Out of Reach
A cell too far from every remaining clue for that island to ever stretch to — it's sea.
How it works
- 1The 4 is the only clue here, so every land cell on the board has to end up belonging to it.
- 2It has three cells left to place, which means it can never stretch more than three steps from the clue.
- 3The far corner is four steps away — no island can ever reach it, so it is sea.
- Sea
- Cells that establish the pattern
- Where the conclusion lands