Stress Matrix Dectet/Stress Checkerboard Stanza -
10 lines, 10 syllables per line: a-B-a | B-c-B-c | D-c-D
where lowercase are iambic pentameter and uppercase are trochaic pentameter – they alternate the whole way, giving a perfect ‘checkerboard’ of stressed and unstressed syllables, ten lines down x ten syllables across (=100 syllables completely evenly distributed and the rhyme scheme also utterly even/symmetrical mathematically).

Our cotton sheet is flapping on the line;
breezes pull and finally blow through it,
a square of white: the flagged surrender sign.
Every evening, though you try to do it
I cannot really say our love life thrives.
Simultaneously we cry, ‘Oh screw it!’
Through this near miss no nuptial bliss derives.
Wind is hurried, blowing without caring
through tangled, twisted fabric of our lives,
love and dirty laundry without sparing.