Min-Max Sudoku (426)

Instruction:

Apply classic sudoku rules. Each number outside the grid is the sum of the highest and lowest digit in the first three cells in the corresponding row or column.

Reference: WPF (1)

Examples:

WPF Sudoku GP 2018 - Round 6 (63)

WPF Sudoku GP 2019 - Round 7 (130)

WPF Sudoku GP 2020 - Round 3 (150)

Parent puzzle:
Frame Sudoku