Logic Puzzles Without Guessing

A good logic puzzle is not asking students to guess. It is asking them to manage constraints.

The skill is to write down what must be true, what cannot be true, and what would force another condition.

COSMO Framework

1. List the objects.
2. List the possible labels or positions.
3. Cross out impossibilities.
4. Look for a condition that forces another condition.
5. Only branch when no forced move remains.

Why This Matters

This is the same habit behind proof, programming, scheduling, and optimization. Students learn to reason with restrictions instead of hoping for insight.

Practice

Make a 3-person, 3-object logic puzzle. Then solve it using a table, not a paragraph.