## Two solutions ?

Everything about Sudoku that doesn't fit in one of the other sections

### Two solutions ?

While I was solving a rather simple puzzle I noticed that it could have
two solutions. The solutions are almost identical, but still there are two.

Original:

8xx | 9x3 | x7x
5xx | 4xx | xxx
x64 | 2xx | 1xx

xxx | 81x | 32x
xxx | x5x | xx8
xx7 | xx4 | 9xx

12x | xxx | xxx
x3x | xxx | 846
xx9 | xxx | x5x

Solved:

812 | 963 | 574
593 | 471 | 682
764 | 285 | 193 < Swap the 3 and 9 here...

456 | 819 | 327
291 | 357 | 468
387 | 624 | 915

128 | 546 | 739 < and here.
735 | 192 | 846
649 | 738 | 251

It works either way. I thought there could be only one solution.
Have I missed something ?
Putter Man

Posts: 2
Joined: 22 July 2005

If you check the 2nd column of your answer you'll find 2 9's. So you better start again and be more careful. There is only 1 unique solution.
udosuk

Posts: 2698
Joined: 17 July 2005

oops. Thanks.
Putter Man

Posts: 2
Joined: 22 July 2005

### Tree solutions

|812|963|574|
|573|481|692| <--
|964|275|183| <--
|456|819|327|
|291|357|468|
|387|624|915|

|128|546|739|
|735|192|846|
|649|738|251|
SEAN LEE

Posts: 1
Joined: 19 September 2005