It is enough to memorize the sequence of moves that lets you switch from the initial
rectangular configuration with the front picture set to the heart-shaped configuration
(a 3x3 square without a corner) with the rear-facing picture set.
[english translation in progress...]
The sequence of moves shown in the following
short animation
works for the standard puzzle. It might not work for puzzles with customized decoration.
It is necessary to orient the puzzle correctly.
Remark: This is not the fastest way to achieve the desired result.
If you are interested there are a lot of videos on youtube on the subject.
italiano?
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