What Makes a Sudoku Hint Actually Teach Logic?

A hint is a small piece of interface teaching. It should reduce the search space while preserving the satisfying act of understanding.

The best design offers enough context to ask a better question next time.

Point before revealing

Start with an affected row, column or box. A regional nudge lets the solver apply their own scan before a candidate or number appears.

Explain the relationship

When a technique is involved, name the cells and candidates that form it. A diagram or plain-language sentence is more useful than a flashing square alone.

Reveal one move

If a direct answer is necessary, show one placement and its reason, then let the solver continue. Multiple revealed cells turn practice into transcription.

Respect the current state

Hints should be based on confirmed entries and accurate notes, not on an assumption the solver made earlier. A recovery hint may need to identify the first conflict instead.

Create a pause

After a hint, give the player space to scan the consequences. Assistance teaches when it restores agency rather than accelerating consumption.