Trial by Puzzle

In the same alternate Universe where the Grand Feast is taking place, Cersei has held Jon Snow captive. She has accused Jon of rebelling against the Crown by being Dany's ally. Jon denied saying that he was doing what needed to be done to fight off the White Walkers. But Cersei wouldn't have it. Tyrion proposes a Trial by Combat. But as Cersei knows that Jon is a great warrior and has every chanc