Zip answer. #603

Solved zip board for puzzle 603. The complete text solution follows below.

Every move in order

Rows and columns below start at 1, from the top left.

  1. Start at row 3, column 6 (1).
  2. Down to row 4, column 6.
  3. Down to row 5, column 6.
  4. Down to row 6, column 6.
  5. Left to row 6, column 5.
  6. Left to row 6, column 4 (2).
  7. Left to row 6, column 3.
  8. Left to row 6, column 2.
  9. Left to row 6, column 1.
  10. Up to row 5, column 1.
  11. Up to row 4, column 1 (3).
  12. Right to row 4, column 2 (4).
  13. Down to row 5, column 2.
  14. Right to row 5, column 3.
  15. Right to row 5, column 4.
  16. Right to row 5, column 5 (5).
  17. Up to row 4, column 5.
  18. Left to row 4, column 4.
  19. Left to row 4, column 3.
  20. Up to row 3, column 3.
  21. Left to row 3, column 2.
  22. Left to row 3, column 1.
  23. Up to row 2, column 1.
  24. Up to row 1, column 1.
  25. Right to row 1, column 2.
  26. Right to row 1, column 3 (6).
  27. Right to row 1, column 4.
  28. Right to row 1, column 5.
  29. Right to row 1, column 6.
  30. Down to row 2, column 6.
  31. Left to row 2, column 5.
  32. Down to row 3, column 5 (7).
  33. Left to row 3, column 4.
  34. Up to row 2, column 4.
  35. Left to row 2, column 3.
  36. Left to row 2, column 2 (8).

Why it works

The official path visits every cell once, respects every wall, and reaches the checkpoints in numerical order.

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