Cross out a logic possibility only when a clue allows it

One negative statement removes a particular pairing, not every option that feels unlikely. Keep the clue beside each exclusion so later reasoning rests on evidence rather than an early guess that has become invisible.

Keep every exclusion tied to a named clue. This prevents an early assumption becoming an unsupported fact in later reasoning.

Make each exclusion traceable

If Mira does not hold the map, remove only that pairing.

List possibilities. Apply one clue. Record exclusions.

Absence of a clue is not an exclusion. Which clue supports the cross?

Use movable cards.

Resources

• Puzzle Partner Challenge — Use the four-by-four puzzle to discuss deductions from the stated constraints.

Further reading

• Australian Curriculum Version 9 — Critical and Creative Thinking

Read next

• A blank logic-grid cell still means unresolved
• One turn needs a beginning, an end and a next player
• The overlap in a Venn diagram has a job

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