Pocket Puzzles Trilogy: 3 Levels: Easy, Medium and Hard

Trilogy consists of a square grid with the shapes of squares, circles, or triangles already placed in some cells. Try to fill the empty cells with squares, circles, or triangles. Three consecutive shapes i.e. three triangles, is not allowed in any row, column or diagonal. Three consecutive different shapes i.e. a square next to a triangle next to a circle, in any row, column or diagonal is not allowed.