GoDiscussions Tsumego
Keywords: Life & Death
From a 2006 GoDiscussions thread archived here (which also contains solutions and attempts).
See also Go Discussions at the Internet Archive.
Black to live
(by Koosh)
White to kill
(by laurens)
White to kill
(by DrStraw)
Black to play
(by laurens)
Black to play
(by malweth)