Meigo is a drawless territory game for two players: Black and White. It is played on the intersections (points) of an initially empty square grid (board). There is also an off-board location called prison. Each player has access to a sufficient supply of stones of their own color. One of the two sides of each stone is marked.
DEFINITIONS
A chain is a stone along with all stones one can reach from it through a series of steps onto orthogonally adjacent stones of the same color. A liberty of a chain is an empty point orthogonally adjacent to it.
A stone is marked if its marked side is up, and unmarked otherwise.
PLAY
Black plays first, then turns alternate. On your turn, perform exactly one of these actions:
🌟 Remove an enemy stone from the prison.
🌟 Select an empty point. If there is a free path following the lines of the board between that point and an unmarked stone of your color, or it is your first turn of the game, place an unmarked stone of your color on the selected point. Otherwise, place a marked stone of your color on that point. Next, move to the prison all enemy chains without liberties. After this action, the stone you just placed must be part of a chain with at least one liberty.
You cannot place a marked stone and remove a marked stone on the same turn if your opponent just placed a marked stone.
The last player to perform an action wins.
To make the game fair, before the game starts, the first player places a number of black stones in the prison, and then the second player chooses sides. For handicap games, the weaker player takes Black and opens instead by placing on the board a number of unmarked black stones proportional to the skill gap between the players.
NOTES
To my knowledge, this is the naturally finite game that plays most like Go.
https://boardgamegeek.com/thread/3087559/new-game-meigo-minimally-overengineered-naturally