rules and example from the rules page:

Draw a path from S to G that goes through all cells. The path cannot branch off or cross itself. An outlined region can be entered and exited multiple times. On the region's Nth visit the line must go through exactly N circles, or go through no circles.

My puzzles:

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