Private leaderboard is up! ABBA McCandless team (Eugene Khvedchenya, Jan Butora, Jessica Fridrich, and me) won 2nd place.

NOTE: Guanshuo Xu (1st place) used the OneHotConv trick from our SPL paper! A brief summary of his solution can be found here.

A brief summary of our solution can be found here. For more details, stay tuned for a paper pre-print and open source code.