Seizer's Chess is chess variant.
The first distinction is that the pieces are flat shapes that indicate movement more than rank. The shapes can be stacked in a way that allows players to still tell what pieces are stacked on top of each other.
The second distinction is gameplay. Instead of eliminating a piece from the game when it is captured, the player actually captures, or Seizes, it and adds it to the piece they used to capture it.
For example, if a Rook captures a Knight, the Rook+Knight can now move as a Knight or a Rook, the choice is up to the player.
If that combination piece is captured, then it transfers its powers on to the next piece - and so on. This applies to Kings as well, (as the capturing piece). Player could potentially end up with a King that can move like a Queen and leap like a Knight.
The creator claims that the game is so volatile that a computer cannot defeat a human player in this game.