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

Solving Technique Example

Original sudoku:

..83.7..926....3.........4.3...521.87.4..8..5.5........8...6..7.....52....1......

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

:1101:459:+1+483+27..926+7+5+9+43+8+1.+3.+8+6+1+74+23+9+6+4521+787+14+6+38+9+25+85+2..+9....8.+2.6..7.+7..+852...+21..+3+8..::475 578 981 991:

The following representation can be pasted in most Sudoku programs:

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

| 1     4  8   | 3   2   7 | 56  56    9   |

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

| 59    3  59  | 8   6   1 | 7   4     2   |

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

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

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

| 8     5  2   | 17  17  9 | 46  36    346 |

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

| 459   8  359 | 2   14  6 | 45  1359  7   |

| 469   7  39  | 19  8   5 | 2   1369  346 |

| 4569  2  1   | 79  47  3 | 8   569   46  |

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

Representation of the step:

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

|  1      4   8   | 3   2    7 |  56  56     9   |

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

|  59     3   59  | 8   6    1 |  7   4      2   |

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

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

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

|  8      5   2   | 17  17   9 |  46  36     346 |

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

| A459    8  A359 | 2   1-4  6 | C45  13-59  7   |

|  46-9   7  B39  | 19  8    5 |  2   1369   346 |

|  456-9  2   1   | 79  47   3 |  8   569    46  |

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



Sue de Coq: r7c13 - {3459} (r7c7 - {45}, r8c3 - {39}) => r7c5<>4, r7c8<>5, r89c1<>9