HoDoKu Solving Technique Index: Example for "Finned Mutant X-Wing"

Solving Technique Example

Original sudoku:

.617....5842.95....5..6.4.........3..25........41...26..........8.....672.....349

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

:0360:9:+3617..+2+95842+395+6+7+1.5.+26+14+8+3+1.+8+5+2+6.3+4+625....+1+8.+341..+526+4..+6+1.+8+5+2+58...+2+1672+1+6+8+5+7349::976:r6c2 c6b4 fr7c2

The following representation can be pasted in most Sudoku programs:

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

| 3   6   1   | 7   48   48  | 2   9  5 |

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

| 79  5   79  | 2   6    1   | 4   8  3 |

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

| 1   79  8   | 5   2    6   | 79  3  4 |

| 6   2   5   | 49  347  349 | 79  1  8 |

| 79  3   4   | 1   78   89  | 5   2  6 |

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

| 4   79  379 | 6   1    39  | 8   5  2 |

| 5   8   39  | 49  34   2   | 1   6  7 |

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

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

Representation of the step:

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

|  3    6   1   | 7   48    48  | 2   9  5 |

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

|  79   5   79  | 2   6     1   | 4   8  3 |

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

|  1   *79  8   | 5   2     6   | 79  3  4 |

|  6    2   5   | 49  347   349 | 79  1  8 |

| *79   3   4   | 1   78   *89  | 5   2  6 |

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

|  4   #79  379 | 6   1     3-9 | 8   5  2 |

|  5    8   39  | 49  34    2   | 1   6  7 |

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

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



Finned Mutant X-Wing: 9 r6c2 c6b4 fr7c2 => r7c6<>9