PUZZLES

Math puzzles for all ages and skill levels.

JRMF puzzles are unique compared to other math games you’ll find. We design problems with low-floors so everyone can get started by the simple act of trying something and with high-ceilings that lead to challenging mathematics.

Play them in person with friends, or virtually at home.

K and Up Logic

Apple Picking

After a long day of picking apples, can you eat the last, juiciest apple?

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K and Up Number

Catch Up

Can you make the longest line?

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4th and Up Number

Chameleon Island

Help all the chameleons on the island change into the same color.

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K and Up Logic

Chocolate Fix

Can you make the perfect chocolate box for your customers?

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K and Up Shape

Color Triangles

Create beautiful, colorful triangular patterns.

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Colored Loops

Create colorful loops so that you can always find your way back to the beginning of the path.

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4th and Up Number

Countdown

Be the player to take the last token!

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K and Up Logic

Crack the Code

Crack the secret code in as few guesses as you can!

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4th and Up Logic

Cup Stacking

Can you find a way to stack every cup?

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K and Up Number

Dice Bingo

Can you make a winning bingo card?

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K and Up Logic

Domino Dissection

Can you tile the board using each domino exactly once?

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K and Up Shape

Doodles

Can you trace each doodle without lifting your marker?

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K and Up Logic

Frogs and Toads

Can you help the frogs and toads get to the other side of the pond?

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4th and Up Shape

Gerrymandering

Learn how gerrymandering can be used to control elections by practicing gerrymandering yourself!

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4th and Up Number

Graceful Gourds

Can you gracefully label these pumpkin patches?

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K and Up Shape

Hexaflexagons

Learn the mysteries of the simple yet surprising hexaflexagon, and take one home to show your friends!

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K and Up Logic

Juice Jumble

Order these jumbled juices to make a beautiful rainbow.

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K and Up Logic

Jumping Julia

Can you jump your way from start to finish?

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K and Up Shape

Königsberg

Everything is made up of one, continuous line. Can you figure out what belongs in town?

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4th and Up Number

Ladybugs

Help as many ladybugs as possible land on the leaves.

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4th and Up Shape

Lots o’ Plots

Fill your entire garden with plots of carrots.

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4th and Up Number

Magic Flowers

Can you arrange 5 numbers into a Magic Flower in which every group of three numbers in a line adds up to the same magic number?

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K and Up Shape

Map Coloring

Can you color each map so that no two neighboring states are colored the same color?

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K and Up Logic

Monster Town

Race your friends to find the patterns in these Halloween-themed SET cards!

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K and Up Logic

Panning for Gold

Among all the counterfeits there is only one true gold bar. Can you find it?

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K and Up Shape

Pentominoes

Can you find a way to cover the shapes with pentominoes?

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K and Up Logic

Pool Testing

Learn how doctors help patients using pool testing through this engaging game.

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4th and Up Number

Prime Cubes

Armed with only your understanding of prime numbers, play against your friends to find the best way to fill in our colorful cube.

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K and Up Logic

River Crossings

Help your wolf, goat, and cabbage cross the river.

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4th and Up Logic

Rook’s Move

Race your friends to get the rook to the end of the chessboard. Can you find a way to win every time?

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4th and Up Logic

Skyscrapers

Help the city planner build up the city with new skyscrapers.

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4th and Up Shape

Smileys

Smiling is contagious! Can you turn every frown upside down?

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4th and Up Logic

Sprigs

Take turns drawing curves to connect dots. Can you be the one to draw the last curve?

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4th and Up Logic

Star Battle

Can you place the stars on the grid?

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K and Up Shape

Tile with Style

Can you cover the entire square with pattern blocks?

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K and Up Shape

Tippy Toads

How many toads can you help sunbathe by balancing them on a lilypad?

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K and Up Logic

Tower of Hanoi

Can you solve these puzzles based on an ancient legend, golden disks, and the end of the world?

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K and Up Shape

Wolves and Sheep

Keep your sheep safe from the wolves!

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