HoDoKu Solving Technique Index: Example for "Grouped Alternate Inference Chain Type 1 with ALS node"

Solving Technique Example

Original sudoku:

....6..3..36.8..94.2..496.....2..5..95.7...8......83.......1....65........4...7.8

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

:0711:4:....6.+83..36.8..94.2.+3496.....2..5..95.7...8.....+583.......1....65........4..+57.8:164 664 979 286 786 989:446 456 474 484:

The following representation can be pasted in most Sudoku programs:

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

| 1457    1479  179   | 15    6     27  | 8     3      1257  |

| 157     3     6     | 15    8     27  | 12    9      4     |

| 1578    2     178   | 3     4     9   | 6     157    157   |

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

| 134678  1478  1378  | 2     139   346 | 5     1467   1679  |

| 9       5     123   | 7     13    346 | 124   8      126   |

| 12467   147   127   | 49    5     8   | 3     12467  12679 |

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

| 2378    789   23789 | 4689  2379  1   | 249   2456   2356  |

| 12378   6     5     | 489   2379  34  | 1249  124    123   |

| 123     19    4     | 69    239   5   | 7     126    8     |

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

Representation of the step:

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

| 1457    1479  179   |  15    6      27   |  8      3       1257  |

| 157     3     6     |  15    8      27   |  12     9       4     |

| 1578    2     178   |  3     4      9    |  6      157     157   |

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

| 134678  1478  1378  |  2     139    3-46 |  5      1467    1679  |

| 9       5     123   |  7     13     3-46 |  124    8       126   |

| 12467   147   127   | *49    5      8    |  3      12467   12679 |

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

| 2378    789   23789 | -4689  2379   1    | A249    2456    2356  |

| 12378   6     5     | -489   2379  *34   | A1249  A124    A123   |

| 123     19    4     | *69    239    5    |  7     A126     8     |

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



Grouped AIC 4- r8c6 -3- ALS:r78c7,r8c89,r9c8 -6- r9c4 -9- r6c4 -4 => r45c6,r78c4<>4






Copyright © 2008-12 by Bernhard Hobiger
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