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

This Sudoku Puzzle has 76 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Triple, Swordfish, Empty Rectangle, Naked Single, Hidden Rectangle, undefined, Finned Jellyfish, Locked Candidates Type 2 (Claiming), AIC, Skyscraper, Full House techniques.

Try To Solve This Puzzle

## Solution Steps:

1. Row 1 / Column 2 → 3 (Hidden Single)
2. Row 3 / Column 5 → 3 (Hidden Single)
3. Row 3 / Column 6 → 1 (Hidden Single)
4. Row 4 / Column 4 → 1 (Hidden Single)
5. Row 1 / Column 6 → 9 (Hidden Single)
6. Row 7 / Column 5 → 1 (Hidden Single)
7. Row 8 / Column 7 → 1 (Hidden Single)
8. Row 5 / Column 9 → 1 (Hidden Single)
9. Locked Candidates Type 1 (Pointing): 4 in b2 => r2c28<>4
10. Row 7 / Column 2 → 4 (Hidden Single)
11. Row 3 / Column 8 → 4 (Hidden Single)
12. Row 2 / Column 6 → 4 (Hidden Single)
13. Row 9 / Column 4 → 4 (Hidden Single)
14. Locked Candidates Type 1 (Pointing): 8 in b4 => r5c456<>8
15. Naked Triple: 5,7,9 in r4c12,r6c2 => r5c13<>5, r5c13<>7, r5c13<>9
16. Locked Candidates Type 1 (Pointing): 9 in b4 => r4c8<>9
17. Swordfish: 2 r139 c157 => r25c5,r7c17<>2
18. Empty Rectangle: 5 in b4 (r2c28) => r4c8<>5
19. Row 4 / Column 8 → 6 (Naked Single)
20. Row 6 / Column 6 → 6 (Hidden Single)
21. Row 6 / Column 4 → 8 (Hidden Single)
22. Row 5 / Column 4 → 3 (Hidden Single)
23. Row 5 / Column 6 → 2 (Hidden Single)
24. Locked Candidates Type 1 (Pointing): 8 in b2 => r9c5<>8
25. Hidden Rectangle: 3/5 in r6c89,r7c89 => r7c9<>5
26. Finned X-Wing: 5 r26 c28 fr6c9 => r5c8<>5
27. Row 5 / Column 8 → 9 (Naked Single)
28. Finned Jellyfish: 7 r1356 c2579 fr1c1 fr1c3 fr3c1 fr3c3 => r2c2<>7
29. Locked Candidates Type 2 (Claiming): 7 in r2 => r1c5<>7
30. XY-Chain: 5 5- r2c2 -2- r2c4 -7- r2c5 -8- r1c5 -2- r9c5 -5- r5c5 -7- r4c6 -5 => r4c2<>5
31. 2-String Kite: 5 in r4c1,r9c5 (connected by r4c6,r5c5) => r9c1<>5
32. AIC: 2/5 5- r2c8 =5= r2c2 -5- r6c2 =5= r4c1 -5- r4c6 =5= r5c5 -5- r9c5 -2- r7c4 =2= r7c8 -2 => r2c8<>2, r7c8<>5
33. Locked Candidates Type 1 (Pointing): 2 in b3 => r9c7<>2
34. AIC: 3 3- r6c8 -5- r2c8 =5= r2c2 =2= r2c4 -2- r7c4 =2= r7c8 =3= r7c9 -3 => r6c9,r7c8<>3
35. Row 6 / Column 8 → 3 (Hidden Single)
36. Row 7 / Column 9 → 3 (Hidden Single)
37. Skyscraper: 5 in r2c8,r6c9 (connected by r26c2) => r1c9<>5
38. Skyscraper: 5 in r5c5,r6c9 (connected by r9c59) => r5c7<>5
39. Row 5 / Column 7 → 7 (Naked Single)
40. Row 6 / Column 9 → 5 (Full House)
41. Row 6 / Column 2 → 7 (Full House)
42. Row 5 / Column 5 → 5 (Naked Single)
43. Row 4 / Column 6 → 7 (Full House)
44. Row 4 / Column 2 → 9 (Naked Single)
45. Row 4 / Column 1 → 5 (Full House)
46. Row 9 / Column 5 → 2 (Naked Single)
47. Row 1 / Column 5 → 8 (Naked Single)
48. Row 2 / Column 5 → 7 (Full House)
49. Row 2 / Column 4 → 2 (Full House)
50. Row 1 / Column 9 → 7 (Naked Single)
51. Row 2 / Column 2 → 5 (Naked Single)
52. Row 2 / Column 8 → 8 (Full House)
53. Row 8 / Column 2 → 2 (Full House)
54. Row 3 / Column 9 → 6 (Naked Single)
55. Row 9 / Column 9 → 8 (Full House)
56. Row 1 / Column 3 → 4 (Naked Single)
57. Row 7 / Column 8 → 2 (Naked Single)
58. Row 8 / Column 8 → 5 (Full House)
59. Row 3 / Column 7 → 2 (Naked Single)
60. Row 1 / Column 7 → 5 (Full House)
61. Row 1 / Column 1 → 2 (Full House)
62. Row 9 / Column 1 → 9 (Naked Single)
63. Row 5 / Column 3 → 8 (Naked Single)
64. Row 5 / Column 1 → 4 (Full House)
65. Row 8 / Column 6 → 8 (Naked Single)
66. Row 7 / Column 6 → 5 (Full House)
67. Row 3 / Column 1 → 7 (Naked Single)
68. Row 3 / Column 3 → 9 (Full House)
69. Row 7 / Column 1 → 8 (Full House)
70. Row 9 / Column 7 → 6 (Naked Single)
71. Row 7 / Column 7 → 9 (Full House)
72. Row 9 / Column 3 → 5 (Full House)
73. Row 8 / Column 3 → 7 (Naked Single)
74. Row 7 / Column 3 → 6 (Full House)
75. Row 7 / Column 4 → 7 (Full House)
76. Row 8 / Column 4 → 9 (Full House)