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Distribution of start numbers

This table shows the spread of puzzles mapped to the numbers a puzzle start with. Clicking on the number will give you a random puzzle with that start number count. I've put a sum-line at 30 since some people think a real sudoku should have less than or equal to 30 start numbers.

Starting numbers puzzles in db

Sum 0
 
68 1
70 3
72 22
74 70
76 89
78 140
80 129
82 54
84 44
86 25
88 31
90 30
92 13
94 5

Sum 656

Distribution of type

This table show how many puzzles there are to each puzzle-type

TypeCount
Symmetrical Sudoku656