HoDoKu Solving Technique Index: Example for "Hidden Single"

Solving Technique Example

Original sudoku:

..8..7....16.83..........511.729.................463.729..........86.14....3..7..

Use the following line if you want to load the sudoku in HoDoKu:

:0002::.+28..7....16.83.+7.....+2.+8511+3729.......+7+3........463.729..+7.......86.14....3..7..:::

The following representation can be pasted in most Sudoku programs:

.-------------------.------------------.----------------------.

| 3459   2     8    | 14569  15  7     | 469    369    3469   |

| 459    1     6    | 459    8   3     | 249    7      249    |

| 3479   47    349  | 469    2   49    | 8      5      1      |

:-------------------+------------------+----------------------:

| 1      3     7    | 2      9   58    | 456    68     4568   |

| 45689  4568  2459 | 7      3   158   | 24569  12689  245689 |

| 589    58    259  | 15     4   6     | 3      1289   7      |

:-------------------+------------------+----------------------:

| 2      9     1345 | 145    7   145   | 56     368    3568   |

| 357    57    35   | 8      6   259   | 1      4      2359   |

| 4568   4568  145  | 3      15  12459 | 7      2689   25689  |

'-------------------'------------------'----------------------'

Representation of the step:

.-------------------.-------------------.----------------------.

| 3459   2     8    |  14569  15  7     | 469    369    3469   |

| 459    1     6    |  459    8   3     | 249    7      249    |

| 3479   47    349  | *469    2   49    | 8      5      1      |

:-------------------+-------------------+----------------------:

| 1      3     7    |  2      9   58    | 456    68     4568   |

| 45689  4568  2459 |  7      3   158   | 24569  12689  245689 |

| 589    58    259  |  15     4   6     | 3      1289   7      |

:-------------------+-------------------+----------------------:

| 2      9     1345 |  145    7   145   | 56     368    3568   |

| 357    57    35   |  8      6   259   | 1      4      2359   |

| 4568   4568  145  |  3      15  12459 | 7      2689   25689  |

'-------------------'-------------------'----------------------'



Hidden Single: r3c4=6






Copyright © 2008-12 by Bernhard Hobiger
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