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The Empty Board

The Full Board
June 28, 2004
By William Cobb

If a game starts with the board empty, does that mean the board is full when the game is over? And if so, with what? 

When a thing is empty, there is something missing that it can be filled with. If a glass is empty, for example, you can pour in a liquid until it is full. If a room is empty, it can be filled by moving in people or furniture. But what is missing from the board at the start of a go game?

You might think that what is missing at the start of a game is stones, and on one level that is true. However, we don't fill up the board with stones, so that must not be it. (If you're counting Ing-style, you do fill the board with stones, but that's after the game has been finished; it's not part of the game.) So, filling the go board is about something other than simply placing stones on the board.

What is missing at the start of a game is not stones. The board is empty when neither player controls any of the intersections. Eliminating that condition is what the game is about, and placing stones on the board is simply the means of accomplishing that end.
The process of the game is a negotiation to determine who will control which intersections. When every intersection is definitely controlled, that's when the board is full and the game is over, regardless of how many stones are on it. Go is not a game of stones, it's a game of control.

The Empty Board #39; Past columns are archived at http://www.slateandshell.com/billcobb.asp

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