Cover the whole board with the dominoes in the tray. Each domino lies across two touching cells, and every coloured region must satisfy the rule shown in its corner.
- Tap a domino in the tray to pick it up, then tap two adjacent empty cells to drop it. The order you tap sets which way round it lands — tap the other cell first to flip it.
- Tap a placed domino to pick it back up. Every region badge shows a check when it is satisfied, a cross when it is broken.
- Win by tiling the entire board with every region rule satisfied.
- Stuck? Hint drops one correct domino; Show solution reveals the whole board.
The rule in each region’s corner reads:
5A number — the pips in that region must total exactly that number.
<7Less than — the region’s pip total must stay under the number.
>10Greater than — the region’s pip total must exceed the number.
=Equal — every pip value in the region must be the same.
≠All different — no two pip values in the region may match.