Need help with this

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Need help with this

Postby Sebinator0815 » Thu Mar 14, 2019 6:22 pm

Would be great, if anybody would help me with the next step :)
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Sebinator0815
 
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Re: Need help with this

Postby SpAce » Sat Mar 16, 2019 11:56 pm

Hi Sebinator0815. It appears that you've made some mistakes along the way. You have six false numbers on your grid. The correct pencilmarks after basic techniques:

Code: Select all
.---------------.--------------.---------------.
| 6    7    4   | 39  138  189 | 5   138   2   |
| 189  189  5   | 2   36   4   | 19  367   37  |
| 129  129  3   | 5   168  7   | 4   1689  189 |
:---------------+--------------+---------------:
| 5    6    189 | 39  2    189 | 7   139   4   |
| 179  3    179 | 6   4    5   | 8   2     19  |
| 189  4    2   | 7   138  189 | 6   5     139 |
:---------------+--------------+---------------:
| 3    19   6   | 4   5    2   | 19  78    78  |
| 278  28   78  | 1   9    6   | 3   4     5   |
| 4    5    19  | 8   7    3   | 2   19    6   |
'---------------'--------------'---------------'

For the rest you need a bit more advanced techniques. Are you familiar with things like Empty Rectangles, X-Wings, XY-Wings, Remote Pairs? If not, this might be a bit tough puzzle for you. We can help, though, but first you need to correct your mistakes.
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Re: Need help with this

Postby tarek » Sun Mar 17, 2019 10:45 am

I'm not sure if this is helpful but this is a printable Empty 9x9 sudoku sheet with the pencilmarks in faint shading in the background of each cell. This may help in reducing these mistakes

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