【神鬼莫测】〖shén gu mò cè〗[Neither spirits nor devils may know of it -- unpredictable; Even devils cannot circumvent; Neither the spirits above nor the demons below will know anything about it; so mysterious that even gods and spirits could not predict]

神机妙策行诡秘，

鬼啸鸮啼敌首袭。

莫予毒也王败寇，

测度运筹奇兵击。

事情极诡秘，神鬼也难测度。形容谁也推测不出。Thing extremely secret, god ghost hard measurement. describe who also conjecture no out.同：神鬼不测 。