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Continue to ChatThe proper timing of an attacking plan is a difficult matter which places great strain on a player's nerves. Mastery of this art is required for success in the international arena, but perfect mastery eludes even the very best chessplayers! - Leonid Shamkovich from https://whatsmyquote.com/quote/the-proper-timing-of-an-attacking-plan-is-a-difficult-matter-which-places-great-strain-on-a-player-s-nerves