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Daily Sudoku — 7 August 2026

The puzzle

  • 7 August 2026
  • Easy
  • 40 clues
Puzzle
·7·5834·1
1·4······
5··16··7·
2··3567··
35·4···9·
417·9·6·3
·49·251··
6·1·49··8
··5····47
Solution
972583461
164972385
583164279
298356714
356417892
417298653
749825136
631749528
825631947

Solve it in the app to get on the board

Step-by-step solution

Every cell below is filled by the same hint engine the app uses, in the order it can be deduced — 41 steps using 2 techniques.

Techniques used

  • Hidden Single — inside one row, column or box this digit fits in only one cell, so it must go there
  • Naked Single — every other digit is already used in this cell's row, column or box, so only one candidate is left
  1. R3C6 = 4 · Hidden SingleIn the top-centre 3×3 box, 4 fits in only one cell. Looking at the other empty cells:- Because row 2 already has a 4, R2C4, R2C5 and R2C6 cannot hold 4.So 4 must go in R3C6.
  2. R2C4 = 9 · Hidden SingleIn the top-centre 3×3 box, 9 fits in only one cell. Looking at the other empty cells:- Because column 5 already has a 9, R2C5 cannot hold 9.- Because column 6 already has a 9, R2C6 cannot hold 9.So 9 must go in R2C4.
  3. R2C6 = 2 · Hidden SingleIn the top-centre 3×3 box, 2 fits in only one cell. Looking at the other empty cells:- Because column 5 already has a 2, R2C5 cannot hold 2.So 2 must go in R2C6.
  4. R2C5 = 7 · Naked SingleLooking at R2C5:- Row 2 already has 1, 2, 4 and 9 → ruled out.- Column 5 already has 5, 6 and 8 → ruled out.- The top-centre 3×3 box already has 3 → ruled out.So this cell can only be 7.
  5. R5C3 = 6 · Hidden SingleIn the middle-left 3×3 box, 6 fits in only one cell. Looking at the other empty cells:- Because row 4 already has a 6, R4C2 and R4C3 cannot hold 6.So 6 must go in R5C3.
  6. R2C2 = 6 · Hidden SingleIn the top-left 3×3 box, 6 fits in only one cell. Looking at the other empty cells:- Because column 1 already has a 6, R1C1 cannot hold 6.- Because column 3 already has a 6, R1C3 cannot hold 6.- Because row 3 already has a 6, R3C2 and R3C3 cannot hold 6.So 6 must go in R2C2.
  7. R1C8 = 6 · Hidden SingleIn the top-right 3×3 box, 6 fits in only one cell. Looking at the other empty cells:- Because row 2 already has a 6, R2C7, R2C8 and R2C9 cannot hold 6.- Because row 3 already has a 6, R3C7 and R3C9 cannot hold 6.So 6 must go in R1C8.
  8. R4C2 = 9 · Hidden SingleIn the middle-left 3×3 box, 9 fits in only one cell. Looking at the other empty cells:- Because column 3 already has a 9, R4C3 cannot hold 9.So 9 must go in R4C2.
  9. R4C3 = 8 · Naked SingleLooking at R4C3:- Row 4 already has 2, 3, 5, 6, 7 and 9 → ruled out.- Column 3 already has 1 and 4 → ruled out.So this cell can only be 8.
  10. R3C2 = 8 · Hidden SingleIn the top-left 3×3 box, 8 fits in only one cell. Looking at the other empty cells:- Because row 1 already has a 8, R1C1 and R1C3 cannot hold 8.- Because column 3 already has a 8, R3C3 cannot hold 8.So 8 must go in R3C2.
  11. R3C3 = 3 · Hidden SingleIn the top-left 3×3 box, 3 fits in only one cell. Looking at the other empty cells:- Because row 1 already has a 3, R1C1 and R1C3 cannot hold 3.So 3 must go in R3C3.
  12. R1C3 = 2 · Naked SingleLooking at R1C3:- Row 1 already has 1, 3, 4, 5, 6, 7 and 8 → ruled out.- Column 3 already has 9 → ruled out.So this cell can only be 2.
  13. R1C1 = 9 · Naked SingleLooking at R1C1:- Row 1 already has 1, 2, 3, 4, 5, 6, 7 and 8 → ruled out.So this cell can only be 9.
  14. R6C4 = 2 · Hidden SingleIn the centre 3×3 box, 2 fits in only one cell. Looking at the other empty cells:- Because column 5 already has a 2, R5C5 cannot hold 2.- Because column 6 already has a 2, R5C6 and R6C6 cannot hold 2.So 2 must go in R6C4.
  15. R5C6 = 7 · Hidden SingleIn the centre 3×3 box, 7 fits in only one cell. Looking at the other empty cells:- Because column 5 already has a 7, R5C5 cannot hold 7.- Because row 6 already has a 7, R6C6 cannot hold 7.So 7 must go in R5C6.
  16. R5C5 = 1 · Hidden SingleIn the centre 3×3 box, 1 fits in only one cell. Looking at the other empty cells:- Because row 6 already has a 1, R6C6 cannot hold 1.So 1 must go in R5C5.
  17. R9C5 = 3 · Naked SingleLooking at R9C5:- Row 9 already has 4, 5 and 7 → ruled out.- Column 5 already has 1, 2, 6, 8 and 9 → ruled out.So this cell can only be 3.
  18. R6C6 = 8 · Naked SingleLooking at R6C6:- Row 6 already has 1, 2, 3, 4, 6, 7 and 9 → ruled out.- Column 6 already has 5 → ruled out.So this cell can only be 8.
  19. R6C8 = 5 · Naked SingleLooking at R6C8:- Row 6 already has 1, 2, 3, 4, 6, 7, 8 and 9 → ruled out.So this cell can only be 5.
  20. R9C6 = 1 · Naked SingleLooking at R9C6:- Row 9 already has 3, 4, 5 and 7 → ruled out.- Column 6 already has 2, 6, 8 and 9 → ruled out.So this cell can only be 1.
  21. R4C8 = 1 · Hidden SingleIn the middle-right 3×3 box, 1 fits in only one cell. Looking at the other empty cells:- Because column 9 already has a 1, R4C9 cannot hold 1.- Because row 5 already has a 1, R5C7 and R5C9 cannot hold 1.So 1 must go in R4C8.
  22. R4C9 = 4 · Naked SingleLooking at R4C9:- Row 4 already has 1, 2, 3, 5, 6, 7, 8 and 9 → ruled out.So this cell can only be 4.
  23. R5C7 = 8 · Hidden SingleIn the middle-right 3×3 box, 8 fits in only one cell. Looking at the other empty cells:- Because column 9 already has a 8, R5C9 cannot hold 8.So 8 must go in R5C7.
  24. R5C9 = 2 · Naked SingleLooking at R5C9:- Row 5 already has 1, 3, 4, 5, 6, 7, 8 and 9 → ruled out.So this cell can only be 2.
  25. R3C7 = 2 · Hidden SingleIn the top-right 3×3 box, 2 fits in only one cell. Looking at the other empty cells:- Because row 2 already has a 2, R2C7, R2C8 and R2C9 cannot hold 2.- Because column 9 already has a 2, R3C9 cannot hold 2.So 2 must go in R3C7.
  26. R3C9 = 9 · Naked SingleLooking at R3C9:- Row 3 already has 1, 2, 3, 4, 5, 6, 7 and 8 → ruled out.So this cell can only be 9.
  27. R2C8 = 8 · Hidden SingleIn the top-right 3×3 box, 8 fits in only one cell. Looking at the other empty cells:- Because column 7 already has a 8, R2C7 cannot hold 8.- Because column 9 already has a 8, R2C9 cannot hold 8.So 8 must go in R2C8.
  28. R2C7 = 3 · Hidden SingleIn the top-right 3×3 box, 3 fits in only one cell. Looking at the other empty cells:- Because column 9 already has a 3, R2C9 cannot hold 3.So 3 must go in R2C7.
  29. R2C9 = 5 · Naked SingleLooking at R2C9:- Row 2 already has 1, 2, 3, 4, 6, 7, 8 and 9 → ruled out.So this cell can only be 5.
  30. R7C9 = 6 · Naked SingleLooking at R7C9:- Row 7 already has 1, 2, 4, 5 and 9 → ruled out.- Column 9 already has 3, 7 and 8 → ruled out.So this cell can only be 6.
  31. R8C2 = 3 · Hidden SingleIn the bottom-left 3×3 box, 3 fits in only one cell. Looking at the other empty cells:- Because column 1 already has a 3, R7C1 cannot hold 3.- Because row 9 already has a 3, R9C1 and R9C2 cannot hold 3.So 3 must go in R8C2.
  32. R9C2 = 2 · Naked SingleLooking at R9C2:- Row 9 already has 1, 3, 4, 5 and 7 → ruled out.- Column 2 already has 6, 8 and 9 → ruled out.So this cell can only be 2.
  33. R7C1 = 7 · Hidden SingleIn the bottom-left 3×3 box, 7 fits in only one cell. Looking at the other empty cells:- Because row 9 already has a 7, R9C1 cannot hold 7.So 7 must go in R7C1.
  34. R9C1 = 8 · Naked SingleLooking at R9C1:- Row 9 already has 1, 2, 3, 4, 5 and 7 → ruled out.- Column 1 already has 6 and 9 → ruled out.So this cell can only be 8.
  35. R9C4 = 6 · Hidden SingleIn the bottom-centre 3×3 box, 6 fits in only one cell. Looking at the other empty cells:- Because row 7 already has a 6, R7C4 cannot hold 6.- Because row 8 already has a 6, R8C4 cannot hold 6.So 6 must go in R9C4.
  36. R9C7 = 9 · Naked SingleLooking at R9C7:- Row 9 already has 1, 2, 3, 4, 5, 6, 7 and 8 → ruled out.So this cell can only be 9.
  37. R8C7 = 5 · Naked SingleLooking at R8C7:- Row 8 already has 1, 3, 4, 6, 8 and 9 → ruled out.- Column 7 already has 2 and 7 → ruled out.So this cell can only be 5.
  38. R8C4 = 7 · Hidden SingleIn the bottom-centre 3×3 box, 7 fits in only one cell. Looking at the other empty cells:- Because row 7 already has a 7, R7C4 cannot hold 7.So 7 must go in R8C4.
  39. R8C8 = 2 · Naked SingleLooking at R8C8:- Row 8 already has 1, 3, 4, 5, 6, 7, 8 and 9 → ruled out.So this cell can only be 2.
  40. R7C4 = 8 · Naked SingleLooking at R7C4:- Row 7 already has 1, 2, 4, 5, 6, 7 and 9 → ruled out.- Column 4 already has 3 → ruled out.So this cell can only be 8.
  41. R7C8 = 3 · Naked SingleLooking at R7C8:- Row 7 already has 1, 2, 4, 5, 6, 7, 8 and 9 → ruled out.So this cell can only be 3.

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