From the archive
Wednesday, 5 August 2026
The lookup VLOOKUP cannot do, because the answer sits to the left of the key.
A customer rings the parts counter and reads out code BLT-330. The price list is sorted by part name, so the codes sit in column B. Put the part name in B9 and the unit price in B10.
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.
The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.