There is quite a difference of opinion in how Sudoku puzzles are solved.

I belong to a group of seven people who try to solve the hardest of the puzzles that are printed in different newspapers on Sundays. We started doing this because when corresponding with different newspapers about many Sudoku puzzles that we found unsolvable we always got the same response that the puzzles were checked for accuracy by computer and were solvable by LOGIC.

In checking further we found that most of the programs used to solve these puzzles had a guessing factor programmed into them. Now as most everybody knows if the guessing factor is used then LOGIC IS NOT.

Here is a puzzle that two newspapers have printed that seem to be unsolvable logically. Although we have the answer we seven cannot solve it by LOGIC alone.

If anyone would care to try solving this and does succeed please let us know how you did it.

Thanks.

x98x12x4x

5623xxxxx

xxxxx9xxx

xxxxxx6x1

x36xxx59x

1x7xxxxxx

xxx2xxxxx

xxxxx6453

x4x57x82x