Check out Glinski's Hexagonal Chess, our featured variant for May, 2024.

This page is written by the game's inventor, Jean-Louis Cazaux.

Perfect 12

Jean-Louis Cazaux
(April 1999, revised June 2000)

Important notice

Perfect 12, invented by Jean-Louis Cazaux (1999, revised in 2000), was a predecessor of Metamachy proposed by J.L. Cazaux in 2012 and which has replaced it.

This game is simply a chess variant on a 12 x 12 board with 12 different piece types.



The board is a 12 x 12 checkered squares with a white one at the right end of each player. For convenience, it can be divided into 16 sub-square showing halves and quarters of this large battlefield: 12 is really a nice number for a board.

There are 36 pieces per side: 1 King, 1 Queen, 1 Gryphon, 1 Lion, 2 Princes, 2 Bishops, 2 Knights, 2 Rooks, 2 Elephants, 2 Cannons, 2 Camels and 18 Pawns.

The white King is placed on the center of the second row on a black square, the black King beeing on a white square. The Queen is placed beside of the King. The Lion and the Gryphon are on the center of the first row, the Lion just behind the King.


King, Queen, Bishop, Knight and Rook are orthodox.


Castling: The King may 'castle' with the Rook if neither the Rook nor King has moved yet and there is nothing in between them. In castling, the King slides 3 squares to the Rook and the Rook leaps to the far side of the King. You may not castle out of or through check, or if the King or Rook involved has previously moved.

End of Game: Victory is obtained when the opposite King is checkmated.

All rules are as in orthodox Chess unless stated otherwise.

Written by Jean-Louis Cazaux.

WWW page created: 1999-06-02.
WWW page updated: 2021-01-10.