I think the pattern was called Shoji Screen. But, I'm not positive. Really, it is a rail fence variation. Here is a picture of another one I recently made where all the strips are the same width and the blocks are square.
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There are 2 strip sets, light-dark-light and dark-light-dark.
Then the lay out is:
Row 1 - all d-l-d, then alternate vertical- horizontal - vertical etc..
Row 2 - all l-d-l, again alternate but the opposite, horizontal - vertical - horizontal etc..
Etc