What difficulties does World Explorer include?

Choose Very Easy, Easy, Medium, Hard, or Hardest. Each level uses its own clue and difficulty profile.

Do I need an account for World Explorer?

No. The game works without an account and saves the current puzzle locally on this device.

Advanced

Sandwich Sudoku

Edge clues give the sum of digits between 1 and 9 in that row or column.

Puzzle setup

Select a difficulty to prepare your World Explorer adventure.

How this world works

Read edge clues to chart every route. Edge clues give the sum of digits between 1 and 9 in that row or column.