Shelf Hunt
Code Trail
Code Trail

Today’s Code Trail

Find four real UPC segments. Each one unlocks its complete product barcode and reveals their shared shelf.

How to play

Code Trail

Trace real five-digit barcode segments through the number grid and unlock their products.

  1. Choose a UPC Trail

    Select one of the four five-digit segments beside the grid.

  2. Trace its exact digits

    Swipe through touching numbers in order. Move up, down, left, or right—never diagonally.

  3. Follow bends and reversals

    A trail may turn, and the same visible sequence can be traced forward or backward.

  4. Unlock all four products

    Each correct trail reveals its product and complete GTIN. Find all four to reveal their shared Shelf Line.

Stuck? “Show a starting tile” highlights one valid place to begin and counts as a hint.