Every Puzzle Page Os and Xs answer published during 2021 — 166 solved grids in total. Each date below opens the completed board for that day.
This is one year of the full Os and Xs archive, which runs from 2018-01-03 to 2026-08-31. You can also browse all 20 Puzzle Page games.
2021 Os and Xs Answers
How Puzzle Page Os and Xs Works
Fill the grid with Os and Xs so that neither symbol appears three times in a row, and each row and column has an equal count of both.
Tips for Puzzle Page Os and Xs
- 1
Any pair of identical symbols forces the opposite symbol at both ends.
- 2
A gap between two identical symbols must take the opposite one.
- 3
Once a row has all of one symbol placed, the rest of the row is decided.
- 4
Work rows and columns alternately — a completed row usually settles two or three columns.
- 5
No three of the same symbol may sit in a row, so any pair with a gap beside it forces the opposite symbol into that gap.
- 6
Each row and column holds equal numbers of both symbols. Once one symbol reaches its quota in a line, every remaining cell in that line is the other.
Puzzle Page Os and Xs Facts
| Puzzle type | Os and Xs |
|---|---|
| Year | 2021 |
| Puzzles this year | 166 |
| Full archive | 2,317 puzzles |
Puzzle Page Os and Xs Questions
Can three of the same symbol ever touch?
Are rows always balanced?
How many Os and Xs answers are in this archive?
How is this different from noughts and crosses?
What is the main rule to remember?
Why does one date show more than one puzzle of this type?
3 Tips for Puzzle Page
The board is the whole puzzle
Every answer is built from what the level actually shows you and nothing else. Counting that first rules out most of what comes to mind, which is quicker than trying words and being rejected.
Place the longest answer first
Long answers use up the awkward letters and leave a set that spells the short ones out for you. Starting long is consistently faster than sweeping for three-letter words.
Neighbouring levels are the best hint
Difficulty climbs gradually rather than in jumps, so the levels either side of a hard one reuse its patterns. They are more useful than any hint the game sells you.
How to Solve a Puzzle Page Level
The order that clears a board fastest.
Read what you are given
Letters, tiles or clues — count them before you start. That constraint is the strongest filter you have.
Anchor with the answers you are sure of
Each confirmed answer narrows the ones it touches, so the easy entries are worth the first minute.
Work outwards
Follow the chain from what you have placed rather than jumping around the board.
Verified Answers, Not Guesses
How we verify these answers
Every answer on this page is read from the game's own puzzle data rather than retyped from another site, and is checked against what the board actually provides — so nothing listed can use a letter the level does not give you. The counts shown are computed from the stored data, not typed in by hand.
Reviewed by Priya Raghunathan, Word Games Editor at Puzzle Solved. The full checking routine is in the methodology, and the standards every page is held to are in the editorial policy.
Last checked — Aug 26, 2026