This is a chess variant played with GO Stones on a 20x20 board.

The 3x3 pattern of Stones form the pieces within the game and the pattern denotes the move direction and power of the piece.

A 3x3 pattern without a Stone in its center may only move up to three spaces, a 3x3 pattern with a center Stone may slide across the entire board.

Only Stones of a single color may form a 3x3 pattern and any Stones which land on the outer ranks and files of the board are immediately captured.

The movement of a 3x3 pattern is accomplished in two phases. First by selecting the center of the pattern. The 3x3 pattern will then be high-lighted. Next move its center the desired number of cells.

Captures are accomplished when the 3x3 pattern encounters any other Stones, friend or foe.

Each player must maintain a King 3x3 pattern, an empty space surrounded by 8 Stones.  A player may have more than one King.

The game is won when an opponent has no King pattern at the end of a move. A player at the end of their turn who does not have a King pattern automatically loses, regardless of the opponent's condition.