The New Sudoku Players' Forum

[rocafella]

24 1245 12 | 8 6 135 | 134 9 7
8 157 679 | 1579 379 13579 | 4 1356 2
3 157 1679 | 4 2 13579 | 13 1356 8
------------------+--------------------+-------------------
24 9 3 | 257 78 2578 | 6 457 1
1 248 28 | 3 78 6 | 57 457 9
7 6 5 | 19 4 19 | 8 2 3
------------------+--------------------+-------------------
6 1278 1278 | 279 5 23789 | 12379 1378 4
5 3 278 | 6 378 2378 | 1237 1378 5
5 3 278 | 279 1 4 | 279 78 6

Thanks

[TKiel]

Rocafella,

You've placed two 5's in column one and two 3's in column 2. It's also handy if you can post the initial clue grid when asking for help.

Tracy

[rocafella]

Sorry. The ones in bold are the initial clue.

24 1245 12 | 8 6 135 | 134 9 7
8 157 679 | 1579 379 13579 | 4 1356 2
3 157 1679 | 4 2 13579 | 13 1356 8
------------------+--------------------+-------------------
24 9 3 | 257 78 2578 | 6 457 1
1 248 28 | 3 78 6 | 57 457 9
7 6 5 | 19 4 19 | 8 2 3
------------------+--------------------+-------------------
6 1278 1278 | 279 5 23789 | 12379 1378 4
9 1278 4 | 6 378 2378 | 1237 1378 5
5 3 278 | 279 1 4 | 279 78 6

[Sped]

Code: Select all

*--------------------------------------------------------------------*
 | 24     1245   12     | 8      6      135    | 13     9      7      |
 | 8      157    679    | 1579   379    13579  | 4      1356   2      |
 | 3      157    1679   | 4      2      1579   | 1      156    8      |
 |----------------------+----------------------+----------------------|
 | 24     9      3      | 257    78     2578   | 6      457    1      |
 | 1      248    28     | 3      78     6      | 57     457    9      |
 | 7      6      5      | 19     4      19     | 8      2      3      |
 |----------------------+----------------------+----------------------|
 | 6      1278   1278   | 279    5      23789  | 12379  1378   4      |
 | 9      1278   4      | 6      378    2378   | 1237   1378   5      |
 | 5      3      278    | 279    1      4      | 279    78     6      |
 *--------------------------------------------------------------------*


It's all singles. Start with r3c7. You show the candidates as 13, but there's already a 3 in row 3, so a couple of of threes in that row can be eliminated.

[ronk]

Sorry. The [ed: clues] in bold are the initial clues.

A separate grid with just the initial clues would be even more helpful. Recommend you use dots ('.') or zeroes ('0') for empty cells. A single line of 81 characters is acceptable too.

Your puzzle can be solved with only singles (naked and hidden) and naked pairs. For your next move, look for the only place a 9 can be in col 5.

[rocafella]

Thanks for the hint but I'm still stuck. I'm still kinda new at these but I haven't had this much trouble yet. Please help with the next step.

with Pencil marks

Code: Select all

*--------------------------------------------------------------------*
 | 24     1245   12     | 8      6      135    | 35     9      7      |
 | 8      157    6      | 157    9      1357   | 4      35     2      |
 | 3      57     9      | 4      2      57     | 1      6      8      |
 |----------------------+----------------------+----------------------|
 | 24     9      3      | 257    78     2578   | 6      457    1      |
 | 1      248    28     | 3      78     6      | 57     457    9      |
 | 7      6      5      | 19     4      19     | 8      2      3      |
 |----------------------+----------------------+----------------------|
 | 6      1278   1278   | 279    5      23789  | 2379   1378   4      |
 | 9      1278   4      | 6      378    2378   | 237    1378   5      |
 | 5      3      278    | 279    1      4      | 279    78     6      |
 *--------------------------------------------------------------------*

From the start

Code: Select all

*------------------------*
 | . . . | 8 6 . | . 9 . |
 | 8 . . | . . . | 4 . 2 |
 | . . . | . . . | . . 8 |
 |-----------------------|
 | . 9 .3| . . . | 6 . 1 |
 | 1 . . | 3 . 6 | . . 9 |
 | 7 . 5 | . . . | 8 2 . |
 |-----------------------|
 | 6 . . | . 5 . | . . . |
 | 9 . 4 | . . . | . . 5 |
 | . 3 . | . 1 4 | . . . |
 *-----------------------*

[emm]

Naked pair = 78 in box 5.

Since these two numbers must go in these two cells, remove them from the other cells in that box and in that column.

This will give you another naked pair in row 4.