This is a reduced version of a mind game a friend of mine discovered in India. The box is about 9,4 x 11,6 cm, and the pieces 4x4, 4x2 and 2x2.
The goal is to get the big square piece out of the box, only sliding the pieces left-rigth-up-down. If you need help, contact me and I will give you some tips.
The photos will help you to build the game.
The material used is ACRYLIC-Clear Transparent, and 6mm tick. This thickness is important to fit the pieces. Template size: 181mm x 181mm. You may use transparent glue.