Best Challenging Games

Nondango (dango is a Japanese dish, small balls made from rice flour and skewered on bamboo sticks) is a logic puzzle published by Nikoli. A rectangular or square grid is divided into regions. Each region contains circles in some cells. The aim is to blacken some circles according to the following rules: * Each region contains one black circle. * Three consecutive circles of the same color never appear in any row, column or diagonal. There must be a circle of...
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Nondango (dango is a Japanese dish, small balls made from rice flour and skewered on bamboo sticks) is a logic puzzle published by Nikoli. A rectangular or square grid is divided into regions. Each region contains circles in some cells. The aim is to blacken some circles according to the following rules:
* Each region contains one black circle.
* Three consecutive circles of the same color never appear in any row, column or diagonal. There must be a circle of other color or an empty cell between them.