I feel sad that Dr Robert Norman who originated this whole gloriously silly idea did not get to name what became known as the Bosma condition. I've read the biography of his father (linked earlier in this thread), but would appreciate some more biographical details of the son, who died quite young, particularly since I spent some time in Dar Es Salaam myself in the nineties. I don't suppose anyone here knows more about him?
Many of the Bosma condition problems from the 1990s are unsound, and I have found fixes for most. Norman's intended solution doesn't work due to Bosma counterplay by Black (see https://pdb.dieschwalbe.de/P1377131
), but White still wins we think, through rather messy play. The Kristiansen #4 is too simplistic. I really want a version of Norman's which shows both the basic idea and the thematic counterplay, and then has a clean finish. Working on it.
There's also a bunch of new problems which have been composed recently. I may put a little article together on the subject, including all the fixes, which would pay due tribute to Dr Norman - if only I could find out more about him?