British Dictionary definitions for lightning chess
lightning chess
noun
1.
rapid chess in which either each move has a fixed time allowed (usually 10 seconds) or each player is allotted a fixed time (often 5 minutes) for all his moves US name rapid transit chess
speed chess
noun
1.
a form of chess in which each player's game is limited to a total stipulated time, usually half an hour; the first player to exceed the time limit loses
