Hi, I could not understand both of the diagonal parts

for the first diagonal check, start at point 3,0 middle column, bottom row and look left 1 (x-1) and up 1 (y+1), then look left 2 (x-2) and up 2 (y+2), then left 3 and up 3. Then change y to 1 and start at 3,1 and do the same checks. Then change y to 2 and start at 3,2 and do the same checks. Note that after moving up to y = 2, the 4th check is at 0,5, so the inner for loop is done and the outer loop is iterated, making the new starting position 4,0. Then it would start at 4,1, and 4,2 and repeats until the final starting position is 6,2. The second diagonal check works similarly, except that the first starting point is 3,3 and it checks diagonally left and down. The starting y coordinate is incremented until the top of the board, then x is incremented and y goes back to 3 and starts incrementing again. This repeats until the final starting position is 6,5 (the top right corner).