An html version of allumwandlung.cql

; allumwandlung.cql can be downloaded here.
;; Finds all studies with Allumwandlung, including mixed, in the main line.
;; The order of position keywords inside the match keyword is not significant.
(match
 :pgn heijden.pgn
 :output out.pgn
 (position :promote [Nn])
 (position :promote [Bb])
 (position :promote [Rr])
 (position :promote [Qq])
)