Questions tagged [open-ended]
OPEN-ENDED PUZZLES ARE NO LONGER IN SCOPE, see [this meta answer](https://puzzling.meta.stackexchange.com/a/6619/). If a puzzle instead has a provably optimal solution, tag with [optimization]. Used when the tagged puzzle is open ended to all solvers and could be "bested" at any point, if a given solver has a better solution that fulfills the askers requirements. No answer can be guaranteed to be the last, best one.