size it up.

A little perspective

Weight

Add or remove either object to balance the pans. You have five weighings; only your best score counts. Exact balance earns 100 points and finishes the challenge. Empty pans cannot score. A new pair arrives at 00:00 UTC.

Read the full rules and scoring guide
Practice · not ranked
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WEIGHT LAB 2026-10-09

Find the balance.

Past challenge. Scores do not count toward leaderboards or today’s progress.

5 of 5 weighings leftNo weighings yet
Left pan · Therm-a-Rest Z Lite SOL regular pad× 1
Right pan · Chess king× 1
Adjusting · scale held
Adjust either side, then weigh.The scale is held while editing. Weigh to get feedback.

Adjust both quantities

Left panTherm-a-Rest Z Lite SOL regular pad
Right panChess king

Click or drag to the matching pan · or type a quantity

5 of 5 weighings left
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View answers

Answers from this past challenge. Today’s challenge remains a surprise.

One exact solution: 5 × Therm-a-Rest Z Lite SOL regular pad = 41 × Chess king

Therm-a-Rest Z Lite SOL regular pad
Left panTherm-a-Rest Z Lite SOL regular pad410 g
Chess king
Right panChess king50 g

Weights are set for this game, not real product specifications.

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