Home Puzzles puzzles and quizzes Sudoku Hard: December 31, 2022 The daily hard sudoku – part of The Week’s new puzzles section Newsletter sign up Newsletter By The Week Staff published 31 December 2022 The Week StaffSocial Links Navigation Latest London’s best breakfasts and brunches The Week Recommends However you like your eggs in the morning, these memorable restaurants have you covered The Earth is getting darker Under the radar The planet’s reflectivity is out of whack Crossword: October 20, 2025 The Week's daily crossword