## Need help with a (simple) puzzle

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

### Need help with a (simple) puzzle

I am at an impass with a fairly easy puzzle. Not sure why, but was hoping someone would have a suggestion on the next step. Thanks VERY much.

4--5,6--8--1,5,6,7--3--1,2,5,6,7--1,2,5,7--9
1,2,5,7--1,2--7--1,2,6 9--1,2,5,6--8--1,2,5--4--3
1,2,9--5,9--3--1,5,7--4--1,2,5,7--6--8--1,2,5,7
7--1,2--5--3--1,6--9--4--2,6-8
3--8--9--2--1,5,6,7--4--1,5,7--5,6,7--1,5,6
6--1,2--4--8--1,5,7--1,5,7--9--3-- 1,2,5,7
1,2,5--3--7--1,4,5,6--9--1,2,5,6--8--2,5,6--2,4,5,6
8--4--2,6--5,6,7--2,5,6,7--3--2,5,7--1--9
1,2,5,9--6,9--1,2,6--1,4,5,6,9--8--1,2,5,6,7--3--2,5,6,7--2,4,5,6,7

(sorry ... but I'm not sure of the best way to represent the grid)
5krunner

Posts: 22
Joined: 19 December 2005

Sorry - it's difficult to work out what numbers are candidates and what are completed cells from this, but on the assumption that commas are separating candidates and double dashes are separating the cells, you seem to have two 7s in column 3.
CathyW

Posts: 316
Joined: 20 June 2005

### re: Need help with a simple puzzle

5krunner wrote:I am at an impass with a fairly easy puzzle:
Code: Select all
`4--5,6--8--1,5,6,7--3--1,2,5,6,7--1,2,5,7--91,2,5,7--1,2--7--1,2,6   9--1,2,5,6--8--1,2,5--4--31,2,9--5,9--3--1,5,7--4--1,2,5,7--6--8--1,2,5,77--1,2--5--3--1,6--9--4--2,6-83--8--9--2--1,5,6,7--4--1,5,7--5,6,7--1,5,66--1,2--4--8--1,5,7--1,5,7--9--3--   1,2,5,71,2,5--3--7--1,4,5,6--9--1,2,5,6--8--2,5,6--2,4,5,68--4--2,6--5,6,7--2,5,6,7--3--2,5,7--1--91,2,5,9--6,9--1,2,6--1,4,5,6,9--8--1,2,5,6,7--3--2,5,6,7--2,4,5,6,7`

(sorry ... but I'm not sure of the best way to represent the grid)

i'd like you to please start by
listing only the known cells
(with a dot for an empty cell);

and do use [code] ... [/code]

- then it would be obvious that
you only showed us 8 cells in r1

and by the way,
you also have an error in r2

thanks!
~ Pat

Pat

Posts: 3653
Joined: 18 July 2005

Here's the "known" cell format:

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

Posts: 22
Joined: 19 December 2005

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

the 6 for box 5
is in c5

so,
the 6 for r2
can't be in c5

~ Pat

Pat

Posts: 3653
Joined: 18 July 2005

Wow. That all it took since that uncovers a naked pair in r2! Thank u!
5krunner

Posts: 22
Joined: 19 December 2005

### re(3): Need help with a simple puzzle

5krunner wrote:Wow. That all it took since that uncovers a naked pair in r2! Thank u!
actually no duo is needed
(it's a Medium puzzle)

we've just placed the r2 6 at c3,
now the c2 6 is at r9---

~ Pat

Pat

Posts: 3653
Joined: 18 July 2005