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

478 9 34 2 1 347 6 378 5
2 3567 356 3567 9 8 4 37 1
1 345678 3456 34567 3567 34567 2 378 9
3 24567 2456 9 567 1 8 246 26
478 24678 1 467 678 467 5 9 3
48 4568 9 3456 3568 2 1 46 7
9 1 8 3567 23567 3567 37 256 4
6 234 234 1 2357 3579 379 25 8
5 23 7 8 4 369 39 1 26

stuck...
simleung

Posts: 15
Joined: 05 November 2005

how do you post in order to preserve the spacing?
simleung

Posts: 15
Joined: 05 November 2005

simleung wrote:how do you post in order to preserve the spacing?

hi simleung,

you have to post your pencil markes between [ CODE ] & [ /CODE ]

here it is:
Code: Select all
`*--------------------------------------------------------------------------*| 478     9       34     | 2       1       347    | 6       378     5      || 2       3567    356    | 3567    9       8      | 4       37      1      || 1       345678  3456   | 34567   3567    34567  | 2       378     9      ||------------------------+------------------------+------------------------|| 3       24567   2456   | 9       567     1      | 8       246     26     || 478    *24678   1      | 467     678     467    | 5       9       3      || 48      4568    9      | 3456    3568    2      | 1       46      7      ||------------------------+------------------------+------------------------|| 9       1       8      | 3567    23567   3567   | 37      256     4      || 6       234     234    | 1       2357    3579   | 379     25      8      || 5       23      7      | 8       4       369    | 39      1       26     |*--------------------------------------------------------------------------*r5c2 value MUST be 2 (Hidden Single in Row 5)`

Row five has the candidate 2 only in one cell. That cell according to the sudoku rules should have that candidate only in the solution. That is a hidden single.

Tarek

tarek

Posts: 2650
Joined: 05 January 2006

The puzzle solves completely with only naked and hidden singles.

Tracy
TKiel

Posts: 209
Joined: 05 January 2006

thank you for 1. and thank you for 2. i hate it when I miss things like that....
simleung

Posts: 15
Joined: 05 November 2005