7by7 Stones Puzzle

Assort seven stones at each area in the same color!

Rules are simple, But surprisingly difficult!?

[Game Description]

1. Touch the seven stone in each area, it will coup and Stone of other areas

2. Touch the most outside of Stone, let's exchange is rotated

3. on repeating the two operations, clear if the Stone of each area in the same color

[More]

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