Mefferts Puzzle buy online
The Mefferts Puzzle fascinate since 1981. At first only self-designed puzzles were sold. Later, puzzles other inventors were added. All puzzles in common is that a subtle blend of chaos and order in the puzzles there. And if you try to change a piece of the puzzle, it will have the same effect on many other parts. You can learn how a big problem can be divided into many small, then to solve them one by one. You can even explain some difficult mathematical theories with these puzzles.