|Source: Ha'Problemai [The Problemist], Oct. 1973, p. 14|
We have previously mentioned Yeshayahu "Shaiy" Blaustein in this blog, including one of his problems. This time, a problem which -- as the photo above notes -- will 'undoubtebly live on as one of the classics of the 20th century'. I am not so sure about that, but it is a very nice problem.
The Hebrew text in the obituary adds more biographical material, much of which can be found in the link given here, and mentioning he was also an architect and an artist (as well as a talented amateur photographer).