HoDoKu Solving Technique Index: Example for "Multi Colors"

Solving Technique Example

Original sudoku:

.17....28.8..4...........7...4.9...696...7..15....2..............891.54...58..31.

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

:0501:3:.17....28+28.+74...+5.+5...+8.7.+8.4.9...696...7..15.+1..2...+1..........891.54...58..31.:611 323 631 333 334 335 437 939 342 769 969 272 372 772 673 973 474 674 675 676 277 777 977 978 381 782 491 292 792:362 373 386:

The following representation can be pasted in most Sudoku programs:

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

| 34  1   7  | 356  356   3569 | 469   2    8   |

| 2   8   69 | 7    4     1369 | 169   369  5   |

| 34  5   69 | 126  26    8    | 169   7    34  |

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

| 8   27  4  | 135  9     135  | 27    35   6   |

| 9   6   23 | 345  358   7    | 248   358  1   |

| 5   37  1  | 346  368   2    | 4789  389  34  |

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

| 1   49  23 | 235  2357  345  | 68    68   279 |

| 67  23  8  | 9    1     36   | 5     4    27  |

| 67  49  5  | 8    267   46   | 3     1    279 |

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

Representation of the step:

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

| 34   1   7   | 356  356    3569 | 469   2    8   |

| 2    8   69  | 7    4      1369 | 169   369  5   |

| 34   5   69  | 126  26     8    | 169   7    34  |

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

| 8    27  4   | 135  9      135  | 27    35   6   |

| 9    6   23  | 345  358    7    | 248   358  1   |

| 5   -37  1   | 346  368    2    | 4789  389  34  |

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

| 1    49  2-3 | 235  2357   345  | 68    68   279 |

| 67   23  8   | 9    1     -36   | 5     4    27  |

| 67   49  5   | 8    267    46   | 3     1    279 |

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



Multi Colors: 3 (r5c3,r8c2) / (r6c2,r7c3,r8c6), (r1c1,r2c6,r3c9) / (r2c8,r3c1,r6c9) => r6c2,r7c3,r8c6<>3