Triangular maze
Cells are triangles. Side 7 fits a phone; Make can grow the side length or cut an inner triangle.
Hit-test follows the drawn faces, so a tap lands on the triangle you meant. Same corridor rule as square: you stop at the next fork, not an auto-route across the whole board.
On the homepage, click or use arrows to take a whole corridor — you stop at the next fork. No green trail, no cross-maze auto-route. Print and PNG come from the Make desk for outlines you tuned there.
Related
Square fog and keys stay on room-count boards. Maze vs labyrinth covers why these outlines still count as mazes (they branch).