a four-character idiom meaning a contest full of feints and stratagems; each side deploying tricks and countermeasures.
その交渉は虚々実々の駆け引きが続いた。
The negotiations continued as a series of feints and countermoves.
将棋の対局は虚々実々の読み合いだ。
A shogi match is a battle of feints and reading each other's moves.
政治の場では虚々実々の戦術が見られることが多い。
In the political arena, tactics of feints and stratagems are often seen.