While the focus of the article is on crosswords, Will Shortz makes all kinds of puzzles. He has a Sunday Puzzle show he does on NPR which is a word game and he

While the focus of the article is on crosswords, Will Shortz makes all kinds of puzzles. He has a Sunday Puzzle show he does on NPR which is a word game and he is a prolific author of Sodoku puzzles as well as others. So I'd argue that puzzle master is appropriate.