(Tripod Sudoku) is a variation of sudoku, where the borders of regions are not defined. The goal is to fill the grid with digits and divide the grid into region

(Tripod Sudoku) is a variation of sudoku, where the borders of regions are not defined. The goal is to fill the grid with digits and divide the grid into region

The game of Dots-and-Boxes, the popular game in which two players take turns connecting an array of dots to form squares, or boxes has long been considered mere

A comprehensive, beautifully illustrated survey accessible to anyone familiar with high school geometry.

Is Nine-Men Morris, in the hands of perfect players, a win for white or for black - or a draw? Can king, rook, and knight always defeat king and two knights in