🔥 Hard · Medium 20 × 20 · ID medium-hard-21
Hard Medium Maze No. 21
A hard 20 × 20 maze with exactly one route from Start to Finish, 220 steps long, with 100 dead ends to avoid. Best for school-age children, classrooms and family puzzle time; allow about 3–15 minutes.
The sheet below is exactly what prints on one A4 or Letter page. Corridors are about 6.6 mm wide. Leave scaling at 100% in the print dialog.
Arrow keys or WASD to move, Backspace to step back. On a touch screen, drag along the path, or swipe to slide down a corridor.
Solution (hidden until you want it)
Stuck, or checking a finished maze? Reveal the route, or open the printable solution page to keep the answer sheet separate.
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About this maze
Hard mazes carve a long winding route first, then grow dozens of short dead-end branches right beside it so the wrong turns look as good as the right one. Every hard maze is measured and rejected unless its route is long and crowded with decoys. More to try: easy mazes for kids, hard mazes for adults and maze worksheets, or browse the printable maze page.
Finished the maze?
Try a hard riddle
Mazes and riddles both reward patience and spotting the way through. Here are a few hard riddles with answers.