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.

3rd - 12th Grade Shape

Billiards Geometry

Embrace your inner pool shark and try to make every shot.

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3rd - 12th Grade Number

Chameleon Island

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

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3rd - 12th Grade Logic

Chomp

Can you avoid taking the yucky chocolate piece?

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3rd - 12th Grade Logic

Colored Loops

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

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3rd - 12th Grade Number

Countdown

Be the player to take the last token!

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3rd - 12th Grade Logic

Cup Stacking

Can you find a way to stack every cup?

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3rd - 12th Grade Logic

Four Corners

Can you be the first player to make a square?

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3rd - 12th Grade Shape

Gerrymandering

Can you split up each puzzle so that more than half of the groups are purple groups?

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3rd - 12th Grade Number

Graceful Gourds

Can you gracefully label these pumpkin patches?

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3rd - 12th Grade Number

Ladybugs

Help as many ladybugs as possible land on the leaves.

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3rd - 12th Grade Shape

Lots o’ Plots

Fill your entire garden with plots of carrots.

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3rd - 12th Grade 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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3rd - 12th Grade Logic

Palindrome Swap

Can you make palindromes in the fewest number of swaps?

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3rd - 12th Grade Shape

Poly Puzzles

Can you build a polyhedron using the shapes in each puzzle?

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3rd - 12th Grade 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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3rd - 12th Grade 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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3rd - 12th Grade Logic

Rubik’s Riddles

Can you make the pattern in the puzzle by rotating the cube?

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3rd - 12th Grade Logic

Skyscrapers

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

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3rd - 12th Grade Shape

Smileys

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

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3rd - 12th Grade Logic

Sprigs

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

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3rd - 12th Grade Logic

Star Battle

Can you place the stars on the grid?

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3rd - 12th Grade Number

Stepping Stones

Can you find a way to place the next stepping stone?

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3rd - 12th Grade Logic

Toothpick Squares

Can you make the right number of squares out of toothpicks?

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3rd - 12th Grade Logic

Toothpick Triangles

Can you make the right number of triangles out of toothpicks?

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