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
272		1
273		1
274		6
275		3
276		30
277		17
278		68
279		44
280		105
281		61
282		198
283		117
284		300
285		171
286		380
287		230
288		427
289		214
290		351
291		165
292		284
293		141
294		193
295		106
296		118
297		58
298		111
299		51
300		116
301		49
302		127
303		80
304		143
305		85
306		158
307		85
308		145
309		69
310		114
311		53
312		79
313		48
314		48
315		20
316		31
317		8
318		12
319		3
320		4
322		1
324		1
Sum		5430

Distribution of type

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

Type	Count
Symmetrical Sudoku	5430