Novice, Expert & Genius Hints

Hint 1 of 3:

WARNING : THE FOLLOWING HINTS ARE STRAIGHT HINTS, ONLY CONTINUE READING IF
YOU ARE REALLY STUCK.

Hint 2 of 3:

I found it was easier to keep symbols in the same rows. Example : With roman
numerals, keep all the 500's in one row, all the 1000's in one row and all
the 50's in another row.

Hint 3 of 3:

Leaving space between pairs allows for groupings of threes, fours and even
fives.