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Big Bands Sudoku (948)
Instruction:
Apply classic sudoku rules. Each of the grey twisty bands must contain one of the given 7-digit numbers. The numbers can be entered in either of two directions.
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2020 - Round 1
(148)
WPF Sudoku GP 2023 - Round 3
(191)
Parent puzzle:
Extra Regions Sudoku