Sudoku puzzles

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		4
17		7
18		197
19		118
20		1496
21		616
22		3813
23		1003
24		3717
25		793
26		2485
27		612
28		1850
29		451
30		871
Sum		18033
31		133
32		155
33		12
34		12
Sum		312

Distribution of type

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

Type	Count
Symmetrical Sudoku	18345