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Math Games, Puzzles, and Brain Teasers

All Games

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!	IsoChomp © 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.	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.
Mazes © When you learn the properties of these puzzles, you'll be aMAZEd at how quickly you can solve them!	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.
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!	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 + ac = de
 / -  - /  -
 d ×  f = ab
 = =  = =  =
 f + cd = ac

What is This? | How to Solve It?

Yesterday's Solution

70 - 14 = 56
 - /  / /  -
42 /  2 = 21
 = =  = =  =
28 +  7 = 35

Total number of plays of all games: 13,468,437

All Games

2048 ©

Bomb Defuser ©

Calcrostic ©

Chess ©

Chomp ©

Dots ©

Floodfill ©

Fruit Salad ©

GeomeTree ©

Hackenbush ©

Induction ©

IsoChomp ©

Knot Colouring ©

Lights ©

Magic Square ©

Mastermind ©

Mazes ©

Nim ©

Skyscrapers ©

Sliding Blocks ©

Sokoban ©

Sudoku ©

Tangram ©

Towers of Hanoi ©

Turtle Walk ©

Unknotting ©

Calcrostic© of the Day

Today's Calcrostic Puzzle

Yesterday's Solution

Calcrostic^© of the Day