2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76489This document is a brief summary of progress that has been made on the problems posed in the document "Twenty Open Problems in Enumeration of Matchings" (also available from this server as math.CO/9801060). NOTE: This article has now been superseded by math.CO/9904150.4 pagesCombinatoricstext