Boolean Return Missing

So I'm trying to check if the new coordinates vs original coordinates are diagonal and 1 line further, and if there is a piece there(getNum()) if it's 2 lines further, so I'm trying to return a boolean value then.

so if it's the first if, it returns true, if it's the 2nd it returns true, then I say else for all other scenario's, and return false there, but my compiler says my method is missing a return statement.

public boolean check(int[] d) {
int x,y;
x = loc[0][0];
y = loc[0][1]; 
int sx = d[0];
int sy = d[1];

[Code] .....

Edit: used a local boolean and returned that after my if's.,