HoDoKu Solving Technique Index: Example for "Simple Colors"

Solving Technique Example

Original sudoku:

.............3.6.52..1.5.4.....9.3...6.7..5...1...4..279.6.....5.....9811.2......

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

:0500:8:+6+5+9...+1+3...+1.3.6+252.+31+65.4+9.+2..9+63+1.+36.7..5+9.+91.+3.4.+6279.6..+2+5+35.+6...9811.2...+4+7+6:814 815 424 826 443 843 849 855 856 863 875 285 896:819 821 824 832 844 853 867 876 892 895:

The following representation can be pasted in most Sudoku programs:

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

| 6   5    9  | 24   247  278 | 1   3  78 |

| 48  478  1  | 89   3    79  | 6   2  5  |

| 2   78   3  | 1    6    5   | 78  4  9  |

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

| 48  2    57 | 58   9    6   | 3   1  47 |

| 3   6    48 | 7    12   12  | 5   9  48 |

| 9   1    57 | 3    58   4   | 78  6  2  |

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

| 7   9    48 | 6    14   18  | 2   5  3  |

| 5   34   6  | 24   47   237 | 9   8  1  |

| 1   38   2  | 589  58   39  | 4   7  6  |

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

Representation of the step:

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

| 6    5    9   |  24   247  278 | 1    3  7-8 |

| 4-8  478  1   | -89   3    79  | 6    2  5   |

| 2    7-8  3   |  1    6    5   | 78   4  9   |

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

| 48   2    57  |  5-8  9    6   | 3    1  47  |

| 3    6    4-8 |  7    12   12  | 5    9  48  |

| 9    1    57  |  3    58   4   | 7-8  6  2   |

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

| 7    9    48  |  6    14   1-8 | 2    5  3   |

| 5    34   6   |  24   47   237 | 9    8  1   |

| 1    3-8  2   |  589  5-8  39  | 4    7  6   |

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



Simple Colors: 8 (r1c6,r3c7,r4c1,r5c9,r6c5,r7c3) / (r1c9,r2c1,r2c4,r3c2,r4c4,r5c3,r6c7,r7c6,r9c2,r9c5) => r1c9,r2c14,r39c2,r4c4,r5c3,r6c7,r7c6,r9c5<>8