Twisting Apple Logic Puzzle — Fit the Caterpillars

A plastic apple that twists into different shapes, three bendy caterpillars in green, blue and yellow, and a book of challenges. Each challenge sets the apple's shape, and your child has to bend the caterpillars so all three sit inside with nothing sticking out. Every puzzle has exactly one solution.

How you play

1. Open the challenge book and choose a level to start on.
2. Twist the apple's sections until it matches the shape in the challenge.
3. Bend the caterpillars and try to fit them into the spaces.
4. Make sure none is sticking out or covering the wrong place.
5. Check against the book — there is only one right answer.

What it builds

• Logical elimination: if this one goes here, the others cannot
• Thinking a move ahead instead of placing and hoping
• Fine hand control from bending and seating the pieces
• Accepting a single correct answer and hunting for it

Three ways to play it

• Do the first few levels together, then let your child go alone
• Set the apple yourself and invent a challenge for them
• Come back to a puzzle that beat you a week later — it is often easy then

The details

• Ages: 3–5 years