Sum to 9 Sudoku (Daily Sudoku League #167)

Sum to 9 Sudoku recently appeared in Dutch Sudoku Championship 2016. I found it quite interesting Sudoku type and decided to create it. This is my first Sudoku of this type and hopefully, I will be creating some more puzzles of this type soon. This puzzle reminds me of the Next to 9 Sudoku and Before 9 Sudoku types.

This Sum to 9 Sudoku, I am posting as my 167th Sudoku in The League of Extraordinary Ladies & Gentlemen. Can you solve this Sudoku puzzle?

Rules of Sum to 9 Sudoku

Classic Sudoku Rules apply. Additionally, clues outside the grid indicate the sum of all direct neighbor (s) of the 9 in the respective row or column.

Sum to 9 Sudoku (Daily Sudoku League #167)

Sum to 9 Sudoku (Daily Sudoku League #167) Solution

Previous Sudoku Touchy Trio Sudoku (Daily Sudoku League #166)

Next Sudoku Ratio Sudoku (Daily Sudoku League #168)

Below is the solution to the Killer Sudoku puzzle, published with the heading Killer Sudoku Puzzle (Fun With Sudoku #234)

Killer Sudoku  (Fun With Sudoku #234) Puzzle Answer