About Calcudoku #835
Calcudoku #835 was the puzzle for Thursday, October 15, 2026, a medium one: a 5 × 5 grid in 10 cages. Everyone who played Calcudoku that day got the same puzzle, and it stays here to play for 60 days.
New to Calcudoku? The rules, tips and common questions are on the Calcudoku page, and How to Solve Calcudoku Puzzles goes into strategy.
Other days of Calcudoku
- Calcudoku #838, Oct 18
- Calcudoku #837, Oct 17
- Calcudoku #836, Oct 16
- Calcudoku #834, Oct 14
- Calcudoku #833, Oct 13
- Calcudoku #832, Oct 12
- Today’s puzzle, #851
Every day of the last 60 is in the puzzle archive.