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Next to 9 Sudoku (56)
Other names:
Next to Nine Sudoku
Instruction:
Apply Classic Sudoku rules. Additionally, clues outside the grid indicate the digits that sit next to 9 in that row or column. These clues are given in increasing order.
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2015 - Round 1
(13)
WPF Sudoku GP 2015 - Round 7
(110)
Parent puzzle:
Sudoku
Child puzzles:
Sum Next to Nine Sudoku