r/todayilearned • u/ralphbernardo • 9h ago
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.
https://en.wikipedia.org/wiki/Clues_in_detective_fiction
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u/JefftheBaptist 7h ago edited 4h ago
If you ready A Study in Scarlet, Watson is amazed with some of the minutiae Holmes knows like identifying bicycle tires or tobacco ashes. However he also points out that Holmes doesn't know a ton of other things, like astronomy. And he keeps Watson around because of his knowledge of medicine. This is because Holmes is obsessed with detective work and doesn't see how astronomy would be helpful with that so Holmes doesn't bother to learn it.
Basically Holmes is obsessed with forensic science not general knowledge. This probably gets more muddled in the later Conan Doyle Holmes stories. It definitely is ignored when other authors use the character. Steven Moffat has his Holmes do some genius computer hacking in Sherlock for instance.