HoDoKu Solving Technique Index: Example for "Dual 2-String Kite"

Solving Technique Example

Original sudoku:

32..479.6..6........5.9..3.....7.......9.1..5..28..7.........7.6.3..4....5..26143

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

:0401:1:32.+5479.6..6+2+1+3.+5..+45+69+8+23.+5..+47+2.....+79.1.+25..28.+57..+2+1+4+3+5+9+67+86+73+1+84+5+9+2.5.+726143::149 168:

The following representation can be pasted in most Sudoku programs:

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

| 3    2     18  | 5  4   7 | 9    18   6   |

| 789  89    6   | 2  1   3 | 48   5    47  |

| 17   4     5   | 6  9   8 | 2    3    17  |

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

| 5    3689  189 | 4  7   2 | 38   168  19  |

| 48   368   7   | 9  36  1 | 348  2    5   |

| 149  369   2   | 8  36  5 | 7    16   149 |

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

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

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

| 89   5     89  | 7  2   6 | 1    4    3   |

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

Representation of the step:

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

|  3    2     *18  | 5  4   7 | 9    *18    6   |

|  789  89     6   | 2  1   3 | 48    5     47  |

| *17   4      5   | 6  9   8 | 2     3    *17  |

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

|  5    3689  *189 | 4  7   2 | 38    168  -19  |

|  48   368    7   | 9  36  1 | 348   2     5   |

| *149  369    2   | 8  36  5 | 7    -16    149 |

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

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

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

|  89   5      89  | 7  2   6 | 1     4     3   |

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



Dual 2-String Kite: 1 in r1c8,r6c1/in r3c9,r4c3 (connected by r1c3,r3c1) => r4c9,r6c8<>1