Today's genre is a bit more well-known than some of the others in this series, but only because it has an implementation on puzz.link. The name "Tawamurenga" may be easy to confuse with "Tapa", but the genres are quite different. Tawamurenga is a Nikoli Omopa type dating to volume 127.
Rules: Shade several cells in the grid. Cells with numbers cannot be shaded and indicate the number of shaded cells adjacent to it (up to 6). There can not be a horizontal run of 3 or more shaded cells. Each shaded cell must have at least one shaded cell below it (unless it's on the bottom row).
(Example taken from puzz.link. One interesting point that isn't mentioned in this example: the shaded cells, overall, need not be connected.)
