Question

What are the minimum number of tile pieces (shown on the right) that are required to create a path from tile A to tile B, such that ALL the following conditions are met:

• All tiles are to be used at least once.
• Tiles cannot overlap.
• The path on a tile must be connected to another path of a tile.
• The same type of tile cannot be used one-after-the other in a sequence.
• Rotation of the tiles is not allowed.
• Exclude tile A and tile B from the count.
  

Answer 1

The correct answer is: 12 or 13