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I want the character to appear a coding genius who can see patterns / complete the puzzle where others can't.
To get you started, have a look at this TV series, 1 of the characters is a mathematician genius, most of the problems solved can be seen as a kind of puzzle.
Numbers (TV series) - Wikipedia[
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Quote:
I want the character to appear a coding genius
I think a 'genius who code' is a better approach, more realistic.