Is doku.su still active?

Unverified. doku.su has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to doku.su?

Similar projects tracked by PulseGate include Learn Awadhi. Speak Awadhi. St, Mindpop, and PianoFlow Studio.

Who develops doku.su?

doku.su is developed by doku.su.

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doku.su

Name: doku.su
Author: doku.su

doku.suEducation & learning

doku.su presents a playable timeline of Sudoku's evolution from Latin squares and Euler's work through Number Place, Nikoli, and modern world championships. Users can solve representative puzzles from each era while reading the documented history. The site also covers solving techniques and includes resources in multiple languages.

FreeWeb

Visit doku.su

Overview

5 features

In the Education & learning space, doku.su takes a focused approach. It focuses on understanding the real historical development of Sudoku through direct interaction with each major milestone puzzle. It is built as a consumer product for puzzle enthusiasts and history learners. doku.su costs nothing to use. It ships for the web.

Behind doku.su is doku.su, and it first shipped in 2024. Among its 5 catalogued features are interactive history, playable puzzles, and archival sources. The interface is available in English and French.

Summary written by a language model from the project’s public pages.

Interactive history
Playable puzzles
Archival sources
Explainable solving
Multi-language support

Built with & integrations

Framework

WordPress

Hosting

Cloudflare

Runs on

Browser

Detected from

WordPress: /wp-content/ in the HTML
Cloudflare: cf-ray header · cf-cache-status header

Trust & compliance

Verified signals

HTTPSFree tierMulti-language

Indexing history

What PulseGate has recorded for this listing

Indexed29 Jul · 14:38 UTC
A Playable History of Sudoku verified against its public source
Source: PulseGate · Open

Frequently asked questions about doku.su

What is doku.su?: Doku.su focuses on understanding the real historical development of Sudoku through direct interaction with each major milestone puzzle. It is catalogued under Education & learning on PulseGate.
Who is doku.su for?: doku.su is a consumer product built for puzzle enthusiasts and history learners.
Is doku.su free?: Yes — doku.su is free to use.
What platforms does doku.su run on?: doku.su runs on the web.
Is doku.su still active?: Unverified. doku.su has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to doku.su?: Similar projects tracked by PulseGate include Learn Awadhi. Speak Awadhi. St, Mindpop, and PianoFlow Studio.Learn Awadhi. Speak Awadhi. St Mindpop PianoFlow Studio
Who develops doku.su?: doku.su is developed by doku.su.
When did doku.su launch?: doku.su first shipped in 2024.

At a glance

Platforms: Web
Languages: English, French
Built for: puzzle enthusiasts and history learners
Model: B2C
Solves: Understanding the real historical development of Sudoku through direct interaction with each major milestone puzzle.

Live coverage

Identity confidence: High · 89
Indexed: 29 Jul 2026
Lifecycle: Alive
Last seen: 29 Jul 2026

Identity audit (13)

Slug: a-playable-history-of-sudoku-doku-su
Lifecycle state recorded: 29 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 29 Jul 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 5 Aug 2026
Canonical URL: https://doku.su/history-of-sudoku

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