How to Play
Pair All Cells
Tap two adjacent cells to connect them. Cover the entire 6x6 grid with 18 domino pairs.
1-9
Numbers are 1-9
1 is the smallest, 9 is the largest. Use this to deduce flow direction!
3→7
Flow: Small → Big
First tap = source. Its value must be ≤ the second cell.
✓ 3→7✓ 5→5✗ 8→4
Same Color Only
Links must stay within the same colored region. Can't connect across different colors.
unique
No Duplicates
Each row and column has unique numbers. Use this to deduce hidden values!
Quick Tips
- • Start with cells that have only one possible neighbor
- • Use visible numbers to determine flow direction
- • Work from corners and edges inward
- • Tap a linked cell to remove the link
Difficulty
Easy: 50% shownNormal: 40% shownHard: 28% shown