Friendly-Cells Sudoku

Some cells on the board are marked with a heart symbol — these are called Friendly Cells.

🧠 The Rule

A Friendly Cell must contain a digit that matches at least one of the following:

• The row number
• The column number
• The box number - (not applicable to Jigsaw Sudoku)

🔍 Note: Not all Friendly Cells are marked — only some are highlighted with a heart symbol.

💡 Friendly Cells Tips

• If a heart appears in cell A1, it must be 1 (row 1, column 1, box 1).
• If it’s in E5, the value must be 5 (row 5, column 5, box 5).
• If it’s in I9, the value must be 9 (row 9, column 9, box 9).

2. A Friendly Cell can have at most 3 possible candidates, making it a great spot to narrow down your logic.

Use the hearts to your advantage and solve smarter!