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Hashtag Sudoku (611)
Other names:
# Sudoku
Instruction:
Apply classic sudoku rules. Each of the four marked diagonals must also contain each digit from 1-9 exactly once.
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2016 - Round 5
(102)
WPF Sudoku GP 2020 - Round 4
(151)
Parent puzzle:
Multi Diagonal Sudoku