1) Chess variant 
Djambi (also described as `Machiavelli`s chessboard`) is a board game and a chess variant for four players, invented by Jean Anesto in 1975. ==Rules== ===Material=== The game is played on a 9×9 board whose central square (called `the maze`) is marked with a different color or a sign. Each player has 9 pieces: ===Objective=== The objective of...