Stacks Game

Be the first player to move all pieces across and off the board to win this 2-player strategy game. Decide between defensive and offensive strategy as you choose to move …

Square Permutations

Do square permutations always exist? Work through solutions and scenarios through this exploration activity. Submitted by: James Tanton Time Required: 30 minutes You’ll Need: paper and pencil Download Activity

Sliding Around

Robert A. Hearn’s Martin Gardner-inspired, coin-sliding puzzle takes sliding-coin puzzles to the next level. Instead of solving the puzzle in the fewest number of moves, these puzzles are similar to …

Math Puzzle Booklets

The Julia Robinson Mathematics Festival has gathered 44 pages of fun, mathematical puzzles. Solve squareable and trapezoidal numbers, staircase numbers, word and non-word puzzles, logic puzzles, and more with these …

Coin Puzzles

Play online or download popular coin puzzles at The Puzzle Playground. Slide, remove, or rearrange coins to form new patterns to solve these creative challenges. Source: Puzzles.com Time Required: 15 …

NumCode

Use revealed segments of digits to fill in each grid’s cells made of of numbers 1 through 9. With their Sudoku-like style, these unique visual challenges are quite addictive! Submitted …

Games Kit

A collection of 12 classic games that were part of the Portuguese Championship of Mathematical games (2004-2013). Each of the selected games strengthens focus, visualization, forward thinking, and problem solving …