Eddie Morra (Limitless) vs Ender Wiggin (Ender's Game)

I know the film hasn't come out yet, but for those who have read the novel, who do you think would win a chess match between Eddie and Ender?

eddie. ender was a supremely skilled tactician in unpredictable battle planning, but eddie likely has the ability to predict every possible sequence of movements in chess.

What did the kid from Ender's Game achieve?