A General Logic for Sudoku

Golden Nugget

 

 

Elimination 26

 

 

 

 

Elimination 26 to Golden Nugget using set logic. Above, two-dimensional grid diagram. Below three-dimensional view. No analysis.

 

 

 

 

Set Logic and Grid

 

E26a 70 Nodes, Rank 10:

     25 Sets = {4r2 6r3 147r4 5r6 124r7 2c389 7c57 8c6 1n246 3n12 5n34 7b1 67b5}

     35 Links = {7r1 7r2 2r3 56r5 2r6 145c2 168c4 4c6 4c7 1n1 3n46 4n78 6n3567 7n479 246b1 4689b2 4b4 2b9}

   [6R3] => (1n1*6b1) => r1c1<>6, r3c4<>6

 

  +-----------------------------------------------------------------------------+

  | 256(7)  (145)   145(27) | (68)    246(7)  (4678)  | 124     3       9       |

  | 89      89      (247)   | 3       2(47)   1       | 2(47)   6       5       |

  | (26)    (146)   3       | 29(6)   5       479     | 8       147(2)  147(2)  |

  +-----------------------------------------------------------------------------+

  | 235     35(4)   8       | 5(1)    9       35(7)   | 235(147 (1247)  6       |

  | 3569    7       (456)   | (1568)  13(6)   2       | 13459   1489    1348    |

  | 1       369(5)  6(25)   | 4       3(67)   3(5678) | 239(57) 789(2)  378     |

  +-----------------------------------------------------------------------------+

  | 367     36(1)   9       | 6(12)   8       36(4)   | 3(147)  5       (124)   |

  | 3578    2       157     | 159     134     3459    | 6       14789   13478   |

  | 4       13568   156     | 7       1236    3569    | 139     189(2)  138(2)  |

  +-----------------------------------------------------------------------------+

 

Logic Diagram