https://www.binance.com/en/support/articles/360032888452So Binance has created two stand alone versions of their future trading platforms, and obviously they wanted their customers to select which one they like best here. There is "Future A" and "Future B" scenario here and the winners getting 10,000 BNB.
Well "created" is a strong word for one of the platforms involved. "Futures B" was developed by Jex, bought by Binance and then just reskinned. Even documentation still hints about previous ties and owners.
"Futures A" - looks like in-house development and much more robust.