About Slide Puzzle #840
Slide Puzzle #840 was the puzzle for Tuesday, October 20, 2026, a medium one: a 4 × 4 sliding tile puzzle. Everyone who played Slide Puzzle that day got the same puzzle, and it stays here to play for 60 days.
New to Slide Puzzle? The rules, tips and common questions are on the Slide Puzzle page, and Slide Puzzle Guide: Solve the 15 Puzzle goes into strategy.
Other days of Slide Puzzle
- Slide Puzzle #843, Oct 23
- Slide Puzzle #842, Oct 22
- Slide Puzzle #841, Oct 21
- Slide Puzzle #839, Oct 19
- Slide Puzzle #838, Oct 18
- Slide Puzzle #837, Oct 17
- Today’s puzzle, #851
Every day of the last 60 is in the puzzle archive.