Author: dhabecker

Tower NIM

Similar to the basic version of NIM, two players alternate turns picking up tiles.  The objective is still to force the opposing player to pick up the last tile. What is different is the arrangement of the tiles at the beginning of the game.  Tiles are arranged into the shape of a tower, like so… […]


Sprouts is a paper-and-pencil game that can be enjoyed simply by both adults and children. Yet it also can be analyzed for its significant mathematical properties. It was invented by mathematicians John Horton Conway and Michael S. Paterson at Cambridge University in the early 1960s. Setup is even simpler than the popular Dots and Boxes […]

Tsoro Yematatu

Tsoro Yematatu is a two-player that comes from Zimbabwe. Players first drop their three pieces onto the board, and then move those pieces to create a 3 in-a-row which wins the game. What makes this game more fun than traditional Tic-Tac-Toe is that pieces can jump over each other (without capture) which adds an extra dimension in the […]


NIM is a wonderful mathematics strategy game that has been around forever. At its most basic version, two players alternate turns taking objects from one or more piles. For each turn, a player removes at least one object. The winner of the game is the player who picks up the last object. Whenever I need […]

Equilateral Triangle Puzzle (original post)

At the start of the school year, I came across this tweet by @MathEqualsLove… This Week’s Puzzle: Equilateral Triangle. This puzzle is always a favorite! #mtbos #iteachmath #teach180 #puzzlingclassroom — Sarah Carter (@mathequalslove) August 26, 2019 I loved the Equilateral Puzzle, so I finally got around to sharing it with teachers during a […]