Double sided sliding blocks puzzle

There is a new version of this puzzle here, which does not require an AMS and, I think, is nicer to play with.

There is also a 5x5 version of this puzzle here, and a 6x6 here, if you want a bigger challenge!

NOTE: I have updated the print profile to set z-seam to “back” and rotated the puzzle 45 degrees, which should make it easier to get the pieces moving.  I have also spaced out the pieces on the row with the space in it, so there are fewer edges that might need separating.

This is a double sided sliding blocks puzzle, with numbers on one side and letters on the other.  As you solve the puzzle for one side, you scramble the other side, meaning the puzzle can provide never ending fun!

There are many different patterns you can try to make, for example:

Left to right

Clockwise spiral

Top to bottom

And then there are variations, such as right to left, anti-clockwise spiral, spiral starting at the bottom left cornet, etc, etc.  Then, of course, you can repeat all these on the other side using letters rather than numbers!  Note not all patterns are possible; if you end up with just two adjacent pieces that need to change places it wont be possible.

This is a print-in-place puzzle; the tiles move freely once you break them free from their neighbours.  You can do this by holding two adjacent tiles and flexing them slightly.

Enjoy!