Full Capacity
This island's number equals everything its remaining connections could possibly carry — every one of them must be filled to its maximum.
How it works
- 1The 4 in the top-left corner needs 4 bridges, and it only has two possible directions — right and down.
- 2Each direction can carry at most 2 bridges, so 2 + 2 is exactly 4: there's no slack at all.
- 3Both connections must be double bridges. The same logic applies to a 6 on an edge or an 8 anywhere.
- Bridge to add
- Islands that establish the pattern