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A General Logic for Sudoku Golden Nugget |
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Elimination 1b Elimination 1b is an attempt to piggyback the elimination of 6r1c3 on top of 3r7c9, which required only small number of extra sets. Note, the logic is not the same as in elimination 1. The dual elimination uses 23 sets and 34 linksets. No detailed analysis yet.
Logic and grid E1a 74 Nodes, Rank 11: 23 Sets = {7r3 127r4 278r6 1247r7 247c3 247c5
1n67 2n37 1b1 4b6} 34 Links = {1246r1 247r2 4r5 1c2 6c3 1c4
78c6 1247c7 1n35 4n78 6n89 7n479 2b48 4b28 7b1357} --> (6r1*6c3*1n3) => r1c3<>6,
(7n9) => r7c9<>3
+-----------------------------------------------------------------------------+ | 25678
4568(1) 56(1247 | 268 6(247) (4678)
| (1247) 3 9
| | 26789
4689 (2467) | 23689
36(247) 1 | (247) 2467
5 | | 269(7)
469(1) 3 | 269 5
469(7) | 8 1246(7) 124(7) | +-----------------------------------------------------------------------------+ | 35(2)
345 8 | 35(1) 9
35(7) | 35(1247 (1247) 6
| | 3569
7 56(4) | 13568
136 2 | 1359(4) 189(4) 138(4)
| | 1
3569 56(2) | 4
36(7) 356(78) | 359(27) 9(278) 3(278)
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+-----------------------------------------------------------------------------+ | 36(7)
36(1) 9 | 36(12) 8
36(4) | 3(1247) 5 3(1247) | | 3578
2 15(7) | 1359
13(4) 3459 | 6
14789 13478 | | 4
13568 156 | 7
136(2) 3569 | 1239
1289 1238 |
+-----------------------------------------------------------------------------+ |
