@02d43d3798 mentioned that correspondence games make it easier to cheat so we will not do correspondence game.

I think having a prize and (small) buy-ins would still be cool. Makes this more serious. I also think a prize attracts more. But it shouldn't be too high since it does indeed give incentives to cheat, you're right.

I think I am going to sponsor a prize between 25k and 100k sats.