BeginnerBasics
Practise: Hidden Single
Look only at the highlighted row. Where can the 3 go?
Example 1 of 4
Practice
Mistakes0Hints0Score1,000Time0:00
Your turn first
Where can the 3 go?
Look only at the highlighted row. The 3 is still missing there. Which empty square can take it? Enter the 3 when you are sure, or compare your idea with the hint.
Remember
A Hidden Single is simple: one digit has only one possible place in a row, column or box.
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Where you will meet it
This pattern is the backbone of easy grids. Start one and you will use it within a few moves.
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