Word squares continue to constitute one of the grand research topics of recreational linguistics. The search for a universally acceptable 10-square is still one of the Holy Grails of word play. Like any substantial research topic, the idea of "word squares" suggests a further plethora of interesting related topics by modifying and relaxing its definition.
Word Ways: Vol. 36
, Article 5.
Available at: http://digitalcommons.butler.edu/wordways/vol36/iss1/5