Practise: Claiming
Look only at the marked row or column. Where can 5 still go on this line?
On the marked line, the 5 has only two homes and both are inside one box. Look at the rest of that box; do not place a digit yet.
Example 1 of 4
Your turn first
Which box must supply the line’s 5?
Look only along the marked row or column. If all homes for 5 lie in one box, cross 5 out of that box outside the line.
Remember
Claiming is the reverse of Pointing Pair: if every home for a digit on one row or column lies in one box, remove that digit from the rest of the box outside the line.
Put it to use
Where you will meet it
Medium grids are where this move starts to matter: the obvious cells run out and the pattern takes over.
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