statespaces/src/simulator/sliding_blocks/initial_states/four.js

export const four = {
  name: "Four",
  width: 3,
  height: 3,
  board: [
    [0, 0, 0, 0, 0],
    [1, 2, 0, 2, 0],
    [2, 0, 2, 0, 2],
    [3, 2, 2, 2, 2],
  ],
};