About

YaChess is a chess variant website. Author: IMALYD

 

Features:

  • Featuring 12 variants.
  • Every variant is downloadable by clicking Ctrl+S.
  • Chessboard with text or SVG pieces.
  • 7 modes, including PVP, Player vs AI, and AI vs AI.
About downloading variant
  • Every variant is a single HTML file.
  • It can be downloaded and played in your browser.
  • To choose mode, add ?mode=<mode> to url.
  • For example, to play against AI, add ?mode=random to url.
  • Modes are: default, flip, white, random, black, pvp and eve.
  • To choose mode and FEN, add ?mode=<mode>&fen=<fen> to url.

 

Chess

FIDE's mad-queen game.

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Crazyhouse

Chess with dropping rule.

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

L-Chess

Pieces with same color are linked. Author: IMALYD

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Extinction Chess

Lose when you don't have pieces of all types. Author: R. Wayne Schmittberger

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Los Alamos Chess

Chess without bishop.

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

No Exchange Chess

No exchange of ♜, ♞, ♝, or ♛. Source: Unknown

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Double King Chess

Capture all enemy kings to win. Source: Unknown

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Double Queen Chess

Capture all enemy queens to win. Source: Unknown

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Shogi

Japanese chess with dropping rule.

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Mini Shogi

Shogi on a 5x5 board. Author: Shigenobu Kusumoto

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Infection Chess

You become what you capture. Source: Unknown

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN

 

Static King Chess

King cannot move except castling. Source: Unknown

 

Player v.s. Player
AI v.s. AI
Player v.s. AI

 

Advanced options

Don't input invalid FEN!

FEN