The rules of Matchsticks seem very easy, but the puzzles can be much more complicated than you have thought! Your goal in this game is to take away a required number of matches so as to form the required quantity...

Do not look down upon this ancient puzzle game - it may be much more complicated than you have imagined! Your task is to make use of the 4 tiles provided to form the required shapes. At each stage you...

Yet another challenging sudoku puzzle is here - are you confident enough to face the crowd of symbols? In this game you will be given a 9x9 grid, which is evenly divided into 9 squares. Your goal is to put...

Add up to 10 then destroy the balls, and the golden trophy shall be yours! In the game of Math Lines, your target is to remove the marbles by forming pairs that sum up to 10 so as to clear...

Algorithms, software, source code calculate lexicographic order of combinations; compiled program and source code are included. The source code uses two algorithms to find the index or rank for a combination; or find combination for given rank. The first algorithm...

Play with the arrows and see if you are among the brightest league of mathematicians! In this game, your task is to swap two sets of color arrows so that their positions are exchanged. When the game opens, you will...

Inequality, or Futoshiki, is an exciting logic puzzle originated in Japan. Your goal in this game is to fill in all blanks with numbers as quickly as possible. In the first level of the game, you will be given a...

Seize your precious time and don't let it slip away in the hourglasses! Your goal in this game is to measure 15 and 24 minutes by using a 7-minute and an 11-minute hourglass. You will be given the two hourglasses...

Solving equations may look like a piece of cake to the math masters, but is it still easy when you need to spot the needle in the haystack? Come and check if you are observant enough in this interesting puzzle...

Be rest assured this is not a clash of titans; it's a fine combination of mathematics and physics. In this game, your goal is to balance the lever by putting all of the given objects onto it. At the start...

Utilize your precise organization skills to conquer the Tower of Hanoi! Your goal in this game is to move all rings from pile A to pile C and stack them according to the original order. When the game begins, you...

Continue your journey in our sudoku series and complete the grid with numbered jigsaw pieces! In this game you will be given a 9x9 grid, which is evenly divided into 9 squares. Your goal in the game is to put...

Play the numeric trick against the computer! In this game, your task is to choose at least 3 numbers among 1 to 9 which add up to 15. You and the computer will take turns in the game, and each...

Do not overlook the mathematical tricks behind the seemingly simple equations in this game - you may need to spend more time than you think to complete them! In Quick Math, your goal is to fill in the missing arithmetic...

Longing for a refreshing mathematical challenge? Take the Geometry Quiz now and see how quickly you can get the answers! Your goal in this game is to calculate and solve all given questions as quickly as possible. In each question...