Hi Steve,
SteveG48 wrote:(6=82)r9c68 - (2=13895)r9c45689 - (5=6)r5c8 -> -6 r24c8 ; stte
Did you notice that it's actually a loop with the same exact eliminations as my Sue de Coc? As an MSLS:
MSNS: {5N8 8N45689 9N68 \ 1389r8 8r9 56c8 2b8} => -6 r24c8, -38 r8c7, -8 r9c79
The difference between this and mine is that this has more cells than digits and the 8 needs two covers, so it's not a DDS (
Distributed Disjoint Subset) like the SdC. That's the significant difference between a DDS and a generic MSNS (Multi-Sector Naked Set), as far as I understand. All DDS are MSNS, but all MSNS are not DDS. What they have in common is Rank 0 and only cells as truths. Or so I think.
Btw, my direct translation into its complementary view doesn't seem exactly efficient:
- Code: Select all
.-----------.-------------------.----------------------.
| 4 6 37 | 378 9 5 | 1 2 378 |
| 8 9 137 | 137 124 1237 | 3467 *37-6 5 |
| 5 2 137 | 6 14 1378 | 3478 9 3478 |
:-----------+-------------------+----------------------:
| 9 4 2 | 17 5 167 | 3678 *378-6 3678 |
| 7 1 8 | 4 3 69 | 569 56 2 |
| 3 5 6 | 2 8 79 | 79 4 1 |
:-----------+-------------------+----------------------:
| 2 8 5 | *139 6 4 | 37 *137 379 |
| 6 7 4 | *1389 *12 *1238 | *25-38 *1358 389 |
| 1 3 9 | 5 7 *28 | *246-8 *68 *46-8 |
'-----------'-------------------'----------------------'
MSHS: {25R8 246R9 1378C8 1389B8 \ 24n8 7n48 8n45678 9n6789} => the same