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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
16 17
17 34
18 1329
19 1026
20 13185
21 4264
22 25334
23 3908
24 13657
25 1325
26 3253
27 226
28 358
29 12
30 25

Sum 67953
 
31 1

Sum 1

Distribution of type

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

TypeCount
Symmetrical Sudoku67954