Selection out of 23 studies composed by

Emil Oscar Frithiof (or Frithjof) Lindgren

(Sweden, 23.2.1897-8.11.1957)

The following information can be found on ChesscomposersBlogspot.

Fritjof Lindgren composed more than 600 problems, most of them three-movers and many excellent miniatures.

He also wrote some books about chess composition: "Schackkuriosa", "Moderna svenska schackproblem" (1936) and "33 Schackminiatyrer" (1937).
He was the father of GM Lindgren, Bo 1927-2011.

He was International Judge of the FIDE for chess compositions since 1956.