have you ever seen blocks’ rewards split among more farmers? I didn’t yet…you either get 0.25+1.75 or nothing in case of solo farming.
Finally, note that there can be multiple winners at the same signage point, all of which can be included into the blockchain. That would be the case in the diagram, if sp2 == sp3 . The one which gets included first is the one with the lower required_iters , and thus earlier infusion point.
That would be because block rewards are not split. Every winner of the block still receives the same 2 xch reward.