This is no ordinary puzzle...
thrufour is a 20 piece packing puzzle designed to challenge puzzlers of all ages and ability from the humble beginner to the most advanced solver.
With 330+ patterns to follow, puzzlers may stack pieces over 1 to 5 layers to complete 900+ challenges.
Each pattern presents a range of difficulty with some patterns requiring mere minutes to solve while others require more than an hour.
Additionally, there are so many patterns to choose from that it would be almost impossible to memorise every solution providing hours, days, weeks or even years of puzzling fun (and frustration).
Note:
Your puzzle comes complete with 5 pattern cards to get you started.
All patterns (as well as solutions) are available from our website.
The thickness of the individual pieces to 6mm (previously 4mm)*
Now crafted in Solid Maple and hand finished with Natural Beeswax.
We have now included a matching wooden box to play and display your completed puzzle.
Overall dimensions 94mm x 94mm x 42mm*
Includes:
20 puzzle pieces.
Matching storage/display box.
Instruction leaflet.
5 starter patterns. (All Patterns and Solutions available to download from our website.)
Microfibre Cleaning Cloth.
thrufour small
Stack all 20 puzzle pieces to create 5 layers so that you can see clearly through four holes.
In addition, there are a further 330+ unique hole patterns offering 900+ challenges to keep you puzzling for hours on end.
Unlike other packing puzzles there are so many challenges to complete it would be almost impossible to memorise every solution.
Difficulty: Varies from easy to extremely difficult.
Recommended age: 8 Years to Adult.