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How to score a game

This is the last stop. The last thing preventing you from playing a complete game of Go. I am proud of you. It may seem insignificant but you are THIS close to learning possibly the most complex game the human race knows. You are not too good at playing it just yet, but at least you almost know the rules…

The end to the game of Go is not as straightforward as say, Chequers or Chess. The game ends when both players feel there is nothing more to gain. Then the player with more points (captures + surrounded territory + possibly komi) wins.

counting diagram

Empty intersections fully surrounded by stones of your color are worth 1 point each.
Captured stones and stones in your territory that cannot avoid capture are worth 1 point each.
Each player has the right to pass (literally say pass) instead of placing a stone.
If both players pass consecutively, the game is over, and we count the score.

Yes, you got it right. The game can only end when neither player wants to play further. That sounds easy but it is also easy to screw it up. So, before you pass you should make sure that the game is actually over. That means there is no move that could bring any points. Most notably:

Black to play

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After the game ends (two consecutive passes) we first remove all stones that have no way of preventing capture and add them as prisoners (just to save the time of playing out every needless move). This may sound confusing at first but it really isn’t that complicated. See the example below - let’s say both players passed in this position.

counting diagram

Any seasoned go player would know that the lone black stone has no chance of preventing capture. If you were not sure, you simply would not pass. It would make no sense to pass in this position if you thought that black stone might survive because in such a case borders around the respective territories would not be finished yet.

You do not have to capture every last dead stone in your territory. If it cannot live it is counted as a prisoner anyway once we start scoring.
Playing inside your own territory when you do not need will cost you a point (only empty intersections count for points).

Now we only count the empty spaces that are fully surrounded by stones of one color. Then add the prisoners, add komi (usually 6,5 points on 19x19), and that’s it. Luckily for us who play online, the computer counts it for us. :) If you want to find out where you can now play online, check here.

How to better recognize dead stones >

Example of a finished game >

Different rulesets in Go >

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