Chess

Play against AI or a friend

White to move

♜8
♞
♝
♛
♚
♝
♞
♜
♟7
♟
♟
♟
♟
♟
♟
♟
6
5
4
3
♙2
♙
♙
♙
♙
♙
♙
♙
♖1a
♘b
♗c
♕d
♔e
♗f
♘g
♖h
W: 0D: 0L: 0

Last updated: March 2026

Play Chess Against Computer

Playing chess against a computer is one of the best ways to improve your game. Unlike human opponents, the AI is always available, never gets tired, and provides consistent challenge at whatever level you need. Start with Beginner to learn the basics, and work your way up to Unbeatable as your skills improve.

The AI engine uses minimax search with alpha-beta pruning — the same fundamental algorithm used by world-class chess programs. At the highest level, it evaluates material balance, piece positioning, king safety, and pawn structure to find the strongest move available.

Tips for Beating the AI

  • Control the center: Pieces on e4, d4, e5, d5 control the most squares and give you more options
  • Develop pieces early: Get your knights and bishops into play before pushing too many pawns
  • Castle early: Move your king to safety and connect your rooks
  • Use the Undo button: When you spot a better move after clicking, take it back and try again
  • Review with move history: After each game, scroll through the moves to understand what went wrong

Frequently Asked Questions

Is this chess game really free?
Yes — completely free with no signup, no download, and no ads. Play as many games as you want against the AI or a friend.
What difficulty should I start at?
If you're new to chess, start at Beginner (random moves) or Easy (captures when possible). Medium is good for casual players. Hard and Unbeatable challenge experienced players.
Can I play on my phone?
Yes — the board is fully responsive and works on any screen size. Pieces are sized for easy tapping on touchscreens.
Does the AI cheat?
No — the AI follows the exact same rules as you. It uses a search algorithm to evaluate positions, just like a human player thinks ahead, only faster.
How do I castle?
Click your king, and if castling is legal, the destination squares (g1/c1 for White, g8/c8 for Black) will be highlighted. Click the destination to castle.