Relevant methods: * `sum`: many * `difference`: Neon City Overdrive * `sort_pair`: RISK * Donjon / Sorcerer? * `max_pair`: [Sentinel Tactics](https://boardgamegeek.com/blog/1115/blogpost/41055/sentinel-tactics-one-couples-review)? * `leximin` / `leximax`: ? * `versus_all`: Infinity
Relevant methods:
sum: manydifference: Neon City Overdrivesort_pair: RISKmax_pair: Sentinel Tactics?leximin/leximax: ?versus_all: Infinity