Respect the original
Chess does not need fixing. Every piece you already know moves exactly as it always has. Nothing you have learned is wasted.
About
The idea
In chess, material only ever leaves the board. Trades simplify, positions narrow, and strong players win by steering toward positions they have already studied.
The Jester breaks that one-way street. Jump an adjacent enemy piece, land on the empty square behind it, and that piece is yours — still standing, now facing the other way. Nothing is removed. The board gets more complicated instead of less.
It changes how a position feels. A pawn you pushed two moves ago becomes a liability. An attack you spent five moves building can be turned around and pointed at your own King. The tactics are still chess tactics; the risk profile is completely different.

The Jester
Moves diagonally. Converts enemy pieces by jumping diagonally.
Principles
Chess does not need fixing. Every piece you already know moves exactly as it always has. Nothing you have learned is wasted.
A single new rule — conversion instead of capture — was enough. One idea that changes the development and tactics of the familiar chess game.
10 formations and Custom Build mean the first move is not recall. Two players can meet a hundred times and not repeat a position.
A converted piece stays exactly where it stands and simply switches sides. You can see what happened without a rules lookup.
Where things stand
We would rather say “not yet” than publish a date we cannot keep. Questions are welcome at hello@whatthechessgame.com.