August 20, 2026
Launch Lineup
A 4-minute logic challenge. Solve first, then compare your answer against the model bench.
Daily challenge switches at midnight in Europe/Amsterdam.
Daily challenge · Logic · 4 min
Launch Lineup
00:00
Four people, Ana, Bo, Cy, and Di, must stand in a line.
- Ana is not first or last.
- Bo stands immediately before Cy.
- Di stands before Ana.
Which lineup must be the only valid one?
Solve without AI first. The model comparison appears only after you lock in.
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