Sudoku Luna
BeginnerBasics

Practise: Scanning

This puzzle leans on the Scanning throughout. Work through it and the move becomes second nature.

Practice
Mistakes0Score1,000Time0:00

How to spot it

Choose a digit that already appears several times, since more copies mean more blocking lines. Take one box at a time and mentally draw lines from every copy of the digit in the surrounding rows and columns. Cells the lines pass through are ruled out. If a box has one free cell left for that digit, place it.

Put it to use

Where you will meet it

This pattern is the backbone of easy grids. Start one and you will use it within a few moves.

Play Easy

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Type the position into the solver and it walks the whole solution, naming the technique behind every step — including this one.

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