PUZZLES

Free, fun, and meaningful math for all

Every JRMF puzzle is hands-on, play-based, and standards-aligned.

We design our activities to have a low floor so that anyone can find a way to engage and a high ceiling so that everyone can find a meaningful challenge.

All of our puzzles come with free festival guides that help you use our activities at home, in the classroom, or during math festivals.

 

For All Ages Logic
3-in-a-Row
3-in-a-Row
Can you be the first player to get 3-in-a-row?
For All Ages Logic
Apple Picking
Apple Picking
After a long day of picking apples, can you eat the last, juiciest apple?
For All Ages Logic
Bridges
Bridges
Can you build a bridge that connects the stars?
For All Ages Number
Catch Up
Catch Up
Can you make the longest line?
For All Ages Shape
Changing Colors
Changing Colors
Can you make two of each shape? But they can't share the same colors!
For All Ages Logic
Chocolate Fix
Chocolate Fix
Can you make the perfect chocolate box for your customers?
For All Ages Shape
Color Triangles
Color Triangles
Create beautiful, colorful triangular patterns.
For All Ages Logic
Crack the Code
Crack the Code
Crack the secret code in as few guesses as you can!
For All Ages Number
Dice Bingo
Dice Bingo
Can you make a winning bingo card?
For All Ages Logic
Domino Dissection
Domino Dissection
Can you tile the board using each domino exactly once?
For All Ages Shape
Doodles
Doodles
Can you trace each doodle without lifting your marker?
For All Ages Logic
Dot Parties
Dot Parties
Can you make parties of connected squares and dots?
For All Ages Number
Dueling Dice
Dueling Dice
Can you make a better die than your partner?
For All Ages Logic
Frogs and Toads
Frogs and Toads
Can you help the frogs and toads get to the other side of the pond?
For All Ages Shape
Hexaflexagons
Hexaflexagons
Learn the mysteries of the simple yet surprising hexaflexagon, and take one home to show your friends!
For All Ages Logic
Juice Jumble
Juice Jumble
Order these jumbled juices to make a beautiful rainbow.
For All Ages Logic
Jumping Julia
Jumping Julia
Can you jump your way from start to finish?
For All Ages Shape
Königsberg
Königsberg
Everything is made up of one, continuous line. Can you figure out what belongs in town?
For All Ages Shape
Map Coloring
Map Coloring
Can you color each map so that no two neighboring states are colored the same color?
For All Ages Logic
Meeple Town
Meeple Town
Can you find all the places where the Meeple can live?
For All Ages Logic
Monster Town
Monster Town
Race your friends to find the patterns in these Halloween-themed SET cards!
For All Ages Logic
Mosaics
Mosaics
Can you make each mosaic?
For All Ages Logic
Panning for Gold
Panning for Gold
Among all the counterfeits there is only one true gold bar. Can you find it?
For All Ages Shape
Pentominoes
Pentominoes
Can you find a way to cover the shapes with pentominoes?
For All Ages Logic
Pool Testing
Pool Testing
Learn how doctors help patients using pool testing through this engaging game.
For All Ages Logic
River Crossings
River Crossings
Help your wolf, goat, and cabbage cross the river.
For All Ages Shape
Tile with Style
Tile with Style
Can you cover the entire square with pattern blocks?
For All Ages Shape
Tippy Toads
Tippy Toads
How many toads can you help sunbathe by balancing them on a lilypad?
For All Ages Logic
Tower of Hanoi
Tower of Hanoi
Can you solve these puzzles based on an ancient legend, golden disks, and the end of the world?
For All Ages Shape
Wolves and Sheep
Wolves and Sheep
Keep your sheep safe from the wolves!