https://sudonull.com/sudoku-js-generator-bijection-and-factorials
Algorithm for generating unique Sudoku grids in JavaScript: from swaps to factorial bijection. 609 billion variants from one template. Code and math for developers.
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In this project
https://sudonull.com/ontology-documentation-generator-simpleontodoc
Create a static website for ontologies: classes, properties, UML diagrams, search. Integration into CI/CD for domain models. Developer's guide.
https://sudonull.com/android-app-development-without-experience-ai-case-2500-characters
How a Non-Programmer Created a UTM Generator Using GPT. Technical Nuances, AI Pitfalls, and Lifehacks for Google Play. Learn How to Speed Up Mobile App Development.
https://sudonull.com/prng-on-12-timers-php-entropy-7-1-bits
Implementation of an experimental random bytes generator in PHP with 12 timers. Entropy up to 8 bits, code with pauses and switch. Test for tokens and experiments — figure out the nonlinearity.
https://sudonull.com/discriminated-unions-in-c-analysis-and-optimization-for-production
How to Create Efficient Discriminated Unions in C# Without Losing Performance. Comparison of OneOf, DuNet, and Custom Source Generator. Practical Cases.
From other projects
https://ymaho.com/sandwich-generation-2026-the-main-burnout-trend-and-legal-egoism
The sandwich generation care phenomenon has been recognized as the main burnout trend of 2026 in the USA. $48,000 in expenses, 8 days of vacation per year, loss of pension. Checklists for legal egoism. Learn how to delegate care without guilt.
https://ymaho.com/next-generation-car-t-tumor-neurobiology-and-brain-cancer-treatment
Scientists propose considering neurotransmitters for CAR-T cells in glioblastoma. A new approach to brain cancer therapy. Learn more.
https://ymaho.com/care-dan-generation-men-40-in-japan-drivers-of-the-care-market
Analysis of ampule and Style-Arena research: why men 40+ in Japan buy premium care, gender-neutral design, and hair loss products. Insights for beauty brands.
https://ymaho.com/conscious-cosmetics-2026-trend-for-rationality-and-generation-z
89% of Russians care about ecology, but not all are ready to pay for it. The market demands clinical evidence. Find out how zoomers fight greenwashing and why R&D departments become more important than marketing.
https://ymaho.com/ethena-stablecoin-guide-how-usde-generates-yield
Neutral explanation of Ethena's USDe stablecoin mechanism, yield sources, and risks. Learn how synthetic stablecoins work without hype.
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