From the archive
Day 4
Friday, 7 August 2026
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Split a code the export never split
The middle piece is the hard one, because both of its edges move.
Task:
The stock-take scanner writes the depot, the item number and the colour into one code separated by hyphens, and not one of the three is a fixed length. Put the depot in column B and the item number in column C.
The daily challenge is part of Pro
A new exercise every morning, plus every day that came before it — a back catalogue that grows by one a day, whether or not you were here for it.
Recent days
The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.
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- Day 24 · Thursday, 27 August 2026Back into the interest rate a financing offer never quotes
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- Day 19 · Saturday, 22 August 2026Rank a sales contest without reordering the table
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