Mind Puzzle Games: Yin - Yang Puzzle - 100 Large Print Puzzles

consists of a rectangular or square grid with white and black circles in some cells. The aim is to place a black or white circle in each empty cell so that all circles of same color are connected to each other, vertically or horizontally. Additionally, no 2 x 2 group of cells can contain circles of the same color. brain teaser puzzles - brain teaser games - brain teasers for adults - brain puzzle games - number puzzles - fun for the brain - puzzle games for adults - brain busters - math brain teasers - brain teasers riddles - mind puzzle games - brain teasers riddles with answers - logic brain teasers - brain teasers and answers - riddles and brain teasers - mind teaser games