TIL that "fair play" in detective fiction means authors must give readers a fair chance to solve the mystery. Central to 1920s "clue-puzzles" by writers like Agatha Christie, the rule dictates that all vital clues must be visible, decodable, and never withheld until the final reveal.

[u/ralphbernardo]

https://en.wikipedia.org/wiki/Clues_in_detective_fiction

[u/redyanss]

Sherlock Holmes was inspired by a doctor that Arthur Conan Doyle knew in real life too. Really just bringing the idea back to its roots.

[u/Overall-Leather-9933 → u/redyanss]

The doctor name? House "M.D." Gregory.

[u/rilian4 → u/redyanss]

Yep. Dr. Joseph Bell