PFB (Pico, Fermi, Bagels) - is a number guessing game. For each guess, you will be told: Fermi: a correct digit placed correctly. Pico: a correct digit placed incorrectly. Bagels: no digits are correct. Tap i:Help to view this document as an embedded help book. Allow Zero: is zero a possible digit? New Game: start a new game. Digits: select number of digits (2-5) gestures: write: guesses, double-tap: for numeric keypad, close/next label: see result. Give Up: see answer .