#46 - Position Sums Sudoku

 Position Sums Sudoku

Standard 6x6 Sudoku rules.
On each row, the leftmost two digits are A and B. An unshaded number in the left margin is the sum A+B of the corresponding row. A shaded number in the left margin is the sum of the Ath and Bth digits in the corresponding row starting from the left.
The same applies to columns starting from the top.

Solve on Penpa: https://git.io/JgAG2