Shinobi

Designed by Greg Gelf (that's me) thanks to some help from Alexander Magyarics.

The Shinobi puzzle is a 3-piece symmetry puzzle.

Goal: create a symmetrical shape out of the pieces.

The pieces must lay flat on a surface.

There are 2 known solutions. 

...

After years of training, you have finally made it to the Ninja Preliminary Exam, where Ninja candidates are challenged to solve tricky puzzles. After proving your might in the strength test, defeating your opponent in a long battle with your wits, you pass out from sleep gas.

You wake up in a big, empty white room. There are 3 mysterious pieces in front of you. Then, you hear a Japanese woman voice.  

"This is your final test. If you create a symmetrical shape from these pieces, you solved the puzzle and a hidden door will open. If you find the second solution, you pass the Ninja exam, and become an official Shinobi.

"However, if you fail to find any solutions - you will stay locked in this room forever."

The voice echoes in the room. A loud silence is then left.

I must do this. - your hands move towards the trinket.

It's time.    

...

Inspired by Japanese culture.