Copyright (c) James A. Storer H-Slider Problem 4 ###################################################################### Rectilinear Solution Rectilinear steps: 31 Straight-Line steps: 34 Unit steps: 135 ###################################################################### #0: $ $ $ $ $ $ 1 1 1 A A A 1 1 1 A A A 1 1 1 A A A 2 2 2 H H B B B 2 2 2 H H B B B 2 2 2 H H B B B C C C H H H H H 3 3 3 C C C H X X X H 3 3 3 C C C H X X X H 3 3 3 $ $ $ H X X X H $ $ $ #1. Move 1 east (4 units): $ $ $ $ $ $ 1 1 1 A A A 1 1 1 A A A 1 1 1 A A A 2 2 2 H H B B B 2 2 2 H H B B B 2 2 2 H H B B B C C C H H H H H 3 3 3 C C C H X X X H 3 3 3 C C C H X X X H 3 3 3 $ $ $ H X X X H $ $ $ #2. Move 2 north (3 units): $ $ $ $ $ $ 2 2 2 1 1 1 A A A 2 2 2 1 1 1 A A A 2 2 2 1 1 1 A A A H H B B B H H B B B H H B B B C C C H H H H H 3 3 3 C C C H X X X H 3 3 3 C C C H X X X H 3 3 3 $ $ $ H X X X H $ $ $ #3. Move C north (3 units): $ $ $ $ $ $ 2 2 2 1 1 1 A A A 2 2 2 1 1 1 A A A 2 2 2 1 1 1 A A A C C C H H B B B C C C H H B B B C C C H H B B B H H H H H 3 3 3 H X X X H 3 3 3 H X X X H 3 3 3 $ $ $ H X X X H $ $ $ #4. Move H north (4 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A C C C H X X X H B B B C C C H X X X H B B B C C C H X X X H B B B 3 3 3 3 3 3 3 3 3 $ $ $ $ $ $ #5. Move 3 west (7 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A C C C H X X X H B B B C C C H X X X H B B B C C C H X X X H B B B 3 3 3 3 3 3 3 3 3 $ $ $ $ $ $ #6. Move X ending east (2 segments, 7 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A C C C H H B B B C C C H H B B B C C C H H B B B 3 3 3 X X X 3 3 3 X X X 3 3 3 X X X $ $ $ $ $ $ #7. Move 3 east (3 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A C C C H H B B B C C C H H B B B C C C H H B B B 3 3 3 X X X 3 3 3 X X X 3 3 3 X X X $ $ $ $ $ $ #8. Move C south (3 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A H H B B B H H B B B H H B B B C C C 3 3 3 X X X C C C 3 3 3 X X X C C C 3 3 3 X X X $ $ $ $ $ $ #9. Move 2 south (3 units): $ $ $ H 1 1 1 H $ $ $ H 1 1 1 H A A A H 1 1 1 H A A A H H H H H A A A 2 2 2 H H B B B 2 2 2 H H B B B 2 2 2 H H B B B C C C 3 3 3 X X X C C C 3 3 3 X X X C C C 3 3 3 X X X $ $ $ $ $ $ #10. Move H south (4 units): $ $ $ $ $ $ A A A A A A A A A 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B C C C H H H H H X X X C C C H 3 3 3 H X X X C C C H 3 3 3 H X X X $ $ $ H 3 3 3 H $ $ $ #11. Move A west (8 units): $ $ $ $ $ $ A A A A A A A A A 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B C C C H H H H H X X X C C C H 3 3 3 H X X X C C C H 3 3 3 H X X X $ $ $ H 3 3 3 H $ $ $ #12. Move B north (3 units): $ $ $ $ $ $ A A A B B B A A A B B B A A A B B B 2 2 2 H 1 1 1 H 2 2 2 H 1 1 1 H 2 2 2 H 1 1 1 H C C C H H H H H X X X C C C H 3 3 3 H X X X C C C H 3 3 3 H X X X $ $ $ H 3 3 3 H $ $ $ #13. Move X north (3 units): $ $ $ $ $ $ A A A B B B A A A B B B A A A B B B 2 2 2 H 1 1 1 H X X X 2 2 2 H 1 1 1 H X X X 2 2 2 H 1 1 1 H X X X C C C H H H H H C C C H 3 3 3 H C C C H 3 3 3 H $ $ $ H 3 3 3 H $ $ $ #14. Move H north (4 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H B B B A A A H 1 1 1 H B B B A A A H H H H H B B B 2 2 2 H H X X X 2 2 2 H H X X X 2 2 2 H H X X X C C C 3 3 3 C C C 3 3 3 C C C 3 3 3 $ $ $ $ $ $ #15. Move 3 east (3 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H B B B A A A H 1 1 1 H B B B A A A H H H H H B B B 2 2 2 H H X X X 2 2 2 H H X X X 2 2 2 H H X X X C C C 3 3 3 C C C 3 3 3 C C C 3 3 3 $ $ $ $ $ $ #16. Move C ending north (2 segments, 7 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H B B B A A A H 1 1 1 H B B B A A A H H H H H B B B 2 2 2 H C C C H X X X 2 2 2 H C C C H X X X 2 2 2 H C C C H X X X 3 3 3 3 3 3 3 3 3 $ $ $ $ $ $ #17. Move 3 west (7 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H B B B A A A H 1 1 1 H B B B A A A H H H H H B B B 2 2 2 H C C C H X X X 2 2 2 H C C C H X X X 2 2 2 H C C C H X X X 3 3 3 3 3 3 3 3 3 $ $ $ $ $ $ #18. Move X south (3 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H B B B A A A H 1 1 1 H B B B A A A H H H H H B B B 2 2 2 H C C C H 2 2 2 H C C C H 2 2 2 H C C C H 3 3 3 X X X 3 3 3 X X X 3 3 3 X X X $ $ $ $ $ $ #19. Move B south (3 units): $ $ $ H 1 1 1 H $ $ $ A A A H 1 1 1 H A A A H 1 1 1 H A A A H H H H H 2 2 2 H C C C H B B B 2 2 2 H C C C H B B B 2 2 2 H C C C H B B B 3 3 3 X X X 3 3 3 X X X 3 3 3 X X X $ $ $ $ $ $ #20. Move H south (4 units): $ $ $ $ $ $ A A A A A A A A A 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 3 3 3 H H H H H X X X 3 3 3 H C C C H X X X 3 3 3 H C C C H X X X $ $ $ H C C C H $ $ $ #21. Move A east (8 units): $ $ $ $ $ $ A A A A A A A A A 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 2 2 2 H 1 1 1 H B B B 3 3 3 H H H H H X X X 3 3 3 H C C C H X X X 3 3 3 H C C C H X X X $ $ $ H C C C H $ $ $ #22. Move 2 north (3 units): $ $ $ $ $ $ 2 2 2 A A A 2 2 2 A A A 2 2 2 A A A H 1 1 1 H B B B H 1 1 1 H B B B H 1 1 1 H B B B 3 3 3 H H H H H X X X 3 3 3 H C C C H X X X 3 3 3 H C C C H X X X $ $ $ H C C C H $ $ $ #23. Move 3 north (3 units): $ $ $ $ $ $ 2 2 2 A A A 2 2 2 A A A 2 2 2 A A A 3 3 3 H 1 1 1 H B B B 3 3 3 H 1 1 1 H B B B 3 3 3 H 1 1 1 H B B B H H H H H X X X H C C C H X X X H C C C H X X X $ $ $ H C C C H $ $ $ #24. Move H north (4 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A 3 3 3 H H B B B 3 3 3 H H B B B 3 3 3 H H B B B C C C X X X C C C X X X C C C X X X $ $ $ $ $ $ #25. Move C west (3 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A 3 3 3 H H B B B 3 3 3 H H B B B 3 3 3 H H B B B C C C X X X C C C X X X C C C X X X $ $ $ $ $ $ #26. Move X ending north (2 segments, 7 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A 3 3 3 H X X X H B B B 3 3 3 H X X X H B B B 3 3 3 H X X X H B B B C C C C C C C C C $ $ $ $ $ $ #27. Move C east (7 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A 3 3 3 H X X X H B B B 3 3 3 H X X X H B B B 3 3 3 H X X X H B B B C C C C C C C C C $ $ $ $ $ $ #28. Move 3 south (3 units): $ $ $ H 1 1 1 H $ $ $ 2 2 2 H 1 1 1 H A A A 2 2 2 H 1 1 1 H A A A 2 2 2 H H H H H A A A H X X X H B B B H X X X H B B B H X X X H B B B 3 3 3 C C C 3 3 3 C C C 3 3 3 C C C $ $ $ $ $ $ #29. Move 2 south (3 units): $ $ $ H 1 1 1 H $ $ $ H 1 1 1 H A A A H 1 1 1 H A A A H H H H H A A A 2 2 2 H X X X H B B B 2 2 2 H X X X H B B B 2 2 2 H X X X H B B B 3 3 3 C C C 3 3 3 C C C 3 3 3 C C C $ $ $ $ $ $ #30. Move H south (4 units): $ $ $ $ $ $ 1 1 1 A A A 1 1 1 A A A 1 1 1 A A A 2 2 2 H H B B B 2 2 2 H H B B B 2 2 2 H H B B B 3 3 3 H H H H H C C C 3 3 3 H X X X H C C C 3 3 3 H X X X H C C C $ $ $ H X X X H $ $ $ #31. Move 1 west (4 units): $ $ $ $ $ $ 1 1 1 A A A 1 1 1 A A A 1 1 1 A A A 2 2 2 H H B B B 2 2 2 H H B B B 2 2 2 H H B B B 3 3 3 H H H H H C C C 3 3 3 H X X X H C C C 3 3 3 H X X X H C C C $ $ $ H X X X H $ $ $