Make every ≤ true.

Between every pair of neighboring tiles sits a comparison sign. Across a row it reads left to right on one fact; up a column it reads bottom to top on another. Arrange the tiles so every sign is true.

Fruit, say. Rows go by size (smaller on the left); columns go by rainbow position (red at the bottom, purple at the top). Every sign holds — solved:

Here the pear and lemon are swapped. A pear is bigger than a lemon, so the sign between them breaks — it turns red when you check:

Swap them back and it’s green again.

There is no single correct board. Anyarrangement where every sign holds is a win — your winning board may not match a friend’s, and that’s fine.

• Drag tiles to rearrange — or tap two tiles to swap them.
• Hit Check answer: every sign turns green or red.
• Moving a tile resets the signs around it.
• You get limited checks — solve it in as few as you can!