Can someone help me with 36197 please?

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

Can someone help me with 36197 please?

Can someone help me with this one?

_ _ _ | 3 _ 6 | 1 _ _
9 _ _ | _ _ 7 | _ _ _
1 _ _ | _ _ _ | _ 9 3
-----------------------
6 _ 7 | _ _ _ | _ 8 _
_ 3 _ | _ 4 _ | _ 1 _
_ 4 _ | _ _ _ | 3 _ 5
-----------------------
4 2 _ | _ _ _ | _ _ 7
_ _ _ | 7 _ _ | _ _ 8
_ _ 5 | 2 _ 3 | _ _ _

I've got as far as:

_ _ _ | 3 9 6 | 1 7 _
9 _ 3 | _ _ 7 | _ _ _
1 7 _ | _ _ _ | _ 9 3
-----------------------
6 _ 7 | _ 3 _ | _ 8 _
_ 3 _ | _ 4 _ | 7 1 _
_ 4 _ | _ 7 _ | 3 _ 5
-----------------------
4 2 _ | _ _ _ | _ 3 7
3 _ _ | 7 _ 4 | _ _ 8
7 _ 5 | 2 _ 3 | _ _ 1

I've have found the solution on the sudoku site

But that doesn't help me the next time around!

I wondered if someone can explain in plain terms how to do the next step?

Gibcul
gibcul

Posts: 2
Joined: 14 March 2008

Re: Can someone help me with 36197 please?

Hi gibcul and welcome to the forum.

If you haven't read the Forum's procedures for posting puzzles, including a "Pencilmark" grid, you should read up on this by clicking Here

Here is your "Pencilmark" grid at the stage you reached....
Code: Select all
` *--------------------------------------------------------------------* | 258    58     248    | 3      9      6      | 1      7      24     | | 9      568    3      | 1458   1258   7      | 24568  2456   246    | | 1      7      2468   | 458    258    258    | 24568  9      3      | |----------------------+----------------------+----------------------| | 6      159    7      | 159    3      1259   | 249    8      249    | | 258    3      289    | 5689   4      2589   | 7      1      269    | | 28     4      1289   | 1689   7      1289   | 3      26     5      | |----------------------+----------------------+----------------------| | 4      2      1689   | 15689  1568   1589   | 569    3      7      | | 3      169    169    | 7      156    4      | 2569   256    8      | | 7      689    5      | 2      68     3      | 469    46     1      | *--------------------------------------------------------------------*`

Some of the many links explaining "basic" solving techniques are listed hereunder. Before proceeding to "Advanced" solving techniques, new members are encouraged to fully acquaint themselves with the "basic" techniques including Hidden and Naked singles, Hidden and Naked pairs and triples and "Locked Candidates (1) and (2).

http://www.angusj.com/sudoku/hints.php
http://www.scanraid.com/BasicStrategies.htm

As an example of identifying the "Locked Candidates" technique of excluding candidates in some cells to eventually achieve a solution, you will see that candidate 2's in column 5 (c5) are restricted or "locked" within box2 (the top middle 3X3 grid). Therefore, any other 2's within this box outside c5 can be excluded so remove 2 from r3c6.

Again in c5, the 6's are "locked" in box8 (lower middle 3X3 grid) which enables all other 6's within box8 outside c5 to be excluded. Further "Locked" candidates exclusions exist in box8 and other boxes 6 and box1. The remainder of the puzzle solves by identifying "Hidden" or "Naked" singles.

Cec
Cec

Posts: 1039
Joined: 16 June 2005

Cec

Thanks for the info on helpful sites and the pro forma

Gibcul
gibcul

Posts: 2
Joined: 14 March 2008

Re: Can someone help me with 36197 please?

Just to satisfy my curiousity, when I replied above to gibcul I welcomed him/her to the forum because I noted that this was their first post - or so I thought? This thread now shows the "first" post was the second post? I'm sure I was drinking diet-coke last night but now I'm wondering?

Cec
Cec

Posts: 1039
Joined: 16 June 2005

Re: Can someone help me with 36197 please?

Cec wrote:This thread now shows the "first" post was the second post? I'm sure I was drinking diet-coke last night but now I'm wondering?

The "nnnn" of "posts: nnnn" is the current total, not a sequence number.
ronk
2012 Supporter

Posts: 4764
Joined: 02 November 2005
Location: Southeastern USA

Can someone help me with 36197 please?

Thanks ronk for rapid response and satisfying my curiousity.

Cec
Cec

Posts: 1039
Joined: 16 June 2005