Challenge v1 · Day 7 · Medium
Day 7 - 7-Day Sudoku Challenge
Day 7
00:00
Medium
Select a cell, then tap a number to place it. Turn on Notes to add candidates. Use Undo and Redo to revisit a move.
Today's practice focus
Combine what you practised: scan, update candidates and check your deductions. Finishing thoughtfully matters more than finishing quickly.
This is a practice puzzle. Your result stays on this device and does not enter the ranked leaderboard.
Explore solving techniques