## I couldnÂ´t solve THAT EASY Sudoku :-(

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

### I couldnÂ´t solve THAT EASY Sudoku :-(

Hi, all,

I doubt and I fear that I always need help from others to solve Sudokus FOR THE REST OF MY LIFE...

Here is the EXTREMELY EASY Sudoku, which I couldnÂ´t solve (itÂ´s from the website sudoku.spieleck.de - sudoku from April 9th, 2011):

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

Here is the VERY LITTLE part of my TRY of solving:

Code: Select all
`+---------+-----------------+-----------------+|7. 9. 358|23468. 3468. 2468|12356 12348 23568||6. 1. 38.|7..... 3489. 5...|239.. 23489 2389.||4. 2. 358|1..... 3689. 689.|3569. 389.. 7....|+---------+-----------------+-----------------+|19 68 2..|35689. 35689 689.|4.... 7.... 359..||19 68 4..|235689 7.... 2689|12359 1239. 2359.||3. 5. 7..|249... 49... 1...|8.... 6.... 29...|+---------+-----------------+-----------------+|25 3. 69.|45689. 1.... 7...|269.. 289.. 2689.||25 7. 1..|5689.. 5689. 689.|2369. 2389. 4....||8. 4. 69.|69.... 2.... 3...|7.... 5.... 1....|+---------+-----------------+-----------------+`

With this 17-clue Sudoku I hardly found ANY hidden singles (only 16 hidden singles and 1 naked single) - so I had to pencilmark 47 (!!!!!) cells, but I am the ONLY ONE in the WHOLE WORLD who will NEVER BE ABLE to see logical steps ...

Any hints and tips are appreciated
NoClue

Posts: 48
Joined: 01 April 2011

### Re: I couldnÂ´t solve THAT EASY Sudoku :-(

Where in block 8 can you put a 4?

JasonLion
2017 Supporter

Posts: 640
Joined: 25 October 2007
Location: Silver Spring, MD, USA

### Re: I couldnÂ´t solve THAT EASY Sudoku :-(

Hi, JasonLion,

after posting this article I saw that in block 4: r4c1 = 1 and r5c1 = 9

your tip with block 8: r7c4 = 4 - was very helpful too.

Thanks for the tip!
NoClue

Posts: 48
Joined: 01 April 2011

### Re: I couldnÂ´t solve THAT EASY Sudoku :-(

Hi, JasonLion,

with your tip - r7c4 = 4 - I could solve the Sudoku now:

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

Many thanks again for this big help!
NoClue

Posts: 48
Joined: 01 April 2011

NoClue wrote:---I hardly found ANY hidden singles
so I had to pencilmark 47 (!!!!!) cells

when you're solving a tough puzzle

but
when the puzzle is rated "easy"
you should really assume it is easy

-- and in that case,
adding "pencilmarks" only makes it tougher

Pat

Posts: 3674
Joined: 18 July 2005