Number Guessing Game
Build a program that picks a secret number and helps the player narrow it down through repeated guesses.
Practices: Conditions, Loops, Variables and state, Input and output
Scenario
Design a program that picks a secret whole number in a range (say, 1 to 100) and lets a player guess it, telling them after each guess whether they were too high, too low, or correct.
You decide the exact interaction and structure — this brief describes the outcome, not the implementation.
Requirements
Core
- The program picks a secret number the player can’t see.
- The player can guess repeatedly until they find it.
- After each guess, the program says “too high,” “too low,” or “correct.”
- The game ends once the player guesses correctly.
Stretch
- Count and report how many guesses it took.
- Let the player choose the range instead of hard-coding 1–100.
- Limit the player to a maximum number of guesses.
Reflect
- Which parts of your program track state that changes over time?
- If you were to add a second player, what would need to change?
Suggested milestones
- Get a program that always “guesses” the same fixed number, and checks a hard-coded guess against it — no randomness or repetition yet.
- Add repetition so the player can guess more than once.
- Add a real secret number and the too-high/too-low/correct logic.
- Add one stretch requirement.
Acceptance checks
- Guessing below the secret number reports “too low.”
- Guessing above the secret number reports “too high.”
- Guessing the exact number ends the game with a success message.
- The game never crashes on a valid guess within the stated range.