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Daily Sudoku for October 13, 2026

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The daily sudoku for October 13, 2026 is a Hard puzzle with 26 clues and an SE rating of 4.2. It is the same grid the Suuudokuuu app serves as its daily challenge that day, everywhere in the world: the board is forged from the UTC date alone, so the app, this page and the archive all arrive at it independently.

The Hard daily sudoku for October 13, 2026.
c1c2c3c4c5c6c7c8c9
r1587
r2761285
r32976
r424
r518
r637
r7496
r882
r917
Open this puzzle in the app
Difficulty
Hard
SE rating
4.2
Solution steps
76

Techniques this puzzle needs

Solved the way the SE rating measures it, reaching for the cheapest technique that still makes progress, this puzzle needs Full House, Naked Single, Hidden Single, Pointing Pair, Pointing Triple, Box Line Reduction, Naked Pair, Hidden Pair, Finned X-Wing, Sashimi X-Wing and XY-Wing. The hardest of them sets its rating; the sudoku difficulty rating guide explains the scale.

Step-by-step solution

Every placement and elimination below is proved by a named technique, in the order the engine found them. Each technique links to its guide. Stuck on a different puzzle? The step-by-step solver narrates any grid you paste.

Show all 76 steps
  1. The Hidden Single places 2 in r1c8. Hidden Single
  2. The Hidden Single places 1 in r1c3. Hidden Single
  3. The Hidden Single places 2 in r9c2. Hidden Single
  4. The Hidden Single places 5 in r3c6. Hidden Single
  5. The Hidden Single places 2 in r6c9. Hidden Single
  6. The Hidden Single places 6 in r4c9. Hidden Single
  7. The Pointing Pair removes 3 from r3c8, r3c9. Pointing Pair
  8. The Pointing Pair removes 9 from r4c1, r5c1, r8c1. Pointing Pair
  9. The Pointing Pair removes 4 from r5c8. Pointing Pair
  10. The Pointing Pair removes 6 from r8c4, r8c6. Pointing Pair
  11. The Pointing Pair removes 3 from r4c7, r7c7, r9c7. Pointing Pair
  12. The Pointing Pair removes 9 from r4c7, r6c7, r9c7. Pointing Pair
  13. The Pointing Pair removes 3 from r8c8, r9c8. Pointing Pair
  14. The Pointing Triple removes 9 from r8c8, r9c8. Pointing Triple
  15. The Box Line Reduction removes 6 from r5c4, r5c5, r6c4, r6c5. Box Line Reduction
  16. The Naked Pair removes 4 from r5c1. Naked Pair
  17. The Hidden Single places 4 in r5c3. Hidden Single
  18. The Pointing Pair removes 5 from r7c1, r8c1. Pointing Pair
  19. The Pointing Triple removes 9 from r8c2. Pointing Triple
  20. The Box Line Reduction removes 4 from r1c7, r2c7. Box Line Reduction
  21. The Hidden Pair removes 3, 5 from r1c5, r9c5, r9c5. Hidden Pair
  22. The Pointing Pair removes 3 from r4c4, r5c4, r7c4, r8c4, r9c4. Pointing Pair
  23. The Hidden Pair removes 5, 8, 4 from r9c3, r9c3, r9c9. Hidden Pair
  24. The Hidden Single places 8 in r9c7. Hidden Single
  25. The Hidden Single places 4 in r6c7. Hidden Single
  26. The Naked Pair removes 9, 5 from r6c2, r6c4. Naked Pair
  27. The Finned X-Wing removes 5 from r4c4. Finned X-Wing
  28. The Sashimi X-Wing removes 5 from r5c4. Sashimi X-Wing
  29. The Pointing Triple removes 5 from r7c5. Pointing Triple
  30. The XY-Wing removes 7 from r7c7. XY-Wing
  31. The Hidden Single places 7 in r7c1. Hidden Single
  32. The Hidden Single places 8 in r4c1. Hidden Single
  33. The Hidden Single places 5 in r5c1. Hidden Single
  34. The Hidden Single places 8 in r3c2. Hidden Single
  35. The Hidden Single places 3 in r8c2. Hidden Single
  36. The Hidden Single places 8 in r7c3. Hidden Single
  37. The Hidden Single places 5 in r8c3. Hidden Single
  38. The Hidden Single places 8 in r6c4. Hidden Single
  39. The Hidden Single places 3 in r5c6. Hidden Single
  40. The Hidden Single places 3 in r4c8. Hidden Single
  41. The Hidden Single places 6 in r5c2. Hidden Single
  42. The Hidden Single places 9 in r4c2. Hidden Single
  43. The Full House places 1 in r6c2. Full House
  44. The Hidden Single places 1 in r4c4. Hidden Single
  45. The Hidden Single places 7 in r4c7. Hidden Single
  46. The Full House places 5 in r4c5. Full House
  47. The Hidden Single places 7 in r5c4. Hidden Single
  48. The Hidden Single places 2 in r7c4. Hidden Single
  49. The Hidden Single places 5 in r9c4. Hidden Single
  50. The Hidden Single places 6 in r1c4. Hidden Single
  51. The Hidden Single places 3 in r1c7. Hidden Single
  52. The Hidden Single places 9 in r1c1. Hidden Single
  53. The Full House places 4 in r1c5. Full House
  54. The Full House places 3 in r2c4. Full House
  55. The Full House places 4 in r8c4. Full House
  56. The Hidden Single places 2 in r5c5. Hidden Single
  57. The Full House places 9 in r5c8. Full House
  58. The Full House places 5 in r6c8. Full House
  59. The Hidden Single places 1 in r7c9. Hidden Single
  60. The Hidden Single places 1 in r3c8. Hidden Single
  61. The Hidden Single places 3 in r9c9. Hidden Single
  62. The Naked Single places 4 in r2c1. Naked Single
  63. The Full House places 6 in r8c1. Full House
  64. The Full House places 9 in r2c7. Full House
  65. The Full House places 5 in r7c7. Full House
  66. The Full House places 3 in r7c5. Full House
  67. The Full House places 3 in r3c3. Full House
  68. The Full House places 4 in r3c9. Full House
  69. The Full House places 9 in r9c3. Full House
  70. The Full House places 9 in r8c9. Full House
  71. The Naked Single places 9 in r6c5. Naked Single
  72. The Full House places 6 in r9c5. Full House
  73. The Full House places 6 in r6c6. Full House
  74. The Full House places 1 in r8c6. Full House
  75. The Full House places 7 in r8c8. Full House
  76. The Full House places 4 in r9c8. Full House
Show the completed grid
The completed grid for October 13, 2026.
c1c2c3c4c5c6c7c8c9
r1951648327
r2476312985
r3283975614
r4892154736
r5564723198
r6317896452
r7748239561
r8635481279
r9129567843

More daily puzzles

Every day since the archive began has its own page. Browse the Daily sudoku archive, October 2026, or go back to today’s daily sudoku.