Download or read book Brainy Puzzles for Adults: Moonsun Puzzles - The Best Stress Relief Puzzles written by Rebecca Howell and published by Brain Puzzles for Adults. This book was released on 2018-09-10 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Moonsun ("Moon or Sun") is a logic puzzle invented by Nikoli. A rectangular or square grid is divided into regions. A grid contains black and white circles in some cells. The aim is to draw a single non-intersecting loop. The loop must cross borders of each region exactly twice. In a region the loop must visit either all cells with black circles or all cells with white circles. Regions with visited black circles must alternate with regions, where white circles were visited. mind puzzles for adults - mind puzzle books for adults - mind teasers puzzles for adults - puzzles engage your mind - easy mind puzzles - mind puzzle games for adults - active minds jigsaw puzzles - brain puzzles for adults - brain puzzle books for adults - brain puzzle books - brain teaser puzzles - brain puzzle challenge - brain puzzle games - active minds puzzles