Solutions · Extreme Killer Sudoku

Extreme Killer Sudoku 1: solutions

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

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