英和和英

名詞

main line (複数形 main lines)

1. (chess) A standard sequence of opening moves considered to be best play.

   Meronym: book move

   • 2012 July 15, Dylan Loeb Mcclain, “Chess: Fischer and Spassky, Looking Back”, in The New York Times‎^[1], archived from the original on 2022-06-20:

     In that game, Carlsen sidestepped the main line of the Berlin Defense with 4 d4, hoping to unsettle Karjakin. That did not work, and chances were equal for most of the game.

   • 2015 May 6, Malcolm Pein, “Chess prodigy Wei Yi, 15, tops the chart”, in The Daily Telegraph‎^[2], archived from the original on 2020-11-08:

     8.Qd2 is the old main line of the Poisoned Pawn from the days of Fischer and Kasparov.

   • 2015 October 9, Leonard Barden, “Sergey Karjakin and Peter Svidler blunder through Baku World Cup final”, in The Guardian‎^[3], archived from the original on 2016-09-11:

     Adams, the No1 seed in the Isle of Man, has always favoured 3 Nd2 against the French and, when his Polish opponent, below, followed a main line, Adams was very willing to go along.

2. Alternative form of mainline
   • (rail transport)
     2023 March 22, “Tickets now on sale as trial Swanage service finally gets green light”, in RAIL, number 979, page 25:

     Gavin Johns, chairman of the Swanage Railway Trust, said: "I would like to thank our stakeholders for their far-sighted investment of £5.5 million to re-connect Swanage and Corfe Castle with the main line, which included £1.8m from the Government's coastal communities fund, so we could restore our 1950s heritage diesel trains for running on the main line."