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SudoLoom
Play Free Sudoku Online from Easy to Expert
Play free Sudoku online from Easy to Expert in a calm Nordic Warm Paper UI. Features 100% unique solutions, Smart Hints that teach human logic (Naked Pairs, Pointing Pairs, X-Wing), Global Daily Sudoku with Wordle-style sharing, and A4 PDF puzzle sheets.
I built SudoLoom (https://sudoloom.com) because I love playing Sudoku every morning, but I was tired of existing Sudoku sites that drain battery with flashing banner ads, laggy trackers, and "hints" that just blindly fill in a number without telling you WHY.
Here is what makes SudoLoom different:
🧠 1. Human-Logic Smart Hints (Sudoku Learning)
Instead of just revealing the answer, SudoLoom’s solver analyzes the board using real human techniques—from Naked & Hidden Singles to Naked/Hidden Pairs, Pointing Pairs, X-Wing, and XY-Wing—highlighting the exact related cells and explaining the step-by-step deduction.
Every board is verified by a fast Bitmask + MRV backtracking engine to guarantee a single unique solution, and graded by the actual human techniques required to solve it (not just by counting empty cells).
🌍 3. Global Daily Sudoku + Wordle-Style Emoji Sharing
Every day features a deterministic global puzzle (generated from the YYYY-MM-DD seed) so everyone in the world plays the exact same board—with zero backend or account sign-up needed.
🖨️ 4. Built-in A4 Printable PDF Generator (/printable-sudoku)
Prefer solving with a real pencil on paper? Generate crisp A4 PDF sheets with 1, 2, or 4 puzzles per page and optional answer keys in one click.
🎨 5. Calm "Nordic Warm Paper" UI & Multi-Language
Designed for zero eye strain on both mobile (fits within 100dvh with no accidental scrolling) and desktop (full keyboard support: Arrow keys / WASD, 1–9, N for Notes, Ctrl+Z for Undo). Automatically supports English, Vietnamese, Japanese, Korean, and Spanish.
It's 100% free and requires no login. I'd love for you to try today's puzzle and let me know what you think! 🧩✨
About SudoLoom on Product Hunt
“Play Free Sudoku Online from Easy to Expert”
SudoLoom was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #158 on the daily leaderboard. Play free Sudoku online from Easy to Expert in a calm Nordic Warm Paper UI. Features 100% unique solutions, Smart Hints that teach human logic (Naked Pairs, Pointing Pairs, X-Wing), Global Daily Sudoku with Wordle-style sharing, and A4 PDF puzzle sheets.
On the analytics side, SudoLoom competes within Web App, Puzzle Games and Games — topics that collectively have 228k followers on Product Hunt. The dashboard above tracks how SudoLoom performed against the three products that launched closest to it on the same day.
Who hunted SudoLoom?
SudoLoom was hunted by Phạm Vũ Nhật Quang . A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of SudoLoom including community comment highlights and product details, visit the product overview.
Phạm Vũ Nhật Quang 
Hi Product Hunt! 👋
I built SudoLoom (https://sudoloom.com) because I love playing Sudoku every morning, but I was tired of existing Sudoku sites that drain battery with flashing banner ads, laggy trackers, and "hints" that just blindly fill in a number without telling you WHY.
Here is what makes SudoLoom different:
🧠 1. Human-Logic Smart Hints (Sudoku Learning)
Instead of just revealing the answer, SudoLoom’s solver analyzes the board using real human techniques—from Naked & Hidden Singles to Naked/Hidden Pairs, Pointing Pairs, X-Wing, and XY-Wing—highlighting the exact related cells and explaining the step-by-step deduction.
✅ 2. 100% Unique Solutions & True Difficulty Grading
Every board is verified by a fast Bitmask + MRV backtracking engine to guarantee a single unique solution, and graded by the actual human techniques required to solve it (not just by counting empty cells).
🌍 3. Global Daily Sudoku + Wordle-Style Emoji Sharing
Every day features a deterministic global puzzle (generated from the YYYY-MM-DD seed) so everyone in the world plays the exact same board—with zero backend or account sign-up needed.
🖨️ 4. Built-in A4 Printable PDF Generator (/printable-sudoku)
Prefer solving with a real pencil on paper? Generate crisp A4 PDF sheets with 1, 2, or 4 puzzles per page and optional answer keys in one click.
🎨 5. Calm "Nordic Warm Paper" UI & Multi-Language
Designed for zero eye strain on both mobile (fits within 100dvh with no accidental scrolling) and desktop (full keyboard support: Arrow keys / WASD, 1–9, N for Notes, Ctrl+Z for Undo). Automatically supports English, Vietnamese, Japanese, Korean, and Spanish.
It's 100% free and requires no login. I'd love for you to try today's puzzle and let me know what you think! 🧩✨