Fill every row and column with the numbers 1 to 5 exactly once (Latin square).
- An orange bar between cells = the numbers differ by exactly 1 (e.g. 3 and 4, or 2 and 3).
- No bar = the numbers differ by 2 or more. Both bars and their absence are clues!
- Bars can be vertical (cells in the same row) or horizontal (cells in the same column).
Tip: Use the notepad button to mark possible numbers.