This dynamic cube is one of our hardest, and also happens to be one of our favorites. The Koncy Puzzle contains six pieces. Nothing connects these pieces to each other, or lets the cube retain its form, besides the unique and unconventional shapes of the pieces themselves. Dismantling this cube is a very complex and gentle affair. It should be done one step at a time, and is difficult in and of itself.
The 6 pieces slide apart and return to a cube. It is important to note the last piece to come apart as it is the last to be inserted as the cube is reassembled.
Once the shape is unraveled, getting it back into a cube turns out to be much harder than it looks . Fair warning: this puzzle has 47 steps to bring it back into a cube. Starting with a 3x cube is recommended.
In this special box you can find 27 wooden rods.
All of them have the same size, but are sliced differently inside.
To create a burr puzzle (interlock puzzle that has 2 rods on each side), you will need any 5 different rods + the 0 (zero) rod- which is the only fully squared rod.
Cast Square - Game Rank 6
This puzzle can be assembled into three different color combinations. Beware this puzzle is complicated by internal mechanics.
With 3 different objectives this is the perfect game for any coffee table. See how many solutions you can find for the triangle and the two three dimensional pyramids.
The triangle can be filled any of 24 ways, and once complete the pieces can be used to make a 4x4x4 pyramid using 20 balls and a 5x5x5 using all the pieces except the single ball.
The challenge :Balance all the nails on the single peg in the center without letting the nails touch the base!
You may not use rubber band, glue or any other aids…
Invented by Mr. Andrew Snowie, this versatile puzzle is comprised of 12 different pieces. When it is assembled, it can be used to play real chess games, but can you fit all of the pieces back into the frame? There are 156 different ways to accomplish this. Once you've succeeded, try building a 4x4x4 checkered cube.
Dimensions : 9" x 9" x 1.2"
In addition, we provide you with instructions for 54 other shapes to build out of the pieces. There are between one and hundreds of ways to build shape, so this puzzle should keep anyone busy for quite a while...
Cast Spiral - Game Rank 5
The five pieces slides past each other vertically, keep in mind some are identical and some are not.
Cast Equa - Game Rank 5
The two semi circles can be separated and removed from the frame.
Game Rank 5
Free the hooked ring from the maze; this is the most challenging of the labyrinth puzzles.
Cast H&H - Game Rank 5
Hanayama’s newest cast. Separate the two pieces; they have more degrees of freedom than it first appears.
Game Rank 5
Twist the three rings apart and then back into the solid shape.