Margo is an abstract strategy game in which balls stack upwards to surround enemy groups and capture them. It's like Go but with some interesting 3D twists: groups can build over enemy groups to escape, and pinned balls survive capture to remain active as zombies... and zombies are dangerous!
This book gives a comprehensive introduction to the game, including its rules, tactics and known strategies, and presents several annotated games and puzzles by way of example.