The New Sudoku Players' Forum

[FEARDIZ]

can someone give me some help with this one, if you could tell me the technique, I'd like to learn it.

thanks

817|534|926
26.|1.7|...
34.|2.6|.71
___________
62.|475|.93
49.|3.2|..7
753|9.8|..2
__________
982|6..|7..
.76|8..|...
.34|72.|.6.




[/img][/code]

[Sped]

Code: Select all

 
 *-----------*
 |817|534|926|
 |26.|1.7|...|
 |34.|2.6|.71|
 |---+---+---|
 |62.|475|.93|
 |49.|3.2|..7|
 |753|9.8|..2|
 |---+---+---|
 |982|6..|7..|
 |.76|8..|...|
 |.34|72.|.6.|
 *-----------*


Think about where 2s can go in box 9.

Then see where 3s can go in column 7.

[FEARDIZ]

thanks, found those, and I'm still stuck


817|534|926
26.|1.7|3..
34.|2.6|.71
___________
62.|475|.93
49.|3.2|..7
753|9.8|..2
__________
982|6..|7..
.76|8..|2..
.34|72.|.6.

here is the mess I have.. sorry if the format is not good, but I tried

8 1 7 | 5 3 4 | 9 2 6
2 6 59 | 1 89 7 | 3 458 458
3 4 59 | 2 89 6 | 58 7 1
-------------------------------------
6 2 18 | 4 7 5 | 18 9 3
4 9 18 | 3 16 2 | 1568 158 7
7 5 3 | 9 16 8 | 146 14 2
----------------------------------------
9 8 2 | 6 45 13 | 7 13 45
15 7 6 | 8 45 139 | 2 1345 459
15 3 4 | 7 2 19 | 158 6 589

[Sped]

Code: Select all

 *-----------------------------------------------------------*
 | 8     1     7     | 5     3     4     | 9     2     6     |
 | 2     6     59    | 1     89    7     | 3     458   458   |
 | 3     4     59    | 2     89    6     | 58    7     1     |
 |-------------------+-------------------+-------------------|
 | 6     2     18    | 4     7     5     | 18    9     3     |
 | 4     9     18    | 3     16    2     | 1568  158   7     |
 | 7     5     3     | 9     16    8     | 146   14    2     |
 |-------------------+-------------------+-------------------|
 | 9     8     2     | 6     45    13    | 7     13    45    |
 | 15    7     6     | 8     45    139   | 2     1345  459   |
 | 15    3     4     | 7     2     19    | 158   6     589   |
 *-----------------------------------------------------------*


If you look in column 7, there is just one place a 4 can go, Then, in the same column, there is just one place a 6 can go. After that there is just one six left to be placed.

Next look at what it takes to complete box 5 and row 6.

It's just singles and hidden singles to the end.

It gets easier with practice.

If you want to solve these on a computer instead of pencil and paper, check this program out:

http://angusj.com/sudoku/

It's a great teacher.

[FEARDIZ]

yep sorry I should be able to see that, you go cross eyed looking at these things
these are labled Evil on http://www.websudoku.com
puzzle Evil Puzzle 3,565,148,538

Thanks for the good and very fast responce, I'll check out the site you posted

[TKiel]

I just did a couple of the evil puzzles (highest level) from that website and neither needed anything more complex than naked triples, which probably means it's marketed at the pencil and paper crowd.

I use the Simple Sudoku program from the site listed by Sped and I also think it is great. The only problem is it makes puzzles needing only naked triples too easy.

Tracy