Royal Grid

Seat one queen in each color region — no shared rows or columns, no diagonal touch. A uniquely solvable board is generated daily. Pure logic wins.
About
- Goal
- Place one queen per color region with no shared row or column and no diagonal touching.
- Controls
- Tap a cell to cycle from empty to cross to queen.
- First-play tip
- Mark impossible cells with crosses to narrow each region’s possibilities.
Play Royal Grid
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