HoDoKu Solving Technique Index: Example for "Alternate Inference Chain Type 1 (cannibalistic)"

Solving Technique Example

Original sudoku:

9.6.82..........5......31...4......1.....6.......9..4.3..71.4...7..45.86..4...2..

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

:0708:6:9.6.82+7+3+4.....+4.5.+4....31...4...+7+9.1.+9+1+4.6.+7.....9+1.4.3+6+271+84+9+5+17+9+245+386..4..+92+1+7::627 634 635:

The following representation can be pasted in most Sudoku programs:

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

| 9      15    6    | 15   8    2 | 7    3   4   |

| 278    1238  378  | 169  67   4 | 68   5   289 |

| 4      258   578  | 569  567  3 | 1    26  289 |

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

| 2568   4     358  | 358  235  7 | 9    26  1   |

| 258    9     1    | 4    235  6 | 58   7   238 |

| 25678  2358  3578 | 358  9    1 | 568  4   238 |

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

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

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

| 58     58    4    | 36   36   9 | 2    1   7   |

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

Representation of the step:

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

|  9      15    6    | 15     8     2 |  7     3   4   |

| *278    1238  378  | 169   *67    4 | *-68   5   289 |

|  4      258   578  | 5-69   5-67  3 |  1    *26  289 |

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

|  2568   4     358  | 358    235   7 |  9     26  1   |

|  258    9     1    | 4      235   6 |  58    7   238 |

| *25678  2358  3578 | 358    9     1 | *568   4   238 |

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

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

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

|  58     58    4    | 36     36    9 |  2     1   7   |

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



AIC 6- r2c5 -7- r2c1 =7= r6c1 =6= r6c7 -6- r2c7 =6= r3c8 -6 => r2c7,r3c45<>6






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