Solutions · Extreme Sudoku

Extreme Sudoku 2: solutions

All 150 sudoku puzzles in the book, each solved step by step. The book runs from easiest to hardest: 50 at Expert 5, 50 at Expert 6, 50 at Expert 7. Every page names the key technique, so you can also jump straight to the idea you are missing.

Try a free sample puzzle (PDF) · prints on A4 or US Letter

1. Puzzle 1Expert 5Finned Fish
2. Puzzle 2Expert 5ALS-XZ
3. Puzzle 3Expert 5Nice Loops/AICs
4. Puzzle 4Expert 5XY-Chain
5. Puzzle 5Expert 5ALS-XZ
6. Puzzle 6Expert 5Nice Loops/AICs
7. Puzzle 7Expert 5Nice Loops/AICs
8. Puzzle 8Expert 5ALS-XZ
9. Puzzle 9Expert 6ALS-XZ
10. Puzzle 10Expert 6ALS-XZ
11. Puzzle 11Expert 6ALS-XZ
12. Puzzle 12Expert 6Nice Loops/AICs
13. Puzzle 13Expert 7ALS-XZ
14. Puzzle 14Expert 5ALS-XZ
15. Puzzle 15Expert 5Nice Loops/AICs
16. Puzzle 16Expert 5ALS-XZ
17. Puzzle 17Expert 5Nice Loops/AICs
18. Puzzle 18Expert 5ALS-XZ
19. Puzzle 19Expert 5ALS-XZ
20. Puzzle 20Expert 5Nice Loops/AICs
21. Puzzle 21Expert 5ALS-XZ
22. Puzzle 22Expert 5ALS-XZ
23. Puzzle 23Expert 5ALS-XZ
24. Puzzle 24Expert 6Nice Loops/AICs
25. Puzzle 25Expert 6Nice Loops/AICs
26. Puzzle 26Expert 6Nice Loops/AICs
27. Puzzle 27Expert 7Nice Loops/AICs
28. Puzzle 28Expert 6XY-Chain
29. Puzzle 29Expert 7Nice Loops/AICs
30. Puzzle 30Expert 6Nice Loops/AICs
31. Puzzle 31Expert 6Nice Loops/AICs
32. Puzzle 32Expert 7Nice Loops/AICs
33. Puzzle 33Expert 5ALS-XZ
34. Puzzle 34Expert 6ALS-XZ
35. Puzzle 35Expert 6XY-Chain
36. Puzzle 36Expert 7Finned Fish
37. Puzzle 37Expert 7ALS-XZ
38. Puzzle 38Expert 5Nice Loops/AICs
39. Puzzle 39Expert 6XY-Chain
40. Puzzle 40Expert 7Nice Loops/AICs
41. Puzzle 41Expert 7ALS-XZ
42. Puzzle 42Expert 7XY-Chain
43. Puzzle 43Expert 7Nice Loops/AICs
44. Puzzle 44Expert 5ALS-XZ
45. Puzzle 45Expert 5ALS-XZ
46. Puzzle 46Expert 5XY-Chain
47. Puzzle 47Expert 6XY-Chain
48. Puzzle 48Expert 5Nice Loops/AICs
49. Puzzle 49Expert 5ALS-XZ
50. Puzzle 50Expert 5Nice Loops/AICs
51. Puzzle 51Expert 5Nice Loops/AICs
52. Puzzle 52Expert 5Nice Loops/AICs
53. Puzzle 53Expert 5Nice Loops/AICs
54. Puzzle 54Expert 5ALS-XZ
55. Puzzle 55Expert 5ALS-XZ
56. Puzzle 56Expert 5ALS-XZ
57. Puzzle 57Expert 6ALS-XZ
58. Puzzle 58Expert 6Nice Loops/AICs
59. Puzzle 59Expert 6Nice Loops/AICs
60. Puzzle 60Expert 6Nice Loops/AICs
61. Puzzle 61Expert 6XY-Chain
62. Puzzle 62Expert 6Nice Loops/AICs
63. Puzzle 63Expert 6ALS-XZ
64. Puzzle 64Expert 6ALS-XZ
65. Puzzle 65Expert 6ALS-XZ
66. Puzzle 66Expert 6ALS-XZ
67. Puzzle 67Expert 6ALS-XZ
68. Puzzle 68Expert 6Nice Loops/AICs
69. Puzzle 69Expert 6Nice Loops/AICs
70. Puzzle 70Expert 6XY-Chain
71. Puzzle 71Expert 6Nice Loops/AICs
72. Puzzle 72Expert 6Nice Loops/AICs
73. Puzzle 73Expert 6Nice Loops/AICs
74. Puzzle 74Expert 6Nice Loops/AICs
75. Puzzle 75Expert 7Finned Fish
76. Puzzle 76Expert 7Nice Loops/AICs
77. Puzzle 77Expert 7ALS-XZ
78. Puzzle 78Expert 7ALS-XZ
79. Puzzle 79Expert 7ALS-XZ
80. Puzzle 80Expert 7Nice Loops/AICs
81. Puzzle 81Expert 7Nice Loops/AICs
82. Puzzle 82Expert 7Nice Loops/AICs
83. Puzzle 83Expert 7Nice Loops/AICs
84. Puzzle 84Expert 7ALS-XZ
85. Puzzle 85Expert 7ALS-XZ
86. Puzzle 86Expert 7ALS-XZ
87. Puzzle 87Expert 7Nice Loops/AICs
88. Puzzle 88Expert 7ALS-XZ
89. Puzzle 89Expert 7Nice Loops/AICs
90. Puzzle 90Expert 5XY-Chain
91. Puzzle 91Expert 5Nice Loops/AICs
92. Puzzle 92Expert 5ALS-XZ
93. Puzzle 93Expert 5Nice Loops/AICs
94. Puzzle 94Expert 5ALS-XZ
95. Puzzle 95Expert 5XY-Chain
96. Puzzle 96Expert 5Nice Loops/AICs
97. Puzzle 97Expert 5XY-Chain
98. Puzzle 98Expert 5XY-Chain
99. Puzzle 99Expert 5Nice Loops/AICs
100. Puzzle 100Expert 5XY-Chain
101. Puzzle 101Expert 5XY-Chain
102. Puzzle 102Expert 6ALS-XZ
103. Puzzle 103Expert 6Nice Loops/AICs
104. Puzzle 104Expert 6Nice Loops/AICs
105. Puzzle 105Expert 6Nice Loops/AICs
106. Puzzle 106Expert 6XY-Chain
107. Puzzle 107Expert 6Nice Loops/AICs
108. Puzzle 108Expert 6Nice Loops/AICs
109. Puzzle 109Expert 6Nice Loops/AICs
110. Puzzle 110Expert 7Nice Loops/AICs
111. Puzzle 111Expert 7ALS-XZ
112. Puzzle 112Expert 7WXYZ-Wing
113. Puzzle 113Expert 7Finned Fish
114. Puzzle 114Expert 7Nice Loops/AICs
115. Puzzle 115Expert 7Nice Loops/AICs
116. Puzzle 116Expert 7Nice Loops/AICs
117. Puzzle 117Expert 7XY-Chain
118. Puzzle 118Expert 7ALS-XZ
119. Puzzle 119Expert 7ALS-XZ
120. Puzzle 120Expert 7Nice Loops/AICs
121. Puzzle 121Expert 7Nice Loops/AICs
122. Puzzle 122Expert 7Nice Loops/AICs
123. Puzzle 123Expert 7Nice Loops/AICs
124. Puzzle 124Expert 7WXYZ-Wing
125. Puzzle 125Expert 7ALS-XZ
126. Puzzle 126Expert 7Nice Loops/AICs
127. Puzzle 127Expert 7XY-Chain
128. Puzzle 128Expert 6Nice Loops/AICs
129. Puzzle 129Expert 5Nice Loops/AICs
130. Puzzle 130Expert 5ALS-XZ
131. Puzzle 131Expert 5ALS-XZ
132. Puzzle 132Expert 5ALS-XZ
133. Puzzle 133Expert 5XY-Chain
134. Puzzle 134Expert 6ALS-XZ
135. Puzzle 135Expert 6Nice Loops/AICs
136. Puzzle 136Expert 6Nice Loops/AICs
137. Puzzle 137Expert 6Nice Loops/AICs
138. Puzzle 138Expert 6XY-Chain
139. Puzzle 139Expert 7Nice Loops/AICs
140. Puzzle 140Expert 7ALS-XZ
141. Puzzle 141Expert 7XY-Chain
142. Puzzle 142Expert 6Nice Loops/AICs
143. Puzzle 143Expert 6ALS-XZ
144. Puzzle 144Expert 6Finned Fish
145. Puzzle 145Expert 7ALS-XZ
146. Puzzle 146Expert 7Nice Loops/AICs
147. Puzzle 147Expert 5Nice Loops/AICs
148. Puzzle 148Expert 6XY-Chain
149. Puzzle 149Expert 7ALS-XZ
150. Puzzle 150Expert 7ALS-XZ

Techniques explained: sudoku techniques. Other books: Extreme Sudoku 1 · Extreme Killer Sudoku 1 · Extreme Killer Sudoku 2 · Extreme Sudoku 3 · Extreme Killer Sudoku 3.