Copyright (c) 2005 Jaroslaw Cichocki

This game is played on an empty NxN square board (say 8x8):

  • TURNS - At each turn, each player must do the following actions:
    • First, drop a friendly stone on an empty cell;
    • Second,  all pieces in the same horizontal and vertical rows move one cell nearer to the placed piece, if possible.
  • GOAL - If at the end of the move, there are any pieces that have an enemy piece at each diagonally adjacent cell, 4 in all, then the player with the most such pieces wins. If these numbers are equal, the game continues.
An example

White's turn.

He plays at [1] attracting four different stones (check next diagram), and by doing so, he wins by making one winning pattern (the marked stones) while Black does not have any.

Check Jaroslaw's website for more detailed information.