Tsumego From Games 24
Keywords: Life & Death, Problem
This position comes from a Jubango match played in 1861, Honinbo Shusaku 7 dan (White) vs. Murase Shuho 5 dan (Black). It looks like White missed an opportunity to save the corner. This sacrifice may be useful in view of the whole board position.
This position has become a common one in life-and-death problem collections.