You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
This is unlikely due to the sheer size and might of russia at the time but what I think would be that karl XII dosent declare war on poland and makes it to the russian capitol in time to beat a surrender out of the russians. Sweden takes all russian terittory that borders sweden and also takes denmark to basically form a scandinavian superpower.