The game is officially over when both players pass consecutively.
There are different scoring rules but the most common are Japanese rules, which we will use here.
In Japanese Rules, you get 1 point for each block of territory you have and 1 point for each of the enemy’s stones you have captured. An area is considered your territory if all of your stones completely surround that area. In your territory, you count your area, not the stones around it.
As we can see above, black’s area is 13 points. White’s area is 22 points.
Remember though, that we also count prisoners (the stones you’ve captured). We can see that black has captured 1 stone and white has captured 8 stones (5 already captured + 3 on the board which are considered dead).
Let’s tally up the score to see who has won.
| Area | Prisoners | Komi | Total |
Black | 13 | 1 | | 14 |
White | 22 | 8 | 6.5 | 36.5 |
White has won by 22.5 points, which is quite a significant victory.