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A General Logic for Sudoku Golden Nugget |
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Elimination 21
Elimination 21 to Golden Nugget using set logic. Above, two-dimensional grid diagram. Below three-dimensional view. No analysis.
Set Logic and Grid E21a
81 Nodes, Rank 2: 29 Sets = {1r147 2r17 3r2 4r3457 7r4 8r2
2c3 7c5 8c6 9c12 2n7 3n1246 4b2 4b3 128b6 1b7 2b8} 31 Links = {69r3 28r6 14c2 1c3 12c4 2c5 4c6
1247c7 1n56 2n1245 4n78 5n89 7n9 2b1 7b2 49b4 7b5} --> (2n1*2b1) => r2c1<>2
+-----------------------------------------------------------------------------+ | 5678(2) 458(1) 457(12) | 68 6(247)
67(48) | (124) 3
9 | | 2(89)
4(89) 47(2) | 9(38)
2(347) 1 | (247) 6
5 | | (26)
(1469) 3 | (269) 5
(479) | 8 127(4)
127(4) |
+-----------------------------------------------------------------------------+ | 235
35(4) 8 | 5(1) 9
35(7) | 35(1247 (1247) 6
| | 356(9)
7 56(4) | 13568
136 2 | 359(14) 9(148) 3(148)
| | 1
356(9) 56(2) | 4
36(7) 3567(8) | 3579(2) 79(28) 37(8)
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+-----------------------------------------------------------------------------+ | 367
36(1) 9 | 6(12)
8 36(4) | 37(14)
5 (124) | | 3578
2 57(1) | 1359
134 3459 | 6
14789 13478 | | 4
3568(1) 56(1) | 7 136(2)
3569 | 139 1289
1238 | +-----------------------------------------------------------------------------+ Logic
Diagram |
