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Daily Sudoku for September 21, 2026

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The daily sudoku for September 21, 2026 is a Easy puzzle with 31 clues and an SE rating of 1.5. 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 Easy daily sudoku for September 21, 2026.
c1c2c3c4c5c6c7c8c9
r179
r26352
r3594
r419
r55168
r64813
r7347
r88436
r928794
Open this puzzle in the app
Difficulty
Easy
SE rating
1.5
Solution steps
50

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 and Hidden Single. 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 50 steps
  1. The Hidden Single places 9 in r2c2. Hidden Single
  2. The Hidden Single places 3 in r4c2. Hidden Single
  3. The Hidden Single places 8 in r3c2. Hidden Single
  4. The Hidden Single places 8 in r4c1. Hidden Single
  5. The Hidden Single places 2 in r6c2. Hidden Single
  6. The Hidden Single places 6 in r9c2. Hidden Single
  7. The Full House places 1 in r8c2. Full House
  8. The Hidden Single places 6 in r6c3. Hidden Single
  9. The Hidden Single places 7 in r5c3. Hidden Single
  10. The Full House places 9 in r5c1. Full House
  11. The Hidden Single places 7 in r8c1. Hidden Single
  12. The Hidden Single places 3 in r5c6. Hidden Single
  13. The Hidden Single places 4 in r5c7. Hidden Single
  14. The Full House places 2 in r5c8. Full House
  15. The Hidden Single places 4 in r2c9. Hidden Single
  16. The Hidden Single places 7 in r2c8. Hidden Single
  17. The Hidden Single places 7 in r3c4. Hidden Single
  18. The Hidden Single places 3 in r3c8. Hidden Single
  19. The Hidden Single places 4 in r4c5. Hidden Single
  20. The Hidden Single places 7 in r4c9. Hidden Single
  21. The Hidden Single places 6 in r4c7. Hidden Single
  22. The Full House places 5 in r6c8. Full House
  23. The Hidden Single places 5 in r1c7. Hidden Single
  24. The Hidden Single places 2 in r1c1. Hidden Single
  25. The Hidden Single places 6 in r3c9. Hidden Single
  26. The Hidden Single places 5 in r4c6. Hidden Single
  27. The Full House places 2 in r4c4. Full House
  28. The Hidden Single places 3 in r1c4. Hidden Single
  29. The Hidden Single places 6 in r1c6. Hidden Single
  30. The Hidden Single places 6 in r7c4. Hidden Single
  31. The Full House places 9 in r6c4. Full House
  32. The Full House places 7 in r6c5. Full House
  33. The Hidden Single places 3 in r9c5. Hidden Single
  34. The Hidden Single places 8 in r1c5. Hidden Single
  35. The Full House places 1 in r2c6. Full House
  36. The Full House places 8 in r2c7. Full House
  37. The Full House places 2 in r3c7. Full House
  38. The Full House places 1 in r3c1. Full House
  39. The Full House places 5 in r9c1. Full House
  40. The Full House places 1 in r9c9. Full House
  41. The Full House places 4 in r1c3. Full House
  42. The Full House places 1 in r1c8. Full House
  43. The Full House places 9 in r7c3. Full House
  44. The Full House places 8 in r7c8. Full House
  45. The Hidden Single places 1 in r7c5. Hidden Single
  46. The Full House places 5 in r8c5. Full House
  47. The Hidden Single places 9 in r8c6. Hidden Single
  48. The Full House places 2 in r7c6. Full House
  49. The Full House places 5 in r7c9. Full House
  50. The Full House places 2 in r8c9. Full House
Show the completed grid
The completed grid for September 21, 2026.
c1c2c3c4c5c6c7c8c9
r1274386519
r2693521874
r3185794236
r4831245697
r5957163428
r6426978153
r7349612785
r8718459362
r9562837941

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.