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Extra Regions Sudoku (409)
Instruction:
Apply classic sudoku rules. Each of the shaded regions must also contain each digit from 1-9 exactly once.
Reference:
WPF
(1)
Examples:
WPF Sudoku GP 2014 - Round 1
(112)
WPF Sudoku GP 2014 - Round 3
(114)
WPF Sudoku GP 2014 - Round 5
(116)
WPF Sudoku GP 2014 - Round 6
(117)
WPF Sudoku GP 2015 - Round 5
(108)
WPF Sudoku GP 2015 - Round 6
(109)
WPF Sudoku GP 2016 - Round 6
(103)
WPF Sudoku GP 2018 - Round 3
(60)
WPF Sudoku GP 2019 - Round 2
(125)
WPF Sudoku GP 2019 - Round 6
(129)
WPF Sudoku GP 2020 - Round 3
(150)
WPF Sudoku GP 2021 - Round 3
(159)
WPF Sudoku GP 2021 - Round 4
(160)
WPF Sudoku GP 2022 - Round 4
(176)
WPF Sudoku GP 2022 - Round 5
(177)
Parent puzzle:
Sudoku
Child puzzles:
Big Bands Sudoku
Extended Extra Regions Sudoku
Extra Region Sudoku
Four pairs Sudoku
Windoku
Related puzzles:
Scattered Sudoku