This is a fun and easy project to make. The goal is to fit the blocks of "chocolate" into the box. Compared to my other puzzles, I would rate the difficulty of this puzzle as a 2 out 5.

Below is a quick video of the solution.

I felt like this version was pretty easy to make but if you are not up to it, feel to purchase a similar version from online.

Step 1: Tools/Materials

Tools:

Table Saw
Router Table
Router Bit (1/4" V)
Drill
Forstner Bit (1" Diameter)
Wood Clamps
Sander
Ruler
Pencil

Materials:

Wood - 5.5" x 24" x 5/16" thick
Wood Glue
Paint/Stain (optional)

Step 2: Box

The box is used to house the chocolate pieces. The build is pretty straightforward.

Step 3: Floor

Cut the floor of the box to the dimensions shown.

Step 4: Box Front/Back

Cut to the size shown.

Step 5: Box Sides

The sides have finger grabs. The final dimensions are shown. I found it easier to cut a wide piece and drill the hole in the center. I then used a table saw to cut the part into two pieces.

Step 6: Assemble Box

Use wood glue and clamps to attach the sides to the floor.

Step 7: Puzzle Pieces

The parts will fit in the box as shown.

Step 8: Blocks

You will be building to these dimensions. The following quantities (numbers represent blocks of chocolate) are required:

2x5 (x1)
2x3 (x2)
2x2 (x1)
2x1 (x2)
1x3 (x2)
1x2 (x2)

Step 9: Notches

I used a V shaped 1/4" router bit to cut the notches for the blocks.

Step 10: Blocks

A table saw was used to cut the individual blocks once the notches were included. At this point, you might want to consider painting or staining the pieces. I used a walnut stain for mine.