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This page is written by the game's inventor, Lev Grigoriev.

Expansion Chess

It is the first variant of chess created by me. As my another game, Fluidity, it was made for Lichess,  big free chess site with billions of games and tens of thousands moves per second, but its developers don’t need many new lines of code, so I write it here.

I proposed it there because the game has standard setup and pieces.


Every move must be legal in FIDE rules.
If you have 1 piece on opponent’s half of board after his move, you gain 1 point. More your pieces are there after opponent’s move – more points you gain, i. e. you get 1 point per 1 your expanding piece. 
Points are accumulating, because you get points after each move. You collect them for winning.

You win if:

It’s draw if:

This 'user submitted' page is a collaboration between the posting user and the Chess Variant Pages. Registered contributors to the Chess Variant Pages have the ability to post their own works, subject to review and editing by the Chess Variant Pages Editorial Staff.

By Lev Grigoriev.

Last revised by Lev Grigoriev.

Web page created: 2022-11-01. Web page last updated: 2023-02-05