Last week's post, Down With The Titanic, was partly inspired by another post on this website, Chess Problems Lost With The Titanic,
http://www.chessproblem.net/viewtopic.php?f=25&t=548. In that post, mention was made of a problem by Bo Lindgren. I found the following article, http://www.timkrabbe.minkman.org/babson%20task.htm, and it indicates that the Lindgren problem of 1972, which I haven't found, might have been plagiarized from a Pierre Drumare problem of 1966. That would be the following problem:
Pierre Drumare Themes 64 1966 #4
In Chess Problems: Tasks and Records by Jeremy Morse, it says the following, "In 1965, Pierre Drumare published a position with Black to move, which showed the task, provided Black promoted his pawn, but there was no White key, and no answer to other first moves by Black. The following year, he published a problem with three matching promotions to Q, R and B, but after Black promoted to N, White could make any promotion. In 1972, Bo Lindgren published a five-mover with three WBs and with the WN promotion delayed until the final move, whereas the other three White promotions followed immediately, on Black's."
Last week's problem by Herland was called a 'forerunner of the Cyclic Babson'. In the August 2003 issue of the German problem magazine Die Schwalbe, the problem below, a mate in four by Peter Hoffmann appeared.
Peter Hoffmann Die Schwalbe August 2003 #4
"Hoffmann had previously published a number of conventional directmate Babsons, but this one is significant as it is the first cyclic Babson: rather than black promotions being matched by white, they are related in cyclic form: black promoting to a queen means white must promote to a bishop, black promoting to a bishop means white must promote to a rook, black promoting to a rook means white must promote to a knight, and black promoting to a knight means white must promote to a queen."
8 points for sending me a complete variation to both problems, at email@example.com , by next Wednesday.