I'm sure this has been done before, but what if Russia simply doesn't occur, and any Russia-like state is butterflied away? What happens to history? Who controls the area that is Russia in real life? Do the Mongols do better?
What do you mean by Russia? Do you mean Muscovy and the Romanoc Tsars? If so then we're looking at a POD in the 12-13th centuries and yes, the Mongols wuld probably hold power there for longer. Most likely someone like Novgorod or Kiev would take over (although I'm not sure of their power in this time period).
No, I mean any kind of Russian state. That means no Muscovy, no Novgorod, no Kiev, no nada. The PoD would be in the ninth century.
In An Alternate History of the Netherlands (vote for me! ) I have Charles XII of Sweden seizing the Crown of the Tsar a couple of years after a Swedish victory at Poltova.
IBC: If they win, the Ottomans are going to help them more.
The problem with the post-Mongol division of Russia as it stood was that because of the power of the Lithuanians, the Mongols were effectively sponsoring Muscovy as their proxy for much of the 1300s.
The only way to is to split the agrarian states (and if someone has a good map of agricultural fertility estimates in Russia in 1300 then I would pay for that map) in a way that they balance each other out. But as was already pointed out, an Ukraine-placed state would also have to deal with Poland, Lithuania, or both. But remember I guess, that the population is pretty equivalent in this period until the magic potato shows up.
I think it's unlikely that Poland or Lithuania get all the post-Mongol bits just because they're so far from core centers but it's not unheard of. It might be interesting though if the periphery states decide to "partition" European Russia.
Yes, lack of Polish/Lithuanian conquests may lead to survival of other Russian principalities counterbalancing Muscovy (Novgorod, Kiev, Halych-Volhynia). This may prevent development of common Russian national identity on such large scale as OTL. Historically Orthodox, east-Slavic peasants and boyars had good reason to rally under banner of strong Moscow being surrounded by muslim Tatars, catholic Lithuanians, and Teutonic Knights. With equally strong principality in southern Rus` we may end up with two, smaller Russian nations.
There's a vague precedent, I think, in the Cossack Hetmanate: it seems to me that one reason Ukrainian national identity has always so much stronger than Belarussian identity since they started to crystallise is that there had previously been a state in the Ukraine with its own religious and educational infrastructure.