What is thrufour?

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'                          ' is a 'packing puzzle' consisting of 20 3D Printed pieces

which need to be packed into a 3D printed tray in a particular order.

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There are more than 700 patterns to complete offering hours of puzzling fun (and frustration)

with some patterns more difficult to complete than others.

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There are several different ways to play our puzzle...

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                                    SOLO          Play individually at your own pace while enjoying a cuppa.

                                                          Can be therapeutic and rewarding.​

 

                                    BATTLE     Play against an opponent (or opponents) and race to be

                                                          the first to complete pattern.

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                                    TIMED       Play against the clock to improve your personal best

                                                         or the current all time best.

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How to solve thrufour?

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Choose a pattern from the hundreds of available patterns.

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Decide the number of layers you wish to attempt to stack.

Up to the maximum possible number of layers indicated.

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Complete the desired number of layers so that you can see only

through the holes that match your chosen pattern.

The top layer must be 'clean'

No other holes except for those indicated in the pattern.

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Subsequent layers may include extra holes in addition to those

that match your chosen pattern, as these will be obscured

by the top layer.

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