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Daily Sudoku for September 19, 2026

Updated

The daily sudoku for September 19, 2026 is a Hard puzzle with 26 clues and an SE rating of 3.4. 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 September 19, 2026.
c1c2c3c4c5c6c7c8c9
r1968
r216392
r327
r463487
r55
r653
r7829
r858
r9274
Open this puzzle in the app
Difficulty
Hard
SE rating
3.4
Solution steps
56

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 and Finned X-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 56 steps
  1. The Hidden Single places 2 in r1c3. Hidden Single
  2. The Hidden Single places 7 in r1c5. Hidden Single
  3. The Hidden Single places 5 in r4c7. Hidden Single
  4. The Hidden Single places 5 in r1c9. Hidden Single
  5. The Hidden Single places 3 in r1c8. Hidden Single
  6. The Hidden Single places 8 in r5c6. Hidden Single
  7. The Hidden Single places 7 in r8c7. Hidden Single
  8. The Hidden Single places 8 in r3c7. Hidden Single
  9. The Hidden Single places 6 in r3c9. Hidden Single
  10. The Hidden Single places 3 in r9c9. Hidden Single
  11. The Hidden Single places 1 in r1c7. Hidden Single
  12. The Full House places 4 in r1c6. Full House
  13. The Full House places 4 in r2c9. Full House
  14. The Hidden Single places 4 in r8c5. Hidden Single
  15. The Hidden Single places 3 in r5c5. Hidden Single
  16. The Hidden Single places 2 in r5c9. Hidden Single
  17. The Full House places 1 in r6c9. Full House
  18. The Hidden Single places 4 in r5c7. Hidden Single
  19. The Full House places 6 in r9c7. Full House
  20. The Full House places 1 in r7c8. Full House
  21. The Hidden Single places 6 in r5c8. Hidden Single
  22. The Full House places 9 in r6c8. Full House
  23. The Hidden Single places 6 in r6c5. Hidden Single
  24. The Hidden Single places 2 in r4c5. Hidden Single
  25. The Hidden Single places 2 in r6c2. Hidden Single
  26. The Hidden Single places 2 in r8c6. Hidden Single
  27. The Hidden Single places 6 in r8c3. Hidden Single
  28. The Naked Single places 5 in r2c5. Naked Single
  29. The Naked Single places 7 in r6c4. Naked Single
  30. The Naked Single places 6 in r7c6. Naked Single
  31. The Finned X-Wing removes 9 from r9c5. Finned X-Wing
  32. The Hidden Single places 9 in r3c5. Hidden Single
  33. The Full House places 1 in r9c5. Full House
  34. The Full House places 1 in r3c6. Full House
  35. The Full House places 9 in r4c6. Full House
  36. The Full House places 1 in r4c2. Full House
  37. The Full House places 1 in r5c4. Full House
  38. The Hidden Single places 1 in r8c1. Hidden Single
  39. The Hidden Single places 9 in r5c3. Hidden Single
  40. The Full House places 7 in r5c1. Full House
  41. The Hidden Single places 7 in r2c2. Hidden Single
  42. The Full House places 8 in r2c1. Full House
  43. The Hidden Single places 8 in r9c2. Hidden Single
  44. The Hidden Single places 9 in r8c2. Hidden Single
  45. The Full House places 3 in r8c4. Full House
  46. The Hidden Single places 7 in r7c3. Hidden Single
  47. The Hidden Single places 8 in r6c3. Hidden Single
  48. The Full House places 4 in r6c1. Full House
  49. The Hidden Single places 4 in r3c3. Hidden Single
  50. The Full House places 5 in r9c3. Full House
  51. The Full House places 9 in r9c4. Full House
  52. The Full House places 5 in r7c4. Full House
  53. The Hidden Single places 5 in r3c1. Hidden Single
  54. The Full House places 3 in r7c1. Full House
  55. The Full House places 3 in r3c2. Full House
  56. The Full House places 4 in r7c2. Full House
Show the completed grid
The completed grid for September 19, 2026.
c1c2c3c4c5c6c7c8c9
r1962874135
r2871653924
r3534291876
r4613429587
r5759138462
r6428765391
r7347586219
r8196342758
r9285917643

More daily puzzles

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