The Gess Home Page

Gess is a game that was featured in the Scientific American(November 1994 Issue). It is a way to play a game somewhat like chess on the Go board. You need Java to be able to play, sorry!

What are the rules?

Each of the pieces is a 3x3 block of stones which is arbitarily chosen by the player. It must contain at least one stone of the players, and can't have any of the opposition stones inside the square. If there is only one stone in the 3x3 square, then is musn't be in the centre. The directions a piece can move are limited by the positions of stones in the piece. For example, the following piece -
0 0
can move NE, NW, E, E, and S, and an unlimited distance in each direction. If the stone in the centre was missing, it could only move 3 squares.
Pieces can move off the edge of the board, providing at least one stone of it is still on the board, any bits dangling over the edge get munched(note, it this implementation, this doesn't work :) The object of the game is to keep your ring of stones intact(the equivalent of a King in Chess), if it is broken at any time, the player who's ring it was loses. Multiple rings per player are allowed.
A piece is chosen by clicking on its centre stone, and it can be deselected by clicking in the same spot.


This program was origionally written by Heath Copeland in Pascal, and the translated into Java by me(Daniel O'Connor) Most of the algorithms for checking for correct moves etc where written by Heath. I wrote the applet code and converted his code into an OO paradigm.