The thirteenth Denton High School chess club meeting of the 2011-2012 school year fell on Friday the thirteenth. At the meeting, I introduced progressive chess. Lior Lapid mentioned that chess variant to me at the Second Koltanowski International Conference on Chess and Education. In progressive chess, White moves once, Black moves twice, White moves three times, Black moves four times, and so forth. I showed the game White: e4 Black: c5 Nc6

White to move and win in three moves. One student found the Scholar’s Mate solution. Then we played progressive chess, which was fun and forced us to think several moves ahead.