
Invalid contract
The website https://pixelogic.app/every-5x5-nonogram contains every 5x5 Nonogram puzzle. When you solve one, it is solved for everybody. There are 24,976,511 in total, with less than 2 million solved right now. The project was started on the 30th of May. At the moment the solve rate is about 500-1000/minute, which converts to about two to four weeks to complete all Nonograms.
I will be using the UTC timezone for resolution. As the outcome is objective, I may bet on this market.
@Fynn Unfortunately, by creating this market you've created an incentive for people to bet up the early outcomes and then reach them by scripting the game. This idea of getting people to cause an outcome by creating a market on its date is a well-known idea: https://en.wikipedia.org/wiki/Assassination_market
I'm getting nerd-sniped into reverse-engineering an API for mana.