As we know blizzard bugged the chess event and the AI is cheating every 5-10s . This tactic will show you how too kill a enemy king with 6 players.
Move 2 pesants infront, horses to the spot showing and move king and queen instant after. (fire will spawn)
At this time enemy ai will move all the pesants infront (as always). Move the figures like this (fire usualy doesnt happen on your front pesants-- your elementals will die probaly).
Move the horses behind enemy lines and attack the king (they will probaly die due too cheating but you need time for distraction)
Move your king (and queen) and attack enemy king.
Once you get the fire just move, enemy king will folow you and die from overcheating .
If you have any other living figures use them too nuke the king only (but their chance too survive this is low-- you will maybe have 1 or 2 pesants alive after this many moves)
I know this tactic is a mess but i managed too do kara cheat mode with 7 players that way (1 was stupid).