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Chess Spectator Engine

Chrome extension by Jaroslav Svetlik · Productivity · Education

A Chrome extension in Productivity · Education with 55 users, barely installed. Audience over the last 30 days: +29.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
55
Rating
5.0 (1 ratings)
Users, last 30 days
+29
Rating, last 30 days
+5.00 in 30 days
Version
1.7.4 · Stockfish 18 + Fairy-Stockfish
Updated in the store
2026-09-17
Published
2026-08-19
Manifest
V3
Browser access
2 permissions

How it has moved

Users
+29 since 08.10
26-55 · 19 readings
  1. 2026-10-0826
  2. 2026-10-0928
  3. 2026-10-1031
  4. 2026-10-1330
  5. 2026-10-1633
  6. 2026-10-1834
  7. 2026-10-1932
  8. 2026-10-2034
  9. 2026-10-2136
  10. 2026-10-2338
  11. 2026-10-2639
  12. 2026-10-2841
  13. 2026-10-2942
  14. 2026-10-3043
  15. 2026-11-0149
  16. 2026-11-0251
  17. 2026-11-0447
  18. 2026-11-0649
  19. 2026-11-0755
Rating
+5.00 since 08.10
reviewsrating 0.00-5.00 · 19 readings
  1. 2026-10-08reviews0rating0.00
  2. 2026-10-09reviews0rating0.00
  3. 2026-10-10reviews0rating0.00
  4. 2026-10-13reviews0rating0.00
  5. 2026-10-16reviews0rating0.00
  6. 2026-10-18reviews0rating0.00
  7. 2026-10-19reviews0rating0.00
  8. 2026-10-20reviews0rating0.00
  9. 2026-10-21reviews0rating0.00
  10. 2026-10-23reviews0rating0.00
  11. 2026-10-26reviews0rating0.00
  12. 2026-10-28reviews0rating0.00
  13. 2026-10-29reviews0rating0.00
  14. 2026-10-30reviews0rating0.00
  15. 2026-11-01reviews0rating0.00
  16. 2026-11-02reviews0rating0.00
  17. 2026-11-04reviews0rating0.00
  18. 2026-11-06reviews1rating5.00
  19. 2026-11-07reviews1rating5.00
Users
+50 since 01.09
5-55 · 33 readings
2026-09-18: released 1.7.4 · Stockfish 18 + Fairy-Stockfish
  1. 2026-09-015
  2. 2026-09-026
  3. 2026-09-049
  4. 2026-09-0513
  5. 2026-09-0715
  6. 2026-09-0817
  7. 2026-09-1020
  8. 2026-09-1322
  9. 2026-09-1724
  10. 2026-09-2025
  11. 2026-09-2523
  12. 2026-09-2721
  13. 2026-09-2822
  14. 2026-10-0430
  15. 2026-10-0826
  16. 2026-10-0928
  17. 2026-10-1031
  18. 2026-10-1330
  19. 2026-10-1633
  20. 2026-10-1834
  21. 2026-10-1932
  22. 2026-10-2034
  23. 2026-10-2136
  24. 2026-10-2338
  25. 2026-10-2639
  26. 2026-10-2841
  27. 2026-10-2942
  28. 2026-10-3043
  29. 2026-11-0149
  30. 2026-11-0251
  31. 2026-11-0447
  32. 2026-11-0649
  33. 2026-11-0755
Rating
+5.00 since 01.09
reviewsrating 0.00-5.00 · 33 readings
2026-09-18: released 1.7.4 · Stockfish 18 + Fairy-Stockfish
  1. 2026-09-01reviews0rating0.00
  2. 2026-09-02reviews0rating0.00
  3. 2026-09-04reviews0rating0.00
  4. 2026-09-05reviews0rating0.00
  5. 2026-09-07reviews0rating0.00
  6. 2026-09-08reviews0rating0.00
  7. 2026-09-10reviews0rating0.00
  8. 2026-09-13reviews0rating0.00
  9. 2026-09-17reviews0rating0.00
  10. 2026-09-20reviews0rating0.00
  11. 2026-09-25reviews0rating0.00
  12. 2026-09-27reviews0rating0.00
  13. 2026-09-28reviews0rating0.00
  14. 2026-10-04reviews0rating0.00
  15. 2026-10-08reviews0rating0.00
  16. 2026-10-09reviews0rating0.00
  17. 2026-10-10reviews0rating0.00
  18. 2026-10-13reviews0rating0.00
  19. 2026-10-16reviews0rating0.00
  20. 2026-10-18reviews0rating0.00
  21. 2026-10-19reviews0rating0.00
  22. 2026-10-20reviews0rating0.00
  23. 2026-10-21reviews0rating0.00
  24. 2026-10-23reviews0rating0.00
  25. 2026-10-26reviews0rating0.00
  26. 2026-10-28reviews0rating0.00
  27. 2026-10-29reviews0rating0.00
  28. 2026-10-30reviews0rating0.00
  29. 2026-11-01reviews0rating0.00
  30. 2026-11-02reviews0rating0.00
  31. 2026-11-04reviews0rating0.00
  32. 2026-11-06reviews1rating5.00
  33. 2026-11-07reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

The full permission history for this extension

Version history

  1. Version 1.7.4 · Stockfish 18 + Fairy-Stockfish

What changed recently

  1. Package size changed
  2. Released version 1.7.4 · Stockfish 18 + Fairy-Stockfish (was 1.5.0 · Stockfish 18 + Fairy-Stockfish)

The publisher

Jaroslav Svetlik. Listed website: batwp.com.

Like this one

Listings the catalog judges closest in what they say they do.

  1. KnightVision - Chess AI HUD Describes nearly the same job, smaller audience 13 users ★ 5.0
  2. Chee - Live Chess Analysis Describes nearly the same job, smaller audience 967 users ★ 2.8
  3. Chess Eval Extension Describes nearly the same job, smaller audience 1k users ★ 4.7
  4. Free Chess Analyser Describes nearly the same job, smaller audience 735 users ★ 4.5
  5. Chess Analysis Studio Describes nearly the same job, smaller audience 23 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-07. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built