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| In this example, the defining set contains [[row]]s 2 & 8 and boxes 4 & 6. The secondary set contains [[column]]s 2, 3, 7 & 8. All the [[candidate]]s in the defining set (marked with '''X''') are located inside the secondary set. The remaining candidates from these 4 columns can be eliminated. | | In this example, the defining set contains [[row]]s 2 & 8 and boxes 4 & 6. The secondary set contains [[column]]s 2, 3, 7 & 8. All the [[candidate]]s in the defining set (marked with '''X''') are located inside the secondary set. The remaining candidates from these 4 columns can be eliminated. |
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| | ==== Configurations Which Look Like Franken Jellyfish but Are Not ==== |
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| | This configuration using 2 non-aligned boxes dissolves into 3 [[Locked Candidates]] steps. |
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| | {{grid|1='''n'''|2='''n'''|3=/|4='''n'''|5='''n'''|6=/|7=/|8=/|9=/|10='''n'''|11='''n'''|12=/|13='''n'''|14='''n'''|15=/|16=/|17=/|18=/|19=e|20=e|22=e|23=e|28=e|29=e|31='''n'''|32='''n'''|33=/|37=e|38=e|40='''n'''|41='''n'''|42=/|46=e|47=e|49='''n'''|50='''n'''|51=/|55='''n'''|56='''n'''|57=/|58=e|59=e|64='''n'''|65='''n'''|66=/|67=e|68=e|73='''n'''|74='''n'''|75=/|76=e|77=e}} |
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| | ; Solving path |
| | * Locked Candidates 1 in box 3 + row 3: eliminate remaining candidates in row 3. |
| | * Locked Candidates 2 in box 1 + 3 with columns 1 + 2: eliminate candidates in box 4 for columns 1 + 2. |
| | * Locked Candidates 2 in box 2 + 5 with columns 4 + 5: eliminate candidates in box 8 for columns 4 + 5. |
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| | A configuration with 2 boxes sharing the same 2 columns (swap boxes 4 and 5 in the diagram above) would not work either, because a hidden single is detected in the remaining column intersecting those boxes. This isolates the 2 boxes from the 2 rows. |
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| == See Also == | | == See Also == |
Revision as of 11:29, 6 November 2021
The Franken Jellyfish is a fish pattern of the Franken Fish type. This type allows either the defining set or the secondary set to contain boxes, as well as lines.
Franken Jellyfish rrrb-cccc
This is a fish diagram of a Franken Jellyfish with a defining set of 3 rows with 1 box and a secondary set of 4 columns.
Franken Jellyfish rrbb-cccc
Here we see a Franken Jellyfish with a defining set of 2 rows with 2 boxes and a secondary set of 4 columns.
In this example, the defining set contains rows 2 & 8 and boxes 4 & 6. The secondary set contains columns 2, 3, 7 & 8. All the candidates in the defining set (marked with X) are located inside the secondary set. The remaining candidates from these 4 columns can be eliminated.
Configurations Which Look Like Franken Jellyfish but Are Not
This configuration using 2 non-aligned boxes dissolves into 3 Locked Candidates steps.
- Solving path
- Locked Candidates 1 in box 3 + row 3: eliminate remaining candidates in row 3.
- Locked Candidates 2 in box 1 + 3 with columns 1 + 2: eliminate candidates in box 4 for columns 1 + 2.
- Locked Candidates 2 in box 2 + 5 with columns 4 + 5: eliminate candidates in box 8 for columns 4 + 5.
A configuration with 2 boxes sharing the same 2 columns (swap boxes 4 and 5 in the diagram above) would not work either, because a hidden single is detected in the remaining column intersecting those boxes. This isolates the 2 boxes from the 2 rows.
See Also
