Numberlink
Also called Connectlink, Flow, Arukone
Join each pair of matching numbers with a line; lines never cross.
Rules
Join each pair of matching numbers with one line.
✓ Pairs joined ✗ 1 joined to 2 Lines never branch, cross or touch another number.
✗ Lines cross In Connectlink, every cell is used by a line.
✗ Cells left empty
Example: Pairs
Playing here: Drag from a number through the cells to its match; drag back to erase.