Part 9 — source comparisons

81: Pincer envelopment

1986 PDF p.83 · Chet Richards revised PDF p.82 · Open diagram

Full unretouched 1986 page 83 with two outer pincers and three dense interior trunks — 1986 scan, full page. Primary geometry source.

Reading panel.

Later Richards version

Revised pincer drawing with two simplified interior branching systems

The revised PDF and recorded presentation simplify the interior to two major systems and change the outer zigzags. The reading follows the different 1986 scan, retaining its three trunks.

84: Creation of the Blitzkrieg

1986 PDF p.86 · Chet Richards revised PDF p.85 · Open diagram

Full 1986 page 86 showing four traditions converging in Blitzkrieg and five associated characteristics — 1986 scan, full page. Primary source for the four inputs, their shared arrow, destination oval and asterisk list.

Reading panel.

Later Richards geometry and wording

Revised diagram with colored ovals, yellow convergence and a line leading from Blitzkrieg to the characteristics

The later deck uses color and a leader instead of the scan's asterisk. The recording additionally says “Multiple, narrow thrusts”; the 1986 list says “Narrow thrusts.” No “Multiple” was inserted into the 1986 recreation.