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

Solving Technique Example

Original sudoku:

..1..8.2.8...9.64.5.2.....7.8..2.........9..3...41..............6.9..51...714..6.

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

:1101:2459:+6+41..8+32+98+7+3+29+164+55+92..+4+1+87.8..2.+4.+1.....9+2.3...41.+8.+6......+7+3..6.9..51...714.+96+8::271 471 543 553 562 943:

The following representation can be pasted in most Sudoku programs:

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

| 6     4    1    | 57    57    8    | 3  2    9  |

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

| 5     9    2    | 36    36    4    | 1  8    7  |

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

| 379   8    569  | 3567  2     3567 | 4  579  1  |

| 147   15   456  | 5678  5678  9    | 2  57   3  |

| 2379  235  59   | 4     1     357  | 8  579  6  |

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

| 1249  125  4589 | 568   568   256  | 7  3    24 |

| 234   6    48   | 9     378   237  | 5  1    24 |

| 23    235  7    | 1     4     235  | 9  6    8  |

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

Representation of the step:

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

|  6        4      1    | 57    57    8    | 3  2    9  |

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

|  5        9      2    | 36    36    4    | 1  8    7  |

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

| A379      8     -56-9 | 3567  2     3567 | 4  579  1  |

| A147     B15     4-56 | 5678  5678  9    | 2  57   3  |

| A2379     23-5  B59   | 4     1     357  | 8  579  6  |

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

|  1-2-49   125    4589 | 568   568   256  | 7  3    24 |

| C234      6      48   | 9     378   237  | 5  1    24 |

| C23       235    7    | 1     4     235  | 9  6    8  |

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



Sue de Coq: r456c1 - {123479} (r89c1 - {234}, r5c2,r6c3 - {159}) => r7c1<>2, r7c1<>4, r45c3,r6c2<>5, r4c3<>9