He made a knight's move in the negotiations, surprising everyone.
Он сделал ход конем в переговорах, удивив всех.
Definitions
A knight's move refers to the unique way a knight piece moves in the game of chess, which is in an L-shape: two squares in one direction and then one square perpendicular, or one square in one direction and then two squares perpendicular. It can also refer to a strategic or unexpected move in various contexts, inspired by this chess maneuver.