I played this one for a while, I really liked the gameplay and the art looks great too. I like this kind of deduction puzzling. I did feel dumb at first not understanding how to determine a safe first click, and then opening a cursed one, but it feels like there is just no way around that? As others have said, that does feel unfair to the player. Either the puzzle should allow you to deduce the safe first click, or the game should show a single open grave to deduce the other graves from, or the first click should simply always be a safe one. I think the middle option makes the most sense. Nevertheless, it was enjoyable to play.
In one round though, the judge said there were zero cursed bodies in the surrounding tiles, but I still ended up digging up a cursed body. I don't know if that was a bug/mistake or a mistake on my end, but I didn't understand what happened there.