Query that selects distinct values by other column

Question

I have a table that looks like this:

id	initials	score
0	ABC	45
1	ABC	46
2	CBA	46

How can I select the values where the initials are distinct and that the score is the highest possible for that initial?

For example the table shown before should return:

id	initials	score
1	ABC	46
2	CBA	46