6
7
8
9
4
2
2
3
5
1
8
9
6
5
9
8
2
4
6
1
4
5
8
1
4
6
5
2
2
9
7
5
8
6
1

This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, undefined, Naked Single, Full House, Locked Pair, Continuous Nice Loop, Discontinuous Nice Loop, Locked Candidates Type 2 (Claiming), Naked Triple, Remote Pair techniques.

Try To Solve This Puzzle

Solution Steps:

  1. Row 3 / Column 1 → 5 (Hidden Single)
  2. Locked Candidates Type 1 (Pointing): 9 in b8 => r7c9<>9
  3. Naked Pair: 1,3 in r14c1 => r6c1<>1, r68c1<>3
  4. X-Wing: 6 r59 c24 => r68c2<>6
  5. Row 8 / Column 2 → 3 (Naked Single)
  6. Row 1 / Column 2 → 1 (Naked Single)
  7. Row 1 / Column 1 → 3 (Full House)
  8. Row 4 / Column 1 → 1 (Naked Single)
  9. Row 6 / Column 7 → 1 (Hidden Single)
  10. Locked Candidates Type 1 (Pointing): 8 in b6 => r5c3<>8
  11. Locked Pair: 3,7 in r45c3 => r6c3<>3, r456c2,r679c3<>7
  12. Continuous Nice Loop: 4/9 6= r5c2 =2= r5c6 -2- r9c6 =2= r8c5 =6= r8c1 -6- r6c1 =6= r5c2 =2 => r8c5<>4, r5c2<>9
  13. Discontinuous Nice Loop: 9 r5c7 -9- r5c4 -6- r5c2 =6= r9c2 -6- r8c1 -8- r8c7 =8= r5c7 => r5c7<>9
  14. Locked Candidates Type 2 (Claiming): 9 in r5 => r6c6<>9
  15. Naked Triple: 3,7,8 in r5c378 => r5c6<>3, r5c6<>7
  16. Discontinuous Nice Loop: 5 r7c3 -5- r6c3 -8- r6c1 -6- r6c5 =6= r8c5 -6- r9c4 -1- r9c3 =1= r7c3 => r7c3<>5
  17. Discontinuous Nice Loop: 3/4/7 r9c9 =2= r9c6 -2- r5c6 =2= r5c2 =6= r9c2 =7= r7c2 =5= r7c8 =8= r8c7 =9= r8c9 =2= r9c9 => r9c9<>3, r9c9<>4, r9c9<>7
  18. Row 9 / Column 9 → 2 (Naked Single)
  19. Row 8 / Column 5 → 2 (Hidden Single)
  20. Row 5 / Column 6 → 2 (Hidden Single)
  21. Row 5 / Column 2 → 6 (Naked Single)
  22. Row 5 / Column 4 → 9 (Naked Single)
  23. Row 6 / Column 1 → 8 (Naked Single)
  24. Row 8 / Column 1 → 6 (Full House)
  25. Row 7 / Column 4 → 1 (Naked Single)
  26. Row 9 / Column 4 → 6 (Full House)
  27. Row 6 / Column 3 → 5 (Naked Single)
  28. Row 6 / Column 2 → 9 (Naked Single)
  29. Row 4 / Column 2 → 2 (Naked Single)
  30. Row 6 / Column 5 → 6 (Hidden Single)
  31. Row 7 / Column 6 → 9 (Hidden Single)
  32. Row 9 / Column 3 → 1 (Hidden Single)
  33. Naked Pair: 3,7 in r4c35 => r4c79<>3, r4c79<>7
  34. Naked Pair: 4,9 in r48c9 => r7c9<>4
  35. Remote Pair: 3/7 r4c5 -7- r6c6 -3- r6c9 -7- r7c9 => r7c5<>3
  36. Row 7 / Column 5 → 4 (Naked Single)
  37. Row 9 / Column 6 → 3 (Full House)
  38. Row 1 / Column 5 → 7 (Naked Single)
  39. Row 1 / Column 6 → 4 (Full House)
  40. Row 6 / Column 6 → 7 (Full House)
  41. Row 4 / Column 5 → 3 (Full House)
  42. Row 6 / Column 9 → 3 (Full House)
  43. Row 7 / Column 3 → 8 (Naked Single)
  44. Row 4 / Column 3 → 7 (Naked Single)
  45. Row 5 / Column 3 → 3 (Full House)
  46. Row 8 / Column 3 → 4 (Full House)
  47. Row 7 / Column 9 → 7 (Naked Single)
  48. Row 8 / Column 9 → 9 (Naked Single)
  49. Row 4 / Column 9 → 4 (Full House)
  50. Row 8 / Column 7 → 8 (Full House)
  51. Row 4 / Column 7 → 9 (Full House)
  52. Row 7 / Column 2 → 5 (Naked Single)
  53. Row 7 / Column 8 → 3 (Full House)
  54. Row 9 / Column 2 → 7 (Full House)
  55. Row 9 / Column 7 → 4 (Naked Single)
  56. Row 9 / Column 8 → 5 (Full House)
  57. Row 5 / Column 7 → 7 (Naked Single)
  58. Row 3 / Column 7 → 3 (Full House)
  59. Row 3 / Column 8 → 7 (Full House)
  60. Row 5 / Column 8 → 8 (Full House)
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