For this puzzle, you're given a three piece set as depicted below:
- A blue indicator peg
- A square 4 x 4 tile frame filled with 16 tiles
- A max.8 tile holder / dispenser
Your task is to un-scramble the tiles in the 4x4 frame to form a well-known pictogram.
There are of course a couple of rules:
- As a first step, you choose a start position. Place the blue peg on one of the light-blue rectangles of the 4x4 frame
From now on, each of your moves consists of two parts:
- First, perform one action in the row or column indicated by the blue peg
- Then, move the peg one step further in a clockwise rotation
The actions you can choose from on each move are depicted below.
- Rotate one tile of the active row/column 90 degrees clockwise
- Remove one tile of the active row/column and place it from the top in the dispenser stack. (Do not rotate the tile.)
- Place the bottom most tile from the dispenser stack on an empty tile of the active row/column (Do not rotate the tile.)
You must not skip an action in a move, i.e. you may never move the blue peg without performing exactly one valid action first.
Find the minimum number of steps to unscramble the image.
Visual instructions:
Notation
To describe your solution, use the following notation format:
Specify the starting position as 1 - 16
(1 is the first on the top row, then clockwise)Each move:
- Specify the tile as distance from peg, i.e. as @1, @2, @3, or @4
(@1 being adjacent to the peg and @4 furthest away from the peg.) - Specify the action as either:
- rotate
- add
(from bottom of dispenser) - remove
(to top of dispenser)
- rotate
- Specify the tile as distance from peg, i.e. as @1, @2, @3, or @4
For example:
Start 5
@3: rotate
@1: remove
@2: rotate
@4: add
...