triangular set-square ruler shaped like a right-angle triangle with a hole in the middle Maze
A real, solvable maze shaped like a triangular set-square ruler shaped like a right-angle triangle with a hole in the middle — generated by algorithm, verified to have a single solution, and free to print. Start at the red flag and find your way to the checkered flag.

Free for personal & classroom use. For commercial use — products, KDP books, or resale — get a Commercial License.
- Difficulty
- Hard
- Best for ages
- 8+
- Est. solve time
- 15–25 min
- Grid
- 150×144
- Solution path
- 1,840 cells
- Corridor cells
- 9,204
- Dead ends
- 994
- Solutions
- 1 (verified)
About the triangular set-square ruler shaped like a right-angle triangle with a hole in the middle
A set square, or triangle ruler, is a flat drawing tool shaped like a triangle. Its straight edges and fixed corners help you draw neat straight lines and exact angles, like a perfect right angle. It is a staple of a technical-drawing or geometry set. Wind a path around this set-square maze, a fitting tool for a shapes or math activity.
- A set square helps draw straight lines and exact angles.
- Its corners are fixed angles, like the right angle in a corner.
Solution

How to use this maze
- Start at the red flag and trace a path to the checkered flag — there is one correct route.
- Print on A4 or US Letter at 100% scale; the solution image above is the answer key.
- Free for classroom, homeschool, and personal printing.
All mazes






Make Your Own Maze
Turn any shape, photo, letter or name into a solvable maze — free, no signup.
Open the Maze Maker