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Parity Sudoku (286)
Other names:
Same parity Sudoku
Instruction:
Apply classic sudoku rules. Digits along any grey line have the same parity (all odd or all even).
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2017 - Round 8
(9)
WPF Sudoku GP 2020 - Round 4
(151)
Parent puzzle:
All Odd/Even Sudoku
Related puzzles:
Parity circles Sudoku