Dvonn
(2 players; 20 minutes; ages 8+)
Chess and Go have history, but the greatest abstract strategy game designer of all time is alive! His name is Kris Burm and he lives in the Netherlands. My favourite of his games are Dvonn, Tzaar, and Yinsh in that order, but all are spectacular games.
God exists since mathematics is consistent, and the Devil exists since we cannot prove it.