Discovery
25 Days of Christmas Sudoku
A Sudoku Advent calendar for December 2026. Solve one moderate puzzle each day from December 1 to Christmas Day, then use your answers to reveal another part of a festive drawing.
Available nowThe Discovery series / First book: December 2026
Discovery
Sudoku with something more to discover. Use your solutions to follow drawing clues and watch a picture take shape, one puzzle at a time.
Part of The Sudoku Learner's Library / 1 title / 1 available
Publication details will be added as they become available.