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Rank Sudoku (418)
Instruction:
Apply classic sudoku rules. A digit 'X' in a circle means that the digit in the cell is the X-th smallest number in the corresponding cage. Digits cannot repeat within a cage.
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2018 - Round 5
(62)
Parent puzzle:
Sudoku
Related puzzles:
Full Rank Sudoku