HoDoKu Solving Technique Index: Example for "Sue de Coq (basic variant)"

Solving Technique Example

Original sudoku:

...7284..1.2.3..7....1....968............96.1....5...87..4.......6...39.5.1......

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

:1101:2456:...7284+1.1.2+93.+87....1....968............96.1.+1..5...87..4..+1....6+5..39.5.1......::278 298 449 498 519 549 619:

The following representation can be pasted in most Sudoku programs:

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

| 39    3569   359   | 7     2     8     | 4     1     356   |

| 1     456    2     | 9     3     456   | 8     7     56    |

| 348   34567  34578 | 1     46    456   | 25    2356  9     |

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

| 6     8      34579 | 23    147   12347 | 2579  2345  23457 |

| 234   23457  3457  | 238   478   9     | 6     2345  1     |

| 2349  1      3479  | 236   5     23467 | 279   234   8     |

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

| 7     239    389   | 4     689   236   | 1     2568  256   |

| 248   24     6     | 5     178   127   | 3     9     247   |

| 5     2349   1     | 2368  6789  2367  | 27    2468  2467  |

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

Representation of the step:

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

| 39    3569   359   | 7     2     8     |  4      1       3-5-6   |

| 1     456    2     | 9     3     456   |  8      7      C56      |

| 348   34567  34578 | 1     46    456   |  25     2356    9       |

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

| 6     8      34579 | 23    147   12347 |  2579   2345    23-4-57 |

| 234   23457  3457  | 238   478   9     |  6      2345    1       |

| 2349  1      3479  | 236   5     23467 |  279    234     8       |

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

| 7     239    389   | 4     689   236   |  1     -2568   A256     |

| 248   24     6     | 5     178   127   |  3      9      A247     |

| 5     2349   1     | 2368  6789  2367  | B27    -2-468  A2467    |

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



Sue de Coq: r789c9 - {24567} (r2c9 - {56}, r9c7 - {27}) => r79c8<>2, r4c9,r9c8<>4, r14c9<>5, r1c9<>6