A stanza of verse is passed on: each new stanza slides in and is written while the older ones fold back behind bars, so only the last is ever visible.William Blake (d. 1827), “The Tyger” · Public domain
Start a chain
Write the opening stanza: three lines, about five, seven and five syllables. You will get a link to pass on. The next writer sees only your stanza, writes an answer of two lines (seven and seven), and passes on their own link. A chain runs to ten stanzas.