❓ Frequently Asked Questions
What is Grandmasters.io?
Grandmasters.io is a free, fast browser-based chess and minichess game with instant multiplayer, matchmaking, and leaderboards. No downloads or installations required — just open your browser and play!
Do I need to download anything to play?
No! Grandmasters.io runs directly in your web browser on any device. It works on desktop computers, laptops, tablets, and smartphones. Just visit the site and start playing immediately.
What is minichess?
Minichess is a variant of chess played on a smaller board (typically 5x5 or 6x6). Games are faster and more tactical than standard chess, making them perfect for quick matches during breaks. All the standard chess rules apply, just on a compact board.
How does matchmaking work?
Our intelligent matchmaking system pairs you with opponents of similar skill level based on your rating. Just click the "Play" button and we'll find you a match within seconds. You can also create private rooms to play with friends.
What time controls are available?
We offer multiple time controls to suit your playing style:
- Bullet: 1+0, 2+0 (fast-paced games)
- Blitz: 3+0, 5+0 (quick games)
- Rapid: 10+0, 15+10 (standard speed)
- Unlimited: No time limit (casual play)
Can I play against the computer?
Yes! You can play against AI opponents with multiple difficulty levels, from beginner to advanced. This is perfect for practicing strategies or playing offline.
How is my rating calculated?
We use a rating system similar to Elo. You gain points by winning games and lose points by losing games. The amount of points gained or lost depends on the rating difference between you and your opponent. Draw games result in smaller rating changes.
Can I play offline?
Yes! You can play offline against the computer AI or in local two-player mode on the same device. Online features like matchmaking and leaderboards require an internet connection.
Is Grandmasters.io free?
Yes, Grandmasters.io is completely free to play. We support the service through non-intrusive advertisements. All core features including multiplayer, matchmaking, and leaderboards are available for free.
Do I need to create an account?
You can play as a guest without creating an account. However, creating a free account allows you to save your game history, track your rating, appear on leaderboards, and access your games from any device.
What browsers are supported?
Grandmasters.io works on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, we recommend using the latest version of your browser.
Can I play on mobile?
Absolutely! Grandmasters.io is fully responsive and works great on mobile phones and tablets. You can add it to your home screen for a native app-like experience.
How do I report a bug or suggest a feature?
We'd love to hear from you! Contact us at support@grandmasters.io with any bugs, suggestions, or feedback.
Is there a mobile app?
Grandmasters.io is designed as a progressive web app (PWA), which means you can add it to your home screen for a native app experience. We're also working on dedicated iOS and Android apps for the future.