Mechanical Puzzles as a section of Puzzles. Recreational puzzles and their solving methods. Mathematical theorems belong in Math and rules of full tabletop games in their game subjects.
Test your knowledge with these top questions!
The Rubik's Cube was invented in which country?
Inventor Ernő Rubik built the first cube in 1974 while teaching architecture at a college in Budapest.
How many possible positions does a standard 3x3x3 Rubik's Cube have?
That is more positions than there are grains of sand on all of Earth's beaches.
How many colors appear on a standard Rubik's Cube?
On every standard cube, white faces yellow, blue faces green, and red faces orange.
How many small cube pieces make up the outside of a standard 3x3x3 Rubik's Cube?
The pieces break down into 8 corner cubes, 12 edge cubes, and 6 center pieces, leaving the 27th slot for the hidden core.
Who is widely credited with creating the first commercial jigsaw puzzles in the 1760s?
Long before their modern name, Spilsbury's creations were sold as "dissected maps".
In wooden jigsaw puzzles, what are pieces shaped like animals or objects often called?
These recognizable shapes can echo the picture's theme, hiding little figures inside the finished puzzle.
Most mass-produced jigsaw puzzles use a printed picture mounted on which material?
A shaped cutting die presses through the printed board to create the interlocking pieces.
Which school subject did the earliest jigsaw puzzles help children learn?
Early makers glued maps to wood and cut along borders, so children rebuilt the map by fitting territories together.
What move does the Tower of Hanoi forbid?
Only the top disk of a peg can move, so each larger disk stays buried until the smaller disks leave.
Who described the Chinese Rings puzzle in a 1550 book on ingenuity?
Cardano included the puzzle in De Subtilitate, which helped spread it through European puzzle fans.