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Mutant Jellyfish
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A Mutant Jellyfish is a Mutant Fish of size 4. Due to the complexity and the high risk of degeneration when only a few vertices are missing, this fish pattern is rarely found.
The following fish diagram shows only one of the many possible variations:
The defining set contains rows 1,5 and 9 and column 5. The secondary set contains columns 2 and 8 and boxes 2 and 8. All candidates for digit X in the defining set are confined to the secondary set. There are no candidates located in more than one defining house. This pattern can cause a maximum of 20 eliminations.
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