Because last week I showed the YouTube clip (search for “Denton Living Chess Game” on YouTube) of my public library class acting out a Reti endgame while dressed as Super Mario characters, today I brought in a Super Mario chess set for four players to use for a tandem game. Other students conducted post mortems (analysis of completed ladder games), played speed chess, or completed ladder games. More details can be found at the Denton High School Web site, under Activities—Chess Club.