HoDoKu Solving Technique Index: Example for "Hidden Pair"

Solving Technique Example

Original sudoku:

....32..............76..914.96...8....5..8....3..4...5.5.2.....7.....56.9.4.1....

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

:0210:6:.+4+9+132....+8+1+4+7+9...+3+276+8+5914.96.+5+18...+75.+28....3+8.4+6..5+85+32+6+7...7+1+2+8+9+456+39+64+51+3...::659:

The following representation can be pasted in most Sudoku programs:

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

| 56  4  9 | 1   3  2 | 67    578   678 |

| 56  8  1 | 4   7  9 | 236   235   26  |

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

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

| 24  9  6 | 37  5  1 | 8     2347  27  |

| 14  7  5 | 39  2  8 | 1346  349   169 |

| 12  3  8 | 79  4  6 | 127   279   5   |

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

| 8   5  3 | 2   6  7 | 14    49    19  |

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

| 9   6  4 | 5   1  3 | 27    278   278 |

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

Representation of the step:

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

| 56  4  9 | 1   3  2 | 67    578    678  |

| 56  8  1 | 4   7  9 | 236   235    26   |

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

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

| 24  9  6 | 37  5  1 | 8     2347   27   |

| 14  7  5 | 39  2  8 | 1346  349   *1-69 |

| 12  3  8 | 79  4  6 | 127   279    5    |

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

| 8   5  3 | 2   6  7 | 14    49    *19   |

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

| 9   6  4 | 5   1  3 | 27    278    278  |

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



Hidden Pair: 1,9 in r57c9 => r5c9<>6