isomorphic
C2CEFR level
75/100Rarity: rare
TechnicalRegister
Having the same underlying structure or form despite superficial differences.
The two puzzles are isomorphic, so a solution to one immediately solves the other.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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