Mechanical puzzle

Classes of of mechanical puzzles

• disentanglement puzzles : Here some or all of the pieces have to be separated from the other pieces.
• lock puzzles
• rearrangement mechanical puzzles : Here the pieces have to be rearranged in a certain way in order to achieve a certain setup. Sometimes such the puzzles is presented in a solved state, but is easily changed into a difficult setup by a few moves by the player.
  • Rubic's Cube[?]
  • Easy Cubes[?]
• trick-knife puzzles