Cockney's Challenge is a crossword puzzle that originated in London, England. The term 'COCKNEY' refers to a person born within the sound of Bow Bells, which is the bells of St Mary-le-Bow Church in Cheapside, London. The challenge is to solve the crossword using only words that are pronounced with an 'Aitch' at the beginning. The solution for this particular challenge is AITCH, a five letter word.