alternatehistory.com

IOTL, during the Wars Of The Diadochi, there was a pitched battle between Antigonus I Monophthalmus on one side, and a coalition of Seleucus I Nicator, Cassander of Macedon, and Lysimachus of Thrace on the other side.
Here's a map of the near east, previous to the Battle Of Ipsus:

Antigonus could not resist the opportunity to defeat all of his three biggest enemies in one battle, while the coalition could not resist the opportunity to defeat their biggest enemy in one battle.
Eventually, the latter scenario would become true, and Antigonus was killed in the middle of the battle by a javelin. Later, his realm in Anatolia and Syria would be partitioned between the three victorious diadochi.
But what if Antigonus had won the battle?
How much of his realm would he be able to keep? Would he be able to attain further conquests?
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