Maze Running in C Minor

1. Maze Running in C Minor A Series of Slides in 5 Parts Movement 3. IDFS

2. MAX DEPTH: 1 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

3. MAX DEPTH: 1 AT: AB STACK: Note that since we are at depth 1, we do not push any neighbors of AB onto the stack. KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

4. MAX DEPTH: 2 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

5. MAX DEPTH: 2 AT: AB STACK: BB AC Note that we push all neighbors except for the node we just came from. KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

6. MAX DEPTH: 2 AT: BB STACK: AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

7. MAX DEPTH: 2 AT: AC STACK: KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

8. MAX DEPTH: 3 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

9. MAX DEPTH: 3 AT: AB STACK: BB AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

10. MAX DEPTH: 3 AT: BB STACK: CB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

11. MAX DEPTH: 3 AT: CB STACK: BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

12. MAX DEPTH: 3 AT: BA STACK: AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

13. MAX DEPTH: 3 AT: AC STACK: KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

14. MAX DEPTH: 4 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

15. MAX DEPTH: 4 AT: AB STACK: BB AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

16. MAX DEPTH: 4 AT: BB STACK: CB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

17. MAX DEPTH: 4 AT: CB STACK: DB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

18. MAX DEPTH: 4 AT: DB STACK: BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

19. MAX DEPTH: 4 AT: BA STACK: CA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

20. MAX DEPTH: 4 AT: CA STACK: AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

21. MAX DEPTH: 4 AT: AC STACK: KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

22. MAX DEPTH: 5 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

23. MAX DEPTH: 5 AT: AB STACK: BB AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

24. MAX DEPTH: 5 AT: BB STACK: CB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

25. MAX DEPTH: 5 AT: CB STACK: DB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

26. MAX DEPTH: 5 AT: DB STACK: DE DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

27. MAX DEPTH: 5 AT: DE STACK: DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

28. MAX DEPTH: 5 AT: DC STACK: DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

29. MAX DEPTH: 5 AT: DA STACK: BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

30. MAX DEPTH: 5 AT: BA STACK: CA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

31. MAX DEPTH: 5 AT: CA STACK: DA AC Note that we push DA onto the stack even though we’ve already been there. This is an implementation of IDFS where no visit information is kept. KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

32. MAX DEPTH: 5 AT: DA STACK: AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

33. MAX DEPTH: 5 AT: AC STACK: KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

34. MAX DEPTH: 6 AT: AA STACK: AB KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

35. MAX DEPTH: 6 AT: AB STACK: BB AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

36. MAX DEPTH: 6 AT: BB STACK: CB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

37. MAX DEPTH: 6 AT: CB STACK: DB BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

38. MAX DEPTH: 6 AT: DB STACK: DE DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

39. MAX DEPTH: 6 AT: DE STACK: EC EA DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

40. MAX DEPTH: 6 AT: EC STACK: EA DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

41. MAX DEPTH: 6 AT: EA STACK: DC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

42. MAX DEPTH: 6 AT: DC STACK: CC DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

43. MAX DEPTH: 6 AT: CC STACK: DA BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

44. MAX DEPTH: 6 AT: DA STACK: CC BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

45. MAX DEPTH: 6 AT: CC STACK: BA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

46. MAX DEPTH: 6 AT: BA STACK: CA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

47. MAX DEPTH: 6 AT: CA STACK: DA AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

48. MAX DEPTH: 6 AT: DA STACK: DB AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

49. MAX DEPTH: 6 AT: DB STACK: AC KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT

50. MAX DEPTH: 6 AT: AC STACK: KEY: GREEN – Start RED – Exit YELLOW – Visited on this iteration Nodes are taken in the order: UP, LEFT, DOWN, RIGHT