Crown Grid

How to play

1. The grid is split into coloured regions. Place exactly one crown in every row, every column and every colour region.
2. No two crowns may touch each other, not even diagonally.
3. Tap a cell once to mark it as empty, twice to place a crown, and a third time to clear it. Marks are only notes to help you.
4. Crowns that break a rule glow red. Solve the grid to stop the timer; every grid has exactly one answer, so you never need to guess.

Tips and strategy

• Start with the smallest region: if a region is a single cell, it must hold the crown there.
• When a region sits entirely in one row or column, that row or column's crown must be in that region, so mark the rest of the row empty.
• A crown rules out all eight cells around it, so mark those as empty straight away.
• If two regions are squeezed into the same two columns, no other region can use those columns.