Normal sudoku rules apply. The product of the digits along a hollow orange line is equal to 300. Every set of three sequential digits along a teal modular line contains digits with three different remainders when divided by 3. (I.e. one digit from {1,4,7}, one from {2,5,8}, and one from {3,6,9}). Additionally, the total sum of the modular lines is equal to 300.