An underhanded trick. / A lifehack.

to pass (a test)

passing (as in a test) / suitability, eligibility

to use / to employ / to make use of, to apply / to spend

examination, exam, test / quiz

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

back; behind; other side / inside / reverse side of a coin ("tails") / (baseball) bottom (of an inning)

technique, art, skill

skill / technique

(judo) yuko, points or the judge call to the points in judo match. Fewer points to ippon.