HoDoKu Solving Technique Index: Example for "Hidden Triple"

Solving Technique Example

Original sudoku:

2.....4..5.......6..1.34.8....5...4...........6.79.....9.2..6....3..9..1....8..37

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

:0211:16:2+8....4+7+35+3+4+8+2+7+1+96.+71.34.8.+3..5...4....+3+4..+6.+46.79.+3+1..9.2.+36+5+4..3..9+8+21....8.+937::192 693:

The following representation can be pasted in most Sudoku programs:

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

| 2     8     69    | 169  156  156  | 4    7  3    |

| 5     3     4     | 8    2    7    | 1    9  6    |

| 69    7     1     | 69   3    4    | 25   8  25   |

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

| 3     12    2789  | 5    16   1268 | 27   4  289  |

| 1789  125   25789 | 3    4    128  | 257  6  2589 |

| 4     6     258   | 7    9    28   | 3    1  258  |

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

| 178   9     78    | 2    17   3    | 6    5  4    |

| 67    45    3     | 46   567  9    | 8    2  1    |

| 16    1245  256   | 146  8    156  | 9    3  7    |

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

Representation of the step:

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

| 2      8       69    | 169  156  156  | 4    7  3    |

| 5      3       4     | 8    2    7    | 1    9  6    |

| 69     7       1     | 69   3    4    | 25   8  25   |

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

| 3      12      2789  | 5    16   1268 | 27   4  289  |

| 1789   125     25789 | 3    4    128  | 257  6  2589 |

| 4      6       258   | 7    9    28   | 3    1  258  |

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

| 178    9       78    | 2    17   3    | 6    5  4    |

| 67    *45      3     | 46   567  9    | 8    2  1    |

| 16    *-1245  *25-6  | 146  8    156  | 9    3  7    |

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



Hidden Triple: 2,4,5 in r89c2,r9c3 => r9c2<>1, r9c3<>6