Challenge v1 · Day 4 · Medium

Day 4 - 7-Day Sudoku Challenge

Day 4

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

Look for a cell with just one remaining candidate. Check the whole row, column and box before placing it.

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