Perimeter Puzzles
In this collection of perimeter puzzles, your challenge is to break the square grid into sections of various perimeters that match the numbers in the grid.
Instructions
Divide the grid into regions so that each region contains exactly one number from the grid. The number in each region must correspond with the perimeter of that region.
For example, if a square in the grid contained the number 4, the square would be in a region all by itself since the square already has a perimeter of 4.
The regions can be rectangles, but they do not have to be rectangles. For example, look at the 8 in the upper right corner of the example puzzle below. The region containing that 8 is L-shaped.
Puzzle Origin
When I originally learned about this logic puzzle, it was under the name “Knossos.” “Knossos” is the name of a palace on Crete and is part of many ancient legends.
When I discovered that this puzzle was really based on determining the perimeters of various shapes, I decided to rename the puzzles “Perimeter Puzzles” in my classroom.
This puzzle was created by Philipp and Valentin Hübner and first made an appearance in 2011.
Printing Options
This packet of Perimeter Puzzles (Knossos Puzzles) contains 10 pages of puzzles in seven different sized square grids. The smaller grids are easier to solve. The larger grids take substantially longer to solve.
You can pick and choose which pages you wish to print for yourself or your students.
- 8 5×5 Puzzles
- 8 6×6 puzzles
- 8 7×7 puzzles
- 4 8×8 puzzles
- 4 9×9 puzzles
- 4 10×10 puzzles
- 2 11×11 puzzles
Free Download of Perimeter Puzzles (Knossos)
These Perimeter Logic Puzzles are available to download both as a PDF and as an editable PPT file.
Click here to Download
Perimeter Puzzles (PDF)
9 downloads – 507.01 KB
PowerPoint
Click here to Download
Perimeter Puzzles (PPT in ZIP)
3 downloads – 3.10 MB
Puzzle Solutions
I intentionally do not make answers to the printable puzzles and math activities I share on my blog available online because I strive to provide learning experiences for my students that are non-google-able. I would like other teachers to be able to use these puzzles in their classrooms as well without the solutions being easily found on the Internet.
However, I do recognize that us teachers are busy people and sometimes need to quickly reference an answer key to see if a student has solved a puzzle correctly or to see if they have interpreted the instructions properly.
If you are a teacher who is using these puzzles in your classroom, please send me an email at sarah@mathequalslove.net with information about what you teach and where you teach. I will be happy to forward an answer key to you.
Not a teacher? Go ahead and send me an email as well. Just let me know what you are using the puzzles for. I am continually in awe of how many people are using these puzzles with scouting groups, with senior adults battling dementia, as fun activities in their workplace, or as a birthday party escape room.
