HoDoKu Solving Technique Index: Example for "Jellyfish"

Solving Technique Example

Original sudoku:

2....358.....2...1...4.56.....9.4.68..5.1.9..61.8.2.....15.8...3...4.....263....4

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

:0302:7:2.+4+1.358.....2.+3+41+1.+34+856..+7+3+29+54+168..5.1.9..61+98+32+4....15.8+2..3..+24.....263....4:758 759 778 779 782 882 786 788 789 798:722 795:r1367 c2589

The following representation can be pasted in most Sudoku programs:

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

| 2    679    4  | 1   679  3   | 5   8    79  |

| 589  56789  78 | 67  2    679 | 3   4    1   |

| 1    79     3  | 4   8    5   | 6   279  279 |

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

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

| 48   48     5  | 67  1    67  | 9   23   23  |

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

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

| 49   479    1  | 5   679  8   | 2   39   369 |

| 3    59     78 | 2   4    169 | 78  159  569 |

| 589  2      6  | 3   79   179 | 78  159  4   |

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

Representation of the step:

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

| 2    *679     4  | 1   *679  3   | 5    8    *79  |

| 589   56-789  78 | 67   2    679 | 3    4     1   |

| 1    *79      3  | 4    8    5   | 6   *279  *279 |

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

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

| 48    48      5  | 67   1    67  | 9    23    23  |

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

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

| 49   *479     1  | 5   *679  8   | 2    39    369 |

| 3     59      78 | 2    4    169 | 78   159   569 |

| 589   2       6  | 3   -79   179 | 78   159   4   |

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



Jellyfish: 7 r1367 c2589 => r2c2,r9c5<>7