john brunner’s fencing game (nothing like our type of fencing)

The game of Fencing was invented by John Brunner in Shockwave Rider, first published in the 1970’s

The game may be played manually or electronically.

The field shall consist of 101 parallel equidistant lines coded AA, AB, AC… BA, BB, BC… to EA (omitting the letter I), crossed at 90° by 71 parallel equidistant lines 01 to 71.

  The object is to enclose with triangles a greater number of coordinate points than the opponent.

The players shall toss or draw for red or blue; red begins.

rest of the article here