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Must Be True · think & focus

Tell what follows from what sounds likely.

Read two short facts, then choose the one conclusion that has to be true. The other three are the traps that catch everyone: the rule turned around, a detail nobody mentioned, or a guess that merely sounds sensible.

No account · no timer · no score against anyone else

Pick a level

Which conclusion has to be true?

Choose one level or take a three-level walk. Every answer ends with the reason the tempting conclusion does not follow.

A gentle note: Must Be True is practice at reading carefully. It is not a test of intelligence and it measures nothing about you.