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

This Sudoku Puzzle has 85 steps and it is solved using Locked Candidates Type 1 (Pointing), Hidden Pair, undefined, Discontinuous Nice Loop, Naked Pair, Locked Candidates Type 2 (Claiming), Naked Triple, Hidden Rectangle, Grouped AIC, Naked Single, Full House, Hidden Single, AIC techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Locked Candidates Type 1 (Pointing): 1 in b1 => r7c3<>1
2. Locked Candidates Type 1 (Pointing): 3 in b2 => r1c8<>3
3. Locked Candidates Type 1 (Pointing): 6 in b2 => r45c4<>6
4. Locked Candidates Type 1 (Pointing): 7 in b2 => r9c4<>7
5. Locked Candidates Type 1 (Pointing): 1 in b3 => r7c9<>1
6. Locked Candidates Type 1 (Pointing): 3 in b4 => r7c3<>3
7. Locked Candidates Type 1 (Pointing): 2 in b8 => r9c8<>2
8. Hidden Pair: 6,7 in r23c4 => r23c4<>4, r23c4<>8, r3c4<>5
9. Locked Candidates Type 1 (Pointing): 5 in b2 => r1c23<>5
10. Hidden Pair: 6,9 in r45c6 => r4c6<>8, r5c6<>3, r5c6<>4
11. 2-String Kite: 5 in r6c3,r7c9 (connected by r5c9,r6c8) => r7c3<>5
12. Discontinuous Nice Loop: 6 r3c2 -6- r3c4 -7- r3c9 -2- r3c1 =2= r5c1 -2- r4c2 -6- r3c2 => r3c2<>6
13. Discontinuous Nice Loop: 5 r5c1 -5- r5c9 -9- r5c6 -6- r4c6 =6= r4c2 =2= r5c1 => r5c1<>5
14. Locked Candidates Type 1 (Pointing): 5 in b4 => r3c3<>5
15. Naked Pair: 2,6 in r4c2,r5c1 => r5c3<>6
16. Locked Candidates Type 2 (Claiming): 6 in c3 => r2c2,r3c1<>6
17. Naked Triple: 4,8,9 in r2c258 => r2c3<>4, r2c3<>8, r2c9<>9
18. Discontinuous Nice Loop: 6 r9c2 -6- r9c8 =6= r8c8 =9= r8c7 -9- r4c7 =9= r4c6 =6= r4c2 -6- r9c2 => r9c2<>6
19. Discontinuous Nice Loop: 8 r9c5 -8- r2c5 =8= r2c8 -8- r6c8 =8= r4c7 -8- r4c4 -2- r9c4 =2= r9c5 => r9c5<>8
20. Locked Candidates Type 2 (Claiming): 8 in c5 => r1c46<>8
21. Hidden Rectangle: 1/2 in r5c45,r9c45 => r5c4<>2
22. Grouped AIC: 2 2- r1c2 =2= r1c89 -2- r3c9 -7- r2c9 -1- r2c3 =1= r1c3 =8= r3c13 -8- r3c7 =8= r4c7 -8- r4c4 -2- r4c2 =2= r5c1 -2 => r3c1,r4c2<>2
23. Row 4 / Column 2 → 6 (Naked Single)
24. Row 4 / Column 6 → 9 (Naked Single)
25. Row 5 / Column 1 → 2 (Naked Single)
26. Row 4 / Column 7 → 8 (Naked Single)
27. Row 4 / Column 4 → 2 (Full House)
28. Row 5 / Column 6 → 6 (Naked Single)
29. Row 9 / Column 5 → 2 (Hidden Single)
30. AIC: 2/3 3- r3c8 =3= r3c7 =4= r5c7 =9= r5c9 =5= r7c9 =2= r7c8 -2 => r3c8<>2, r7c8<>3
31. Discontinuous Nice Loop: 1 r8c1 -1- r8c5 =1= r5c5 -1- r5c4 -4- r5c7 -9- r8c7 =9= r8c8 =6= r8c1 => r8c1<>1
32. Hidden Rectangle: 5/6 in r8c18,r9c18 => r9c8<>5
33. Discontinuous Nice Loop: 8 r3c8 -8- r3c1 -5- r8c1 -6- r8c8 =6= r9c8 =3= r3c8 => r3c8<>8
34. Locked Candidates Type 2 (Claiming): 8 in r3 => r1c3<>8
35. Hidden Rectangle: 4/8 in r1c58,r2c58 => r1c8<>4
36. AIC: 2/5 2- r7c8 =2= r1c8 =8= r1c5 =3= r5c5 -3- r5c3 -5- r5c9 =5= r7c9 -5 => r7c9<>2, r7c8<>5
37. Row 7 / Column 8 → 2 (Naked Single)
38. Discontinuous Nice Loop: 4/5 r1c6 =3= r1c5 -3- r5c5 =3= r5c3 =5= r5c9 =9= r5c7 -9- r8c7 =9= r8c8 =5= r6c8 -5- r6c3 -3- r6c6 =3= r1c6 => r1c6<>4, r1c6<>5
39. Row 1 / Column 6 → 3 (Naked Single)
40. Row 1 / Column 4 → 5 (Hidden Single)
41. Row 5 / Column 5 → 3 (Hidden Single)
42. Row 5 / Column 3 → 5 (Naked Single)
43. Row 6 / Column 3 → 3 (Full House)
44. Row 5 / Column 9 → 9 (Naked Single)
45. Row 5 / Column 7 → 4 (Naked Single)
46. Row 5 / Column 4 → 1 (Full House)
47. Row 6 / Column 8 → 5 (Full House)
48. Row 9 / Column 4 → 8 (Naked Single)
49. Row 6 / Column 4 → 4 (Naked Single)
50. Row 6 / Column 6 → 8 (Full House)
51. Row 8 / Column 5 → 1 (Hidden Single)
52. Row 7 / Column 9 → 5 (Hidden Single)
53. Row 8 / Column 7 → 9 (Hidden Single)
54. Row 8 / Column 8 → 6 (Naked Single)
55. Row 8 / Column 1 → 5 (Naked Single)
56. Row 9 / Column 8 → 3 (Naked Single)
57. Row 3 / Column 1 → 8 (Naked Single)
58. Row 3 / Column 8 → 4 (Naked Single)
59. Row 9 / Column 2 → 7 (Naked Single)
60. Row 7 / Column 1 → 1 (Naked Single)
61. Row 9 / Column 1 → 6 (Full House)
62. Row 3 / Column 3 → 6 (Naked Single)
63. Row 8 / Column 2 → 4 (Naked Single)
64. Row 8 / Column 6 → 7 (Full House)
65. Row 9 / Column 6 → 5 (Naked Single)
66. Row 9 / Column 7 → 1 (Full House)
67. Row 7 / Column 7 → 7 (Full House)
68. Row 7 / Column 6 → 4 (Full House)
69. Row 3 / Column 7 → 3 (Full House)
70. Row 2 / Column 3 → 1 (Naked Single)
71. Row 3 / Column 4 → 7 (Naked Single)
72. Row 2 / Column 4 → 6 (Full House)
73. Row 2 / Column 2 → 9 (Naked Single)
74. Row 7 / Column 2 → 3 (Naked Single)
75. Row 7 / Column 3 → 8 (Full House)
76. Row 1 / Column 3 → 4 (Full House)
77. Row 2 / Column 9 → 7 (Naked Single)
78. Row 3 / Column 9 → 2 (Naked Single)
79. Row 1 / Column 9 → 1 (Full House)
80. Row 3 / Column 2 → 5 (Full House)
81. Row 1 / Column 2 → 2 (Full House)
82. Row 2 / Column 8 → 8 (Naked Single)
83. Row 1 / Column 8 → 9 (Full House)
84. Row 1 / Column 5 → 8 (Full House)
85. Row 2 / Column 5 → 4 (Full House)