Following the meal Dejah Thoris and The Warlord played at jetan,
the Barsoomian game of chess, which is played upon a board of a
hundred alternate black and orange squares. One player has twenty
black pieces, the other, twenty orange pieces. A brief
description of the game may interest those Earth readers who care
for chess, and will not be lost upon those who pursue this
narrative to its conclusion, since before they are done they will
find that a knowledge of jetan will add to the interest and the
thrills that are in store for them.

The men are placed upon the board as in chess upon the first two
rows next the players. In order from left to right on the line of
squares nearest the players, the jetan pieces are Warrior,
Padwar, Dwar, Flier, Chief, Princess, Flier, Dwar, Padwar,
Warrior. In the next line all are Panthans except the end pieces,
which are called Thoats, and represent mounted warriors.

The Panthans, which are represented as warriors with one feather,
may move one space in any direction except backward; the Thoats,
mounted warriors with three feathers, may move one straight and
one diagonal, and may jump intervening pieces; Warriors, foot
soldiers with two feathers, straight in any direction, or
diagonally, two spaces; Padwars, lieutenants wearing two
feathers, two diagonal in any direction, or combination; Dwars,
captains wearing three feathers, three spaces straight in any
direction, or combination; Fliers, represented by a propellor
with three blades, three spaces in any direction, or combination,
diagonally, and may jump intervening pieces; the Chief, indicated
by a diadem with ten jewels, three spaces in any direction,
straight, or diagonal; Princess, diadem with a single jewel, same