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Daily Sudoku for October 1, 2026

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The daily sudoku for October 1, 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 1, 2026.
c1c2c3c4c5c6c7c8c9
r1615
r2964
r3983
r447
r59
r6624
r7716
r8135
r964852
Open this puzzle in the app
Difficulty
Hard
SE rating
4.2
Solution steps
62

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, Box Line Reduction, Naked Pair, Finned X-Wing, Finned Swordfish 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 62 steps
  1. The Hidden Single places 9 in r1c7. Hidden Single
  2. The Hidden Single places 6 in r3c7. Hidden Single
  3. The Hidden Single places 6 in r5c1. Hidden Single
  4. The Hidden Single places 6 in r4c9. Hidden Single
  5. The Hidden Single places 4 in r5c2. Hidden Single
  6. The Hidden Single places 6 in r8c6. Hidden Single
  7. The Hidden Single places 1 in r6c9. Hidden Single
  8. The Naked Single places 7 in r1c9. Naked Single
  9. The Full House places 8 in r7c9. Full House
  10. The Hidden Single places 8 in r8c1. Hidden Single
  11. The Naked Single places 4 in r8c7. Naked Single
  12. The Hidden Single places 4 in r7c5. Hidden Single
  13. The Naked Single places 3 in r7c7. Naked Single
  14. The Hidden Single places 3 in r9c6. Hidden Single
  15. The Hidden Single places 7 in r9c8. Hidden Single
  16. The Hidden Single places 1 in r2c8. Hidden Single
  17. The Full House places 2 in r2c7. Full House
  18. The Hidden Single places 2 in r8c5. Hidden Single
  19. The Hidden Single places 7 in r8c4. Hidden Single
  20. The Full House places 9 in r8c8. Full House
  21. The Full House places 9 in r7c6. Full House
  22. The Full House places 1 in r9c7. Full House
  23. The Full House places 9 in r9c1. Full House
  24. The Hidden Single places 9 in r4c3. Hidden Single
  25. The Hidden Single places 9 in r6c4. Hidden Single
  26. The Box Line Reduction removes 3 from r4c1, r4c2. Box Line Reduction
  27. The Naked Pair removes 5, 8 from r3c3, r5c3, r5c3. Naked Pair
  28. The Naked Pair removes 5, 8 from r6c1, r6c2, r6c2. Naked Pair
  29. The Finned X-Wing removes 8 from r5c6. Finned X-Wing
  30. The Finned Swordfish removes 5 from r3c1, r3c2. Finned Swordfish
  31. The Pointing Pair removes 5 from r2c6. Pointing Pair
  32. The XY-Wing removes 8 from r5c5. XY-Wing
  33. The Hidden Single places 8 in r5c7. Hidden Single
  34. The Full House places 5 in r6c7. Full House
  35. The Hidden Single places 5 in r2c3. Hidden Single
  36. The Hidden Single places 8 in r1c2. Hidden Single
  37. The Hidden Single places 3 in r6c2. Hidden Single
  38. The Hidden Single places 7 in r3c2. Hidden Single
  39. The Naked Single places 4 in r1c6. Naked Single
  40. The Hidden Single places 4 in r3c1. Hidden Single
  41. The Hidden Single places 1 in r4c1. Hidden Single
  42. The Hidden Single places 5 in r7c1. Hidden Single
  43. The Full House places 2 in r7c2. Full House
  44. The Full House places 5 in r4c2. Full House
  45. The Hidden Single places 2 in r1c1. Hidden Single
  46. The Full House places 3 in r1c4. Full House
  47. The Hidden Single places 2 in r3c4. Hidden Single
  48. The Full House places 5 in r5c4. Full House
  49. The Hidden Single places 2 in r4c8. Hidden Single
  50. The Full House places 3 in r5c8. Full House
  51. The Hidden Single places 3 in r4c5. Hidden Single
  52. The Full House places 8 in r4c6. Full House
  53. The Hidden Single places 8 in r2c5. Hidden Single
  54. The Full House places 7 in r5c5. Full House
  55. The Full House places 1 in r5c6. Full House
  56. The Full House places 2 in r5c3. Full House
  57. The Naked Single places 3 in r2c1. Naked Single
  58. The Full House places 7 in r6c1. Full House
  59. The Full House places 7 in r2c6. Full House
  60. The Full House places 8 in r6c3. Full House
  61. The Full House places 1 in r3c3. Full House
  62. The Full House places 5 in r3c6. Full House
Show the completed grid
The completed grid for October 1, 2026.
c1c2c3c4c5c6c7c8c9
r1286314957
r2395687214
r3471295683
r4159438726
r5642571839
r6738962541
r7527149368
r8813726495
r9964853172

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.