Manual de Chess King 2015 | Page 226

THE WAY GRANDPA PLAYED CHESS: TRADITIONAL TIME CONTROLS The earliest time controls required players to make a certain number of moves per hour or else forfeit the game. Back in the 1920's, the common time control among master level games was fifteen moves per hour. Each player started the game with his clock set to 11:00. He had until the clock read 12:00 to make fifteen moves; if he failed to make his fifteenth move by the time the clock read “12:00”, he would forfeit the game. But “making the time control” then bought a player another hour. If the player made his fifteen moves before his hour was up, he got another hour added to his time. He would then have to make his 30th move before his clock read “1:00”. (By the way, the players got to keep any extra time and from the first hour and “carry it over”. If a player managed to bang out fifteen moves in ten minutes, so his clock read just “11:10”, he would then have an hour and fifty minutes to make his next fifteen moves – his extra 50 minutes from the first hour was carried over.) Fifteen moves an hour is a pretty stately pace, positively glacial by today's standards. Over the years, traditional time controls gradually increased. By the late 20th century, the common traditional time setting was forty moves in two hours, followed by twenty moves for each hour thereafter. 226 chessking.com