That extra bit of challenge, without it becoming too complicated
The Happy Cube Pro 6-pack is the perfect middle ground between the Original and Expert sets. Each of the six puzzles is unique and offers multiple possible solutions, making constant trial and error a natural part of the game.

This series has a clear but accessible progression in difficulty. The color order helps with this:
Blue, green, yellow, orange, red, and purple. This way, everyone can join and grow at their own level.

These puzzles grow with you and offer different game options:
- 2D puzzle by removing all the pieces from the frame and putting them back
- building a perfect cube with six puzzle pieces
- combine multiple puzzles for larger and more challenging 3D constructions

Spatial insight, logical thinking, and problem-solving skills are strengthened through play. Executive functions such as planning, perseverance, and flexible thinking also receive ample attention.

Already known in the 1990s as the Wirrel Warrel Puzzle , it remains relevant today thanks to its versatility and open-ended design. The puzzle pieces are soft, lightweight, and washable, making them ideal for use at home, in the classroom, or in a practice room.