#12 Shakashaka Collection

Shade a right triangle in some empty cells, each of which occupies exactly half the cell it’s in. Each unshaded area must be rectangular in shape. A number in a cell represents how many of the (up to) four cells orthogonally adjacent to the clue contain triangles

"Supertask" Solve on Puzz.Link https://tinyurl.com/yhtspma2

"Keyed Out" Solve on Puzz.Link https://tinyurl.com/bdhafzu7

"Coalesce" Solve on Puzz.Link https://tinyurl.com/yhxbcj9f