Denksport Varia XXL puzzle book

Denksport is the leading brand for puzzle books in the Netherlands and Flanders, offering a wide range of products from crosswords and soduku to variety (Varia) books like the XXL edition shown. The brand was originally created in the 1930s by Keesing, a Dutch publishing company founded by Isaac Keesing Jr. in 1911.

Manufacturing takes place primarily in the Netherlands, where the puzzles are designed, curated, and printed. Today, Denksport is part of Keesing Media Group, which has transformed into an international publishing powerhouse. The ultimate ownership lies with the Swedish private equity firm BC Partners, which acquired a majority stake in Keesing Media Group in 2021, though the operational headquarters remain in Amsterdam.