Challenge v1 · Day 3 · Medium

Day 3 - 7-Day Sudoku Challenge

Day 3

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

Use pencil marks when a cell has several candidates. Update them as you place confirmed digits.

This is a practice puzzle. Your result stays on this device and does not enter the ranked leaderboard.