## another VERY EASY (!!!) Sudoku, I couldnÂ´t solve at all...

Post the puzzle or solving technique that's causing you trouble and someone will help

### another VERY EASY (!!!) Sudoku, I couldnÂ´t solve at all...

Hi, all,

here is another VERY EASY (!!!) Sudoku, which I tried to solve (# 649807 - very hard):

Code: Select all
`+-----+-----+-----+|. . 7|2 . 6|8 . .||. 9 .|. 8 .|. 2 .||. . 2|3 . 5|9 . .|+-----+-----+-----+|7 . .|. 5 .|. . 4||. 4 .|. 6 .|. 8 .||2 . .|. 1 .|. . 6|+-----+-----+-----+|. . 4|5 . 7|6 . .||. 1 .|. 4 .|. 5 .||. . 5|1 . 8|4 . .|+-----+-----+-----+`

again I could hardly find ANY hidden singles (only 36) - so I had to pencilmark 14 cells:

Code: Select all
`+-------+------+---------+|1. 35 7|2 9 6.|8.. 4 35.||35 9. 6|4 8 1.|357 2 357||4. 8. 2|3 7 5.|9.. 6 1..|+-------+------+---------+|7. 6. 1|8 5 23|23. 9 4..||35 4. 9|7 6 23|1.. 8 235||2. 35 8|9 1 4.|35. 7 6..|+-------+------+---------+|9. 2. 4|5 3 7.|6.. 1 8..||8. 1. 3|6 4 9.|27. 5 27.||6. 7. 5|1 2 8.|4.. 3 9..|+-------+------+---------+`

Any tipps and hints are appreciated. Thanks in advance
NoClue

Posts: 48
Joined: 01 April 2011

### Re: another VERY EASY (!!!) Sudoku, I couldnÂ´t solve at all

Try sudoku explainer.

http://diuf.unifr.ch/people/juillera/Sudoku/Sudoku.html

but

Code: Select all
`+-------------------+-------------------+-------------------+| 1     35    7     | 2     9     6     | 8     4     35    | | 35@   9     6     | 4     8     1     | 357*  2     357   | | 4     8     2     | 3     7     5     | 9     6     1     | +-------------------+-------------------+-------------------+| 7     6     189   | 89    5     23    | 123   39    4     | | 35@   4     19    | 7     6     23    | 1235  8     2359  | | 2     35@   89    | 89    1     4     | 35@   7     6     | +-------------------+-------------------+-------------------+| 9     2     4     | 5     3     7     | 6     1     8     | | 8     1     3     | 6     4     9     | 27    5     27    | | 6     7     5     | 1     2     8     | 4     39    39    | +-------------------+-------------------+-------------------+`

xy chain -
there are 4 positions with 35@
so the 357* on row2col7 cant be a 3 or a 5
C
coloin

Posts: 1733
Joined: 05 May 2005

### Re: another VERY EASY (!!!) Sudoku, I couldnÂ´t solve at all

@ coloin

thanks for the tip with XY-chain and the link of Sudoku-Explainer...
NoClue

Posts: 48
Joined: 01 April 2011