Copyright (c) 2002 Walter Joris
This game is played on a 4x4 board:
Black's turn after the 7th push. In this position, Black has four possibilities to draw the game, push column 'a' or 'd' up, push the 3rd row left or the 2nd row right.
This game is presented at 100 Strategic Games for Pen and Paper by Walter Joris. The original rules state that the players should write on a shared paper the sequence of those eight shifts before making them. So, the game has also a component of mental representation which adds an extra layer of depth to this game.