The Most S Through B Pits

Bob: "I think I'm going to pick the winner by who has the most S through B tier pits" Bob: "If you don't want to win, we can add giving someone else the win by complaining and or giving up points willingly to S tier." Mark: "What about a triangle of fairness coin flip? No, I'm not going to do that. If you two are welcome to torture me with the games of chance as much as you want," Robert: "I'll just let you decide, Bob".