About Killer Sudoku #838
Killer Sudoku #838 was the puzzle for Sunday, October 18, 2026, a medium one: a 9 × 9 grid in 26 cages, with no given digits. Everyone who played Killer Sudoku that day got the same puzzle, and it stays here to play for 60 days.
New to Killer Sudoku? The rules, tips and common questions are on the Killer Sudoku page, and How to Solve Killer Sudoku Puzzles goes into strategy.
Other days of Killer Sudoku
- Killer Sudoku #841, Oct 21
- Killer Sudoku #840, Oct 20
- Killer Sudoku #839, Oct 19
- Killer Sudoku #837, Oct 17
- Killer Sudoku #836, Oct 16
- Killer Sudoku #835, Oct 15
- Today’s puzzle, #851
Every day of the last 60 is in the puzzle archive.