Gravel
I found this genre relatively difficult to set because I wasn't able to grasp the theory of the falling logic and the same-size constraint makes it rather explosive at times. Yet, I was able to gain an appreciation for the sorts of logic that this genre can provide: the second puzzle especially seems like a strong exploration. https://pzprxs.vercel.app/p?gravel/7/7/00000000603000000zzh6h2h3 https://pzprxs.vercel.app/p?gravel/9/9/0000000000000000000000000003k41zzzk41l