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Frame Sudoku (653)

Other names: Outside Sums Sudoku

Instruction:

Apply classic sudoku rules. Numbers outside the grid are equal to the sum of the first 3 digits appearing in the corresponding row or column.

Reference: WPF (1)

Examples:

WPF Sudoku GP 2014 - Round 6 (117)

WPF Sudoku GP 2020 - Round 6 (153)

WPF Sudoku GP 2021 - Round 1 (157)

WPF Sudoku GP 2021 - Round 4 (160)

Parent puzzle:
Outside Sudoku

Child puzzles:
Frame-Diagonal Sudoku
Inner Frame Sum Sudoku
Irregular math sudoku
Min-Max Sudoku
Position Sums Sudoku
Wrong Outside Sum Sudoku