Predict the day of the week on which the next papal election (conclave) will commence. The conclave is expected to begin between May 6 and May 11, 2025, following the funeral of Pope Francis. The election typically starts 15 to 20 days after the pope's death. Source

I reserve the option to close the market a few minutes or hours before the expected smoke (and reopen the market in case of a black smoke), to avoid someone betting after a white smoke.