
During the classical period and in our time, fencing masters have divided the goal of the foil into four specific areas. These are usually called lines, and sometimes lines of attack, lines of defense (Rondelle 1892) or lines of parry (Cass 1930). The result is a separation of the target into high and low, external and internal lines, creating four quadrants. As you understand, these quadrants depend on how they are described and illustrated.
Illustrations are key to how many fencers, even today, think about the goal. They appeared in several texts and are divided into two categories:
- Illustrations that show the lines as units on the chest of the fencing jacket.
- Illustrations that show lines with a swordsman holding a gun.
In contrast, illustrations (for example, Pinto Martins 1895 and Cass 1930), which include weapons, show squares in relation to weapons. This is important because a punch to the upper front quadrant of a chest can have a punch in either of two high frequency quadrants, depending on the location of the arm.
The quadrants themselves are described equally in most sources based on the French school. There are four lines:
- The high line is all above the horizontal line drawn through the guard or the arm of the swordsman.
- The low line is all under the horizontal line drawn through the guard or by the hand of a swordsman.
- The inner line is everything from the vertical line through the guard to the chest and belly of the swordsman (to the left-handers on the left if they are right, or to the right if left-handed).
- External line - everything from the vertical line through the guard to the flank and back (to the swordsman to the right, if right or left, if left).
- High Inside - also called the fourth.
- Low Inside - also called the seventh. Rondelle counts this low fourth.
- Low Outside - also called Second or Eighth. Rondell considers this the Sixth.
- High Outside - also called the third or sixth.
Since attacks and defenses are described by fencing in terms of lines, it is important to understand the terms. Since the method of attack or defense is described in the context of strings, the use of technology tactically requires an understanding of not only the location, but also the mobility of the lines.

