Kabingurodo ("Curving Road") is a logic puzzle invented by Naoki Inaba (Japan). It consists of a grid, with circles in some cells. The aim is to blacken some cells of a grid according to the following rules: - Cells with circles are always white. - Black cells must not be orthogonally connected. - All the white cells must form an orthogonally continuous area. - Each path from one circle to another circle on white cells must turn at least two times. brain games for adults - brain teasers riddles - mind puzzle games - mind puzzles for adults - puzzle games for adults - brain busters - math brain teasers - brain teasers and answers - riddles and brain teasers - brain twister - mind teaser puzzles - mind games for adults - funny puzzles - mental puzzles