[These pages were authored by the late Thoki Yenn,
and were restored here from the
Internet Archive
by Erik Demaine,
with contributions of missing files from various readers
(notably Tommy Stevens, Roberto Morassi, and Boaz Shuval).
If you spot any other bugs like missing images or pages,
please report them.]
Twotone FLIP FLOP
Answer to a question about 2 tone
version of FLIP-FLOP