a rough explanation of the whole.

One thing to be noticed in the above is the explicit
statement that the 13 chapters were specially composed for King
Ho Lu. This is supported by the internal evidence of I. ss. 15,
in which it seems clear that some ruler is addressed.
In the bibliographic section of the HAN SHU, there is an
entry which has given rise to much discussion: "The works of Sun
Tzu of Wu in 82 P`IEN (or chapters), with diagrams in 9 CHUAN."
It is evident that this cannot be merely the 13 chapters known to
Ssu-ma Ch`ien, or those we possess today. Chang Shou-chieh
refers to an edition of Sun Tzu's ART OF WAR of which the "13
chapters" formed the first CHUAN, adding that there were two
other CHUAN besides. This has brought forth a theory, that the
bulk of these 82 chapters consisted of other writings of Sun Tzu
-- we should call them apocryphal -- similar to the WEN TA, of
which a specimen dealing with the Nine Situations [15] is
preserved in the T`UNG TIEN, and another in Ho Shin's commentary.
It is suggested that before his interview with Ho Lu, Sun Tzu had
only written the 13 chapters, but afterwards composed a sort of
exegesis in the form of question and answer between himself and
the King. Pi I-hsun, the author of the SUN TZU HSU LU, backs
this up with a quotation from the WU YUEH CH`UN CH`IU: "The King
of Wu summoned Sun Tzu, and asked him questions about the art of
war. Each time he set forth a chapter of his work, the King
could not find words enough to praise him." As he points out, if
the whole work was expounded on the same scale as in the above-
mentioned fragments, the total number of chapters could not fail
to be considerable. Then the numerous other treatises attributed
to Sun Tzu might be included. The fact that the HAN CHIH
mentions no work of Sun Tzu except the 82 P`IEN, whereas the Sui
and T`ang bibliographies give the titles of others in addition to
the "13 chapters," is good proof, Pi I-hsun thinks, that all of
these were contained in the 82 P`IEN. Without pinning our faith
to the accuracy of details supplied by the WU YUEH CH`UN CH`IU,
or admitting the genuineness of any of the treatises cited by Pi
I-hsun, we may see in this theory a probable solution of the
mystery. Between Ssu-ma Ch`ien and Pan Ku there was plenty of
time for a luxuriant crop of forgeries to have grown up under the
magic name of Sun Tzu, and the 82 P`IEN may very well represent a
collected e