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Antimatter

Working

Mahjong solitaire that matches antonyms

What it's for

  • play antonym-matching mahjong puzzles
  • try a short word-solitaire round
Runs in the browser154 checksGames and play
Open AntimatterChecked linguabase.orgLast change recorded

We have checked Antimatter 154 times since 15 Sept 2026, and it answered every time. Its visible text has not changed since we started watching.

What it does

Antimatter is a browser puzzle that combines a mahjong solitaire mechanic with antonym matching. The page lists 20 puzzles and says it is based on 23,791 antonym pairs across 102,754 words, built using Linguabase.

More in Games and play

Each answered its most recent check.

Looking for something else?

What stands out

  • No account required
  • Free

What we checked

  • App accessible

    The last check reached a working page.

  • Page rendered

    The last browser pass found a page that rendered.

  • Screenshot kept

    We captured a picture of the page.

  • Looked at by an agent

    An agent reviewed it. That is not a person.

Looked
5

5 browsers

Opened
37

37 browsers

Checks
154

154 checks

Watching
0

Nobody yet

Browsers on this site, not verified people.

Screenshot of Antimatter
Screenshot from our last capture

Evidence

Each bar is one request we made
Checks
154
Working · last 40
100%
Median response
1245ms
Watching since
15 Sept 2026

Of the last 40 checks, 40 answered (100%); the latest was on . Median response 1245 ms. Watching since .

Browser render check

Checked 1 month ago in a real browser

1 page rendered

How the browser check works

Activity

Watching since
Last content change
None seen yet
Unchanged for
47 days
Certificate expires
in 33 days

How we track changes

What people say

No reviews yet.

Embed this status

For a README. It updates on every check.

Antimatter — still works
[![Antimatter — still works](https://itstillworks.app/api/badge/antimatter)](https://itstillworks.app/verify/antimatter)