Play is designed for a desktop browser with a mouse and keyboard. Touch is basic: tap or drag to select cells, and use the on-screen pad.
[Play on sudokupad.app instead]
Start a fresh board? Your current progress is kept in your playthroughs list.
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present).
Whispers of Collapse
By starchacer
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present).