Gem Zones

Gem Zones
Gem Zones is a colourful placement logic puzzle. Put exactly one gem in every row, every column, and every coloured zone, while making sure no two gems touch — not even diagonally.Choose Easy, Medium, or Hard and solve endlessly generated 6×6, 8×8, and 9×9 boards with proven unique solutions. Mark impossible cells with crosses, reveal a gem with a hint when stuck, and track your personal best and average solve times for every difficulty.

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