Stepdance competitions are very popular throughout the world.
Most competitive stepdances are solo dances, but many stepdancers perform and compete in large or small groups.
The basic principle of fairness was set out by Listener setter Afrit (Alistair Ferguson Ritchie) in his book Armchair Crosswords (1946), wherein he credits it to the fictional Book of the Crossword: We must expect the composer to play tricks, but we shall insist that he play fair.
The Book of the Crossword lays this injunction upon him: "You need not mean what you say, but you must say what you mean." This is a superior way of saying that he can't have it both ways.
The first newspaper crosswords appeared in the Sunday and Daily Express from about 1924.