HoDoKu Solving Technique Index: Example for "Naked Triple"

Solving Technique Example

Original sudoku:

39.............65...7...349..938...6....54...853.........8..1....294..6.4.......7

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

:0201:126:39....+7........65.+5.7...349.+4938.+5.6+6.+1.54+9+8+3853...+4..+9..8..1+3+4..294.+86+54.....+2+97::114 116 124 125 126 136 214 216 224 225 226 236 614 616 636:

The following representation can be pasted in most Sudoku programs:

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

| 3   9     468 | 12456  126    12568  | 7  12   128 |

| 12  128   48  | 1247   12379  123789 | 6  5    128 |

| 5   1268  7   | 126    126    1268   | 3  4    9   |

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

| 27  4     9   | 3      8      127    | 5  127  6   |

| 6   27    1   | 27     5      4      | 9  8    3   |

| 8   5     3   | 1267   12679  12679  | 4  127  12  |

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

| 9   67    56  | 8      267    2567   | 1  3    4   |

| 17  137   2   | 9      4      137    | 8  6    5   |

| 4   1368  568 | 156    136    1356   | 2  9    7   |

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

Representation of the step:

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

| 3   9     468 | -1-245-6  *126     -1-25-68 | 7  12   128 |

| 12  128   48  | -1-247    -1-2379  -1-23789 | 6  5    128 |

| 5   1268  7   | *126      *126     -1-2-68  | 3  4    9   |

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

| 27  4     9   |  3         8        127     | 5  127  6   |

| 6   27    1   |  27        5        4       | 9  8    3   |

| 8   5     3   |  1267      12679    12679   | 4  127  12  |

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

| 9   67    56  |  8         267      2567    | 1  3    4   |

| 17  137   2   |  9         4        137     | 8  6    5   |

| 4   1368  568 |  156       136      1356    | 2  9    7   |

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



Naked Triple: 1,2,6 in r13c5,r3c4 => r1c46,r2c456,r3c6<>1, r1c46,r2c456,r3c6<>2, r1c46,r3c6<>6