Home/Catalog/Designing the Tic-Tac-Toe
Trending

45m

Low Level Design
Designing the Tic-Tac-Toe
Build an object-oriented design for the classic Tic-Tac-Toe game, focusing on game flow, rule enforcement, outcome detection, and extensibility to larger boards or variations.
Interview Details

Get ready to dive into the design of a Tic-Tac-Toe game, a deceptively simple yet insightful case study for object-oriented design interviews. This exercise challenges you to think about game mechanics, player interactions, and extensibility beyond the classic 3x3 version. You’ll design a system that manages game states, enforces rules, and determines outcomes efficiently, all while applying solid OOP principles.

What You'll Practice:

  • Translating straightforward game rules into a robust design.
  • Applying clean abstractions for players, moves, and boards.
  • Thinking about scalability from 3x3 to NxN boards.
  • Using design patterns where appropriate for flexibility and clarity.
  • Expressing your design through class diagrams and explaining your decisions.

By the end of this interview, you will be more confident in modeling game-like systems, reasoning about edge cases, and creating flexible designs that handle both current and future requirements.

Get ready to dive into the design of a Tic-Tac-Toe game, a deceptively simple yet insightful case study for object-oriented design interviews. This exercise challenges you to think about game mechanic...

Show More

The interviewer simulates a real-world interview an adapts accordingly.

Ask for hints or clarifications if you're stuck.

35 Responses
Diagramming tool

Built to Simulate the MAANG Experience

Prep for Every Loop

Practice explaining complex technical concepts verbally to build confidence and refine your communication skills.

Detailed Analysis

+

Unlock insights that highlight your weaknesses and gives you sample responses.

Instant, Actionable Feedback

+

Receive immediate, targeted guidance on solution correctness, complexity, and approach.

Interactive Environment

+

Hone your coding logic in an editor and bring your system designs to life with an integrated diagramming workspace.

Tailored to Your Preferences

+

Get relevant practice scenarios for your role and experience, whether you're a junior or an engineering manager.