🎯 Goal: fill every cell so each row, column, and box has all colors — no repeats.

👆 Tap a cell to select it, then tap a color in the palette to fill it.

✨ Same color elsewhere in the row/column/box shows a violet ring — that means a conflict!

💡 Use Hint (×3 per level) to reveal a cell. Undo reverses your last move.

⭐ Solve with fewer mistakes and hints for higher stars!