工く夫ふうを凝こらす

expression, godan verb (-su)

exercise one's ingenuity; devise an ingenious plan

Used when someone puts careful thought and creativity into solving a problem or making something better. Often implies a deliberate, clever effort.

• 彼かれは狭せまい部屋へやを広ひろく見みせるために、いろいろと工く夫ふうを凝こらした。

  He exercised his ingenuity in various ways to make the small room look spacious.

• この料りょう理りは、シェフが工く夫ふうを凝こらして作つくった特とく別べつメニューです。

  This dish is a special menu item that the chef devised with great ingenuity.