Bill Spight wrote:I am relying upon memory here, but, as I recall, in one of the many discussions on rec.games.go on this topic, someone cited a U. S. case early in the 20th century specifically about chess problems. As i recall the judge ruled that a chess problem itself (but not the commentary) could not be copyrighted because it could occur in a real game, and real game positions were not copyrightable.
My impression is that in Japan and Korea, and probably China, pro games are copyrightable, as are problems.
Yes, in the US that's the case. However, it's the actual organization of a set of problems (and, obviously, textual commentary, if any) that is copyrightable. In other words, a database of problems or games is copyrightable, though the individual games on their own are not.