The published puzzle, an intermediate level is as follows:
- Code: Select all
*-----------------------------------------------------------*
| . 9 | . 7 . | . . . |
| . . 6 | 2 . 3 | 7 . . |
| . 4 . | . 9 . | . 2 . |
|-------------------+-------------------+-------------------|
| . 5 . | . . 1 | . 4 . |
| . . 4 | . . . | 2 . 7 |
| . 9 . | . . . | . 9 . |
|-------------------+-------------------+-------------------|
| . 9 . | . . . | . 8 2 |
| . . 1 | 3 . 6 | 9 7 . |
| . . . | . . . | 1 . . |
*-----------------------------------------------------------*
I have solved it to this point:
- Code: Select all
*-----------------------------------------------------------*
| 2 3 9 | . 7 5 | . . . |
| 8 1 6 | 2 4 3 | 7 5 9 |
| 7 4 5 | . 9 8 | . 2 . |
|-------------------+-------------------+-------------------|
| 9 5 2 | 7 . 1 | . 4 . |
| . 6 4 | 8 5 9 | 2 . 7 |
| . 9 7 | 4 . 2 | 5 9 . |
|-------------------+-------------------+-------------------|
| . 9 3 | 5 1 7 | . 8 2 |
| . 2 1 | 3 8 6 | 9 7 . |
| . 7 8 | 9 2 4 | 1 . . |
*-----------------------------------------------------------*
With pencil marks:
- Code: Select all
*-----------------------------------------------------------*
| 2 3 9 | 16 7 5 | 48 16 48 |
| 8 1 6 | 2 4 3 | 7 5 9 |
| 7 4 5 | 16 9 8 | 36 2 136 |
|-------------------+-------------------+-------------------|
| 9 5 2 | 7 36 1 | 368 4 368 |
| 13 6 4 | 8 5 9 | 2 13 7 |
| 13 9 7 | 4 36 2 | 5 9 136 |
|-------------------+-------------------+-------------------|
| 46 9 3 | 5 1 7 | 46 8 2 |
| 45 2 1 | 3 8 6 | 9 7 45 |
| 56 7 8 | 9 2 4 | 1 36 356 |
*-----------------------------------------------------------*
But, now I’m at a complete loss. I think the solution is either in column 9, but I can’t see what to do.
Thanks for any help.