Here it's 3 puzzles in one. 1 common core and 3 different sets of pieces to put around the common core. A lots of rotations are required. The difficulty increase with the 3 sets. Here, you can find the links to select the 3 correct sets :Tronc commun 1 level : 1.3.1.1.1.3Tronc commun 2 level : 4.3.4.1.3Tronc commun 3 level : 1.5.7.14.4 You can also use the photos to select the 3 sets.

The pieces of this puzzle are twisted, and crossed by pair. Even if the level is only 32 (6,5,5,4,12), it's a tricky puzzle because of rotations and strange moves. Because the pieces are crossed, when the left part of a face moves, it's the right part of the opposite face which moves, and it is quite disturbing.

Make a cubic pyramid with 3 different pieces. This puzzle need 3 moves to get out the first piece.

Make a cubic pyramid with 4 different pieces. This puzzle need 2 moves to get out the first piece and 2 others for the following. 1 rotation is required.

This puzzle is a 4x4x4 cube with rotations. It's not an extremely difficult puzzle, but a quite tricky. The fitting of the single little cube is very tight. When you assemble it, you just have to push this single cube. When you disassemble it, you DON'T have to use force, flexibility, or shake the puzzle. There is a trick way to get out this single cube. With those informations there are two levels : Assembling : 18 (9,7,1,1). Disassembling : 22 (1,5,8,9).

This puzzle is composed by 2 different pieces. Difficult to make a puzzle with less than 2 pieces. You will need 8 moves to assemble it. 3 rotations are required.

This puzzle is composed by 2 different pieces. Difficult to make a puzzle with less than 2 pieces. You will need 7 moves to assemble it. 4 rotations are required.

Very easy exploding ball 3 identical pieces Coordinated motion This puzzle is based on a cubic dissection I designed : Two Pi Wooden versions provided by Bernhard Schweitzer and Eric Fuller

Very easy exploding ball 3 identical pieces Coordinated motion This puzzle is based on a cubic dissection I designed : Two Pi Wooden versions provided by Bernhard Schweitzer and Eric Fuller

This puzzle is not easy but not too difficult. 2 couples of pieces are linked by a rotational move. those couples are inside a frame. The first couple MUST get out of the frame with rotations. The second MUST get out of the frame with translations. The level is : 1.3.2.11.8

This is a very difficult puzzle, between interlocking and disentanglement. More than rotations, we can really speak about very strange moves for this puzzle. Even if the quantity of move is not extreme, the quality of move make this puzzle extreme. The level is : 3.3.5.8.12.3. 18 rotations are required to disassemble completely "Tronc commun 4".

This puzzle is a truncated octahedron. The middle is hollow on the type A. 6 pieces : 3 identical pieces. 3 mirror. Coordinated motion. The same puzzle as Octopy type A but truncated.