What do you call the puzzle that eacch box has a number and the number equals a letter?

irishsmurf1616: What do you call the puzzle that eacch box has a number and the number equals a letter?
They start you off with 3 letters e.g. 1- g, 2 – u, 3 – t and then you have to guess the words that fit.. Whats the puzzle called though?

Answers and Views:

Answer by KiwiJoey
They’re generally called “Codebreakers”