Draft
How three coins build six lines
Eighteen coin faces become six lines from the bottom, with moving lines marked.
Original draft for local preview. Human editorial review is still pending; this article is not published in production.
Each line uses three coin faces. The six lines are stored from the bottom up, matching the classical order used for the King Wen number.
Values 6 and 9 are moving lines. The changed hexagram is derived only after the base structure is fixed.
This page shows structure, not a classical poem or temple verdict. The result is entertainment for reflection.
Each of three virtual coins contributes 2 or 3, so a line sum is 6, 7, 8, or 9. Six is moving yin, seven is still yang, eight is still yin, and nine is moving yang. A moving line flips when constructing the changed hexagram; a still line keeps its original state. Count line positions from the bottom. A top-to-bottom screen arrangement should never reverse the saved order of the six sums.
Try checking the saved sums 6, 7, 8, 9, 7, 8. Positions one and four move. The base bits from bottom to top are 010110, and the changed bits are 110010, using 0 for yin and 1 for yang. This is a check of the transformation, not a prediction. With no moving lines the two structures match; with several moving lines all corresponding positions flip. Different interpretive schools select texts differently, so the product does not invent one authoritative moving line.