02 Define a suitable state representation Initial state and goal state Define possible operators: you can only switch a blank with the number that is directly adjacent (i.e., right above, below, left and right) to it. Draw first couple level of the search tree - apply ALL possible operators at least from one node. Then for the other nodes, to save space you can apply only one and omit the other. 1 2 3 1 5 4 4 5 6 2 7 241 PM 2/7/2018 02 Define a suitable state representation Initial state and goal state Define possible operators: you can only switch a blank with the number that is directly adjacent (i.e., right above, below, left and right) to it. Draw first couple level of the search tree - apply ALL possible operators at least from one node. Then for the other nodes, to save space you can apply only one and omit the other. 1 2 3 1 5 4 4 5 6 2 7 241 PM 2/7/2018