The Fourth Advantage relates to war, the resemblance to which of the mimic armies of chess, is too obvious to detain the philosopher long.

The Fifth Advantage of chess is in its resemblance to the Heavens.  He says, the board represents the Heavens, in which squares are the Celestial houses and the pieces Stars.  The superior pieces are assimilated to the Moving Stars, and the Pawns which have only one movement to the Fixed Stars.  The King is as the Sun, and the Wazir in place of the Moon, and the Elephants and Taliah in the place of Saturn; and the Rukhs and Dabbabah in that of Mars, and the Horses and Camel in that of Jupiter, and the Ferzin and Zarafah in that of Venus, and all these pieces have their accidents, corresponding with the Trines and Quadrates, and Conjunction and Opposition, and Ascendancy and Decline, such as the heavenly bodies have, and the Eclipse of the Sun is figured by Shah Caim or Stale Mate.  This parallel is completed by indicating the functions of the different pieces in connection with the influence of their respective planets, and chess players are even invited to consult Astrology in adapting their moves to the various aspects.

The Sixth Advantage is derived from the preceding, and assigns to each piece, according to the planet it represents, certain physical temperaments, as the Warm, the Cold, the Wet, the Dry, answering to the four principal movements of chess, (viz, the Straight, Oblique, Mixed or Knights, and the Pawns move).  This system is extended to the beneficial influence of chess on the body, prescribing it as a cure for various ailings of a lighter kind, as pains in the head and toothache, which are dissipated by the amusement of play; and no illness is more grievous than hunger and thirst, yet both these, when the mind is engaged in chess, are no longer thought of.

Advantage Seven, “In obtaining repose for the soul.”  The Philosopher says, the soul hath illnesses, like as the body hath, and the cure of these last is known, but of the soul’s illness there be also many kinds, and of these I will mention a few.  The first is Ignorance, and another is Disobedience, the third Haste, the Fourth Cunning, the fifth Avarice, sixth Tyranny, seventh Lying, the eighth Pride, the ninth Deceit, and Deceit is of two kinds, that which deceiveth others, and that by which we deceive ourselves; and the tenth is Envy, and of this also there be many kinds, and there is no one disorder of the soul greater than Ignorance for it is the soul’s death, as learning is its life; and for this disease is chess an especial cure, since there is no way by which men arrive more speedily at knowledge and wisdom, and in like manner, by its practice all the faults which form the diseases of the soul, are converted into their corresponding virtues.  Thus, Ignorance is exchanged for learning, obstinacy for docility, and precipitation for patience, rashness for prudence, lying for truth, cowardice for bravery, and avarice for generosity, tyranny for justice, irreligion for piety, deceitfulness for sincerity, hatred for affection, emnity for friendship.