Online Contest Games, Fun math games & puzzles| Cariboutests

Browse the Contest Games, Fun math games & puzzles

2048 Combine tiles in this number-matching to reach the 2048 tile.	Bomb Defuser Minesweeper game where students must apply logic and recognize patterns to survive.
Calcrostic A crossword-style cryptology game that challenges a student's number sense, logic, and computation skills. From grade 3 level to superhuman difficulty.	Chess This classic improves fluid intelligence, requiring planning, pattern-recognition, and concentration.
Chomp Don't eat the poison candy! You need to think ahead and learn patterns of losing positions to be victorious in this two-player strategy game.	Dots Claim the most squares for your colour to win this strategy game.
Floodfill Colour within the lines to fill the map in as few colours as possible with this test of spatial reasoning. Based on the first theorem to be proven by a computer!	Fruit Salad Visual logic game that utilizes a student's visual-spatial reasoning and memory of patterns of blinds.
GeomeTree Interactive geometry-learning modules in a tree of knowledge where each skill builds upon the last. Full access available for purchase in the online shop.	Hackenbush Plan your moves wisely to stick it to your opponent in this strategy game. The best introduction to combinatorial game theory.
Induction Build proofs by induction interactively and step-by-step. Our automatic proof-verification system will check it for you!	iChomp You've mastered Chomp, but can you win four games at the same time?! Try isotropic Chomp in this impartial combinatorial game.
Knot Colouring Did you ever wonder how to identify a mathematical knot from one of its infinitely many drawings? Colouring the drawing is a first step.	Labirentler When you learn the properties of these puzzles, you'll be aMAZEd at how quickly you can solve them!
Lights Who turned on the lights? You will, if you can find patterns and plan your moves strategically.	Magic Square Learn tricks to quickly solve this classic math brainteaser fair and square. Or dive deeper to the underlying mathematical principles.
Mastermind Put your logic skills to the test to break the code in this classic puzzle.	Nim Don't take the last matchstick! Try this ancient mathematical game of strategy which is a good introduction for puzzlers of all ages to the principles shared by all combinatorial games.
Packing Where spatial reasoning meets creativity! Your mission: fit all the different shapes into a larger container.	Skyscrapers Solve the positions of skyscrapers and you'll be building your spatial reasoning and logic in this fun brainteaser.
Sliding Blocks Help the yellow block escape by carefully planning sequences of moves. From super simple to brain-busting challenges.	Sokoban Move the boxes onto the dots in this test of planning, patterns, and spatial reasoning. If the hard puzzles seem impossible, check the solution!
Spider Web Help the spider spin its web by tracing the pattern given, but be careful: each line can only be travelled along once. Try not to get tangled!	Sudoku Place the digits in this classic logic-based, combinatorial puzzle game. From 4 × 4 to 20 × 20!
Tangram You'll need to think creatively to recreate the forms from the coloured shapes in this ancient puzzle enjoyed around the world.	Towers of Hanoi Move the tower of disks to another post to solve this logic-based puzzle.
Turtle Walk Coding game for all ages where students write an algorithm by stacking blocks of code.	Unknotting Don't go tying yourself into knots to unravel this puzzle! A one-of-a-kind interactive introduction to Knot Theory.

Calcrostic^© of the Day

Today's Calcrostic Puzzle

ab /  a = cd
 / -  + -  +
cd - ca =  a
 = =  = =  =
 a + cd = ce

What is This? | How to Solve It?

Yesterday's Solution

292 + 292 = 584
  / /   / /   /
  2 ×   4 =   8
  = =   = =   =
146 -  73 =  73

Total number of plays of all games: 16,571,860

Browse the Contest Games, Fun math games & puzzles

2048

Bomb Defuser

Calcrostic

Chess

Chomp

Dots

Floodfill

Fruit Salad

GeomeTree

Hackenbush

Induction

iChomp

Knot Colouring

Labirentler

Lights

Magic Square

Mastermind

Nim

Packing

Skyscrapers

Sliding Blocks

Sokoban

Spider Web

Sudoku

Tangram

Towers of Hanoi

Turtle Walk

Unknotting

Calcrostic© of the Day

Today's Calcrostic Puzzle

Yesterday's Solution

Calcrostic^© of the Day