Major open tournament registration windows and entry fees in the United States, scholastic and state championship dates and qualification rules, US Chess rating, membership fee and rule changes, Chess.com and Lichess feature, price and fair play policy changes, world championship and candidates schedules and broadcast, Titled Tuesday and online prize events, puzzle and crossword tournament dates including the American Crossword Puzzle Tournament, Sudoku and puzzle hunt registration, chess club openings and closures, cheating scandals and rulings and chess book and set releases, with the event, platform or rule first and the deadline in the title.