AGA Handicaps

AGA Handicaps as used at the 2004 United States Go Congress.

Rating Difference Board Size
                  19x19      13x13                      9x9
0.0 - 0.5         7.5 komi   5.5 komi                   5.5 komi 

0.6 - 1.5         0.5 komi   0.5 komi                   2.5 komi 

1.6 - 2.5         2 stones   5.5 reverse komi           0.5 reverse komi

2.6 - 3.5         3 stones   2 stones                   3.5 reverse

3.6 - 4.5         4 stones   2 stones + 5.5 reverse     6.5 reverse

4.6 - 5.5         5 stones   3 stones                   9.5 reverse

5.6 - 6.5         6 stones   3 stones + 5.5 reverse    12.5 reverse

6.6 - 7.5         7 stones   4 stones                  15.5 reverse

7.6 - 8.5         8 stones   4 stones + 5.5 reverse    18.5 reverse

8.6 +             9 stones   5 stones                  21.5 reverse