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
Sum		0
254		1
256		1
258		2
259		1
260		5
261		4
262		22
263		7
264		37
265		12
266		65
267		27
268		76
269		25
270		80
271		18
272		104
273		19
274		66
275		24
276		60
277		21
278		39
279		11
280		40
281		15
282		19
283		5
284		25
285		7
286		28
287		7
288		28
289		7
290		37
291		6
292		23
293		5
294		14
295		5
296		20
297		4
298		13
299		1
300		6
302		2
303		2
304		1
306		1
309		1
Sum		1049

Distribution of type

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

Type	Count
Symmetrical Sudoku	1049