Solve Murdoku’s weekly murder mystery by placing suspects according to the clues in a Sudoku-style grid.
Penpa+
Penpa+ lets users create and solve Sudoku and other logic puzzles in a browser, with grid editing and sharing tools.
About Penpa+
Penpa+ is a web application for creating and solving Sudoku and other logic puzzles in a browser. Users can set up grids using board types such as Square, Sudoku, Hexagon, Triangle, Pyramid, Cube, Kakuro, several tiling patterns, and Penrose P3, then edit problems and solutions with modes for surfaces, lines, edges, walls, cages, boxes, numbers, Sudoku, shapes, and special elements. Puzzles can be shared through generated URLs, optionally shortened with TinyURL, and saved as PNG, JPEG, or SVG screenshots. Constraints editing is labeled Beta, and resizing or adding/removing rows and columns works only in Square Board Type. Pricing is not stated.
Key features
- Create boards including Square, Sudoku, Hexagon, Triangle, Pyramid, Cube, Kakuro and tiling patterns.
- Edit problems and solutions with modes for lines, edges, walls, cages, boxes and numbers.
- Use Surface, Multicolor, Move, Number, Sudoku, Shape, Special and Composite editing modes.
- Share puzzles via generated URLs, optionally shortened with TinyURL.
- Save screenshots as PNG, JPEG or SVG with title, author and rules.
- Load or export Sudoku data and check solutions against selected constraints.
Best for: Puzzle authors and solvers who want a browser-based tool for building and sharing Sudoku and logic puzzle grids.
Good for
- Supports many board types and tiling patterns for puzzle construction.
- Offers numerous drawing and editing modes for detailed puzzle creation.
- Includes URL sharing and screenshot export options.
Watch out for
- Constraints editing is labeled Beta.
- Resize and add/remove rows or columns work only in Square Board Type.
Penpa+ at a glance
- Category
- Gaming › Browser Puzzle Games
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Penpa+ alternatives
Tools and sites you could use instead, ranked by how closely they match.
Solve a daily crossword logic puzzle by swapping letters horizontally and vertically.
Nonograms.org hosts nonogram logic puzzles in black and white and color, with search and instruction sections.
Queens Game offers unlimited logic puzzles, streak tracking, an archive, and daily challenges.
Create, print, share, and solve crossword puzzles online with Crossword Labs.
Sokoban Online lets players solve classic Sokoban puzzles and build puzzles of their own.
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Penpa+ FAQ
What board types can I create in Penpa+?
Board types include Square, Sudoku, Hexagon, Triangle, Pyramid, Cube, Kakuro, Tetrakis square, Truncated square, Snub square, Cairo pentagonal, Rhombitrihexagonal, Deltoidal trihexagonal, and Penrose P3.
Can I share a puzzle with others?
Yes. Penpa+ can generate a puzzle URL and optionally shorten it with TinyURL.
Are there limitations for resizing or constraints?
Resize and add/remove rows or columns work only in Square Board Type; constraints editing is labeled Beta.
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