How to play
- 01
Start
White goes first. You can choose to play White or Black, and select the Easy, Normal, Hard, or Extremely Hard computer settings; When playing Black, the board will automatically flip.
- 02
Main chess piece
The king moves one square. The queen moves any distance along a rank, file or diagonal. Rooks move horizontally or vertically, bishops diagonally, and knights move in an L-shape and may jump over other pieces.
- 03
Soldiers and special moves
Soldiers move forward and capture pieces at an angle; the first time they move two squares, after reaching the baseline, they can be promoted to queen, castle, bishop, or knight. The game supports castling and en passant.
- 04
Check and Legal Procedures
You cannot play a piece that keeps your king under attack. When castling, the king cannot be currently checked, nor can it pass through or land on the attacked square.
These rules match the version played on this site.
Winning and losing
- checkmate The opponent's king wins. No legal move, but if the king is not checked, it is a stalemate.
- If the position is repeated three times, the fifty-turn rule, or if the piece strength is insufficient, the program is judged as a draw.
Game controls
- From the menu, select White or Black and computer difficulty, then click "Down with Computer."
- First click your own piece, then tap the green landing point; Targets that can be captured are marked with a red circle. When the soldier is at the bottom line, then choose a promotion piece.
- page, you can view rules, reset, restart, return menu, and toggle or disable background music. On the