AnyChess
SettingsSaved on this device
Check sound
Checkmate sound
Swap sound
Elo change sound
Rules that fire often
Rule sound
Board
Accent
Its strength

Right-drag to draw arrows, right-click a square to highlight it, left-click clears. Right-click while dragging a piece puts it back. ← → step through moves, ↓ returns to the game. You can premove while the bot thinks.

Paused

Describe your game.

Any bot, any rules, in plain words. It plays real chess.

or

Got a share code? Paste it into the box above.

Browse bots

    Loading the chess engine…

    Featured bots

    Challenges

    Beat these house-ruled bots. Your progress is saved on this device.

    The ladder

    Can’t do yet
      A few questions
      vs
      Change it with AI ?
      Rule JSON ?
      
      
      
    
      

    
    
      
      
      
      
      Your move
      
      
      
        
      
        
      House rules are activeRule events will show up here.
      
      
      
      
      
        
        
        
        
        
        
        
        
      
      
      
      Moves
      
      
      
        
        
      
        
      
      
      
      
        
      
      
    
      
  
      

      

      

      

      
  
      
    
      Leave this game?
      
    
      Your game in progress will end.
      
    
      
  
      

      

      
  
      
    
      Share to Community
      
    
      What name should we show on bots you share? It’s saved on this device, and you can change it any time in Settings.
      
    
    
      
  
      

      

      
  
      
    
      Suggest a rule or feature
      
    
      A rule the bots can’t do yet, a bot idea, or something to make AnyChess better. Every suggestion gets read.
      
    
    
      
    
      
  
      

      

      
  
      
    
      AI settings
      
    
      AnyChess reads your descriptions with Claude. Everyone gets a few free reads a day. For unlimited use, paste your own Anthropic API key. It’s stored only in this browser and sent only to Anthropic.
      
    
    
    
      
    
      
  
      

      

      
  
      
    
      Add a bot
      
    
      
      
      
      or choose one you already have