The New Sudoku Players' Forum

[smolick]

Hi,
Im stuck. What should I do and how should I think in this situation?

Thanks,
Viktor

[SpAce]

Im stuck. What should I do and how should I think in this situation?

You should first fix a mistake. It appears that you've (probably accidentally) eliminated 1 from r6c5. Place it there, and after that you need couple of basic moves in the same neighborhood before it's all singles.

[smolick]

Thanks! But how do I continue after adding that number?

[SpAce]

Thanks! But how do I continue after adding that number?

Try this sequence of basic moves:

Code: Select all

.--------------.------------------.-----------------.
| 9   7    5   | 1     36     36  | 24     28  248  |
| 3   6    4   | 2     7      8   | 1      5   9    |
| 8   2    1   | 4     5      9   | 6      3   7    |
:--------------+------------------+-----------------:
| 4   1    6   | 589   239    35  | 7      28  258  |
| 25  358  239 | 6     24-39  7   | 2459   1   2458 |
| 7   58   29  | 58-9  1      4-5 | 249-5  6   3    |
:--------------+------------------+-----------------:
| 1   59   7   | 59    8      2   | 3      4   6    |
| 6   49   8   | 3     49     1   | 25     7   25   |
| 25  345  23  | 7     46     456 | 8      9   1    |
'--------------'------------------'-----------------'

Code: Select all

1. Pointing:   (3)b4\r5  => -3 r5c5       (or Claiming:    (3)r4\b5   => -3 r5c5)
2. Claiming:   (9)r4\b5  => -9 r5c5,r6c4  (or X-Wing:      (9)c37\r56 => -9 r5c5,r6c4)
3. Naked Pair: (58)r6c24 => -5 r6c67      (or Hidden Pair: (29)r6c37  => -45 r6c7)
4. stte (singles to the end)