Editing Glossary of chess problems (section)

== Z ==
{{glossary}}

{{term|term= Zepler doubling |content = [[Zepler doubling]] {{anchor|Zepler doubling}} }}
{{defn|defn= A kind of [[#doubling|doubling]] in which one piece moves along a line allowing a second to move onto the same line behind it; the first piece then moves again in the same direction as before. Named after [[Erich Zepler]]. Cf. ''[[#Turton doubling|Turton doubling]]''.}}

{{glossary end}}