What makes this set “hard” for kids?

Size and misdirection: each 20×20 grid holds 400 cells with long false branches that only fail near the end. Expect a noticeably longer solve than the 14×14 medium set.

How do I give a hint without spoiling the maze?

Open the matching solution page at the back of the pack and trace only the first three or four cells of the route, then put it away again.

Are these still printed one maze per page?

Yes — like every set on this site, each maze gets a full page to itself, so the corridors stay generous even at 20×20.

Are these good early-finisher activities for a classroom?

They are built for it: free for classroom use, ink-light, and self-contained. Keep the solution pages at your desk and hand out mazes as students finish other work.

20 Hard Mazes for Kids — Free Printable PDF (20×20 Grids)

Twenty hard mazes for kids, free as a printable PDF. The 20×20 grids pack 400 cells of long false branches, printed one maze per page with the 28pt type tier noted in every footer. Every maze has exactly one solution, drawn on the answer pages at the back. No signup. Pitched at confident solvers around ages nine to twelve — and fair game for adults.

Maze 1 of 20

28pt · 20×20 grid · answer keys included · 1 per page

Download all 20 hard kids’ mazes (free PDF)

What you get

Mazes in set	20
Grid size	20×20 cells (400 cells)
Mazes per printed page	1
Wall weight	Standard solid walls
Answer keys	Included — solution pages 22–41, one per maze
Type tier	28pt standard (see any footer)
Paper	Letter + A4, no scaling needed
Pages in PDF	41 (cover + 20 mazes + 20 solutions)
File size	151 KB

What's in the set

Maze 1 of 20

Maze 2 of 20

Maze 3 of 20

Maze 4 of 20

Maze 5 of 20

Maze 6 of 20

Maze 7 of 20

Maze 8 of 20

Maze 9 of 20

Maze 10 of 20

Maze 11 of 20

Maze 12 of 20

Maze 13 of 20

Maze 14 of 20

Maze 15 of 20

Maze 16 of 20

Maze 17 of 20

Maze 18 of 20

Maze 19 of 20

Maze 20 of 20

Download the full set: 20 Hard Mazes for Kids — Free Printable PDF (20×20 Grids)

28pt · 20×20 grid · answer keys included · 1 per page

Download all 20 hard kids’ mazes (free PDF)

Free PDF · no signup · free for personal, classroom, and care-facility use — not for resale.

Printing tips

Set scale to 100% in the print dialog; a shrunken 20×20 maze gets cramped fast.
Print the mazes alone (pages 2–21) for class sets and the solutions (22–41) just once.
No layout changes needed between Letter and A4 — one file covers both.

FAQ

Frequently asked questions

What makes this set “hard” for kids?: Size and misdirection: each 20×20 grid holds 400 cells with long false branches that only fail near the end. Expect a noticeably longer solve than the 14×14 medium set.
How do I give a hint without spoiling the maze?: Open the matching solution page at the back of the pack and trace only the first three or four cells of the route, then put it away again.
Are these still printed one maze per page?: Yes — like every set on this site, each maze gets a full page to itself, so the corridors stay generous even at 20×20.
Are these good early-finisher activities for a classroom?: They are built for it: free for classroom use, ink-light, and self-contained. Keep the solution pages at your desk and hand out mazes as students finish other work.