Knowledge and Curiosity
Grown-ups

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Two-Rule Sorting

Sort every token by two visible rules: its shape column and its fill-pattern row.

How to play

Choose a token, then the place where its shape column and fill row meet. Move tokens freely before Check. You can drag, tap or use Tab and Enter. More than one token can share a space.

A dotted circle belongs in the circle column and dots row. A striped square needs a different row and column. Look at both illustrated headers; a little hint explains one rule to try again.

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About Two-Rule Sorting

Sort every token by two visible rules: its shape column and its fill-pattern row.

How to play

Choose a token, then the place where its shape column and fill row meet. Move tokens freely before Check. You can drag, tap or use Tab and Enter. More than one token can share a space.

A dotted circle belongs in the circle column and dots row. A striped square needs a different row and column. Look at both illustrated headers; a little hint explains one rule to try again.

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