Classic Grid-Based Logic Puzzles
Puzzena
Deduction, problem solving, and brain teasers — without guessing.
Explore more than 9,000 puzzles across Binary Puzzle, Tents & Trees, Shikaku, and Nonogram. Every puzzle is pre-verified to have one unique solution solvable through pure logical deduction. No guesswork, no accounts, fully playable offline.
- 9,000+ Puzzles
- No Guessing Required
- 4 Puzzle Types
- 100% Offline
- Light · Dark · Sepia
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9,000+
Verified Logic Puzzles
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4
Distinct Puzzle Types
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100%
Logical Deduction (No Guessing)
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0
Accounts or Login Needed
Four Distinct Puzzle Types
Different styles of logical thinking, in one focused collection
Switch between distinct deductive challenges. Choose the grid size and difficulty that suit your pace, or return each day for a new daily challenge.
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Binary Puzzle / Binairo
Fill the grid with two values while keeping every row and column balanced. Avoid forbidden sequences of three and ensure completed lines remain unique. Built around pattern elimination.
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Tents & Trees
Turn a campsite into a spatial challenge. Place exactly one tent next to each tree, satisfy row/column count clues, and ensure tents never touch one another — even diagonally.
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Shikaku
Divide the board into rectangles. Every rectangle must contain exactly one numbered clue, with its area equaling that number. Rewards visual reasoning and overlap elimination.
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Nonogram (Picross)
Use numerical clues along rows and columns to deduce which cells to fill and which to leave empty. Every solved puzzle reveals a charming pixel art image as your deduction reward.
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True Deduction, No Guessing
Every puzzle is pre-verified to have one unique solution solvable strictly through logic. Difficulty reflects the reasoning depth required, not merely grid size.
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Solvers’ Quality of Life
Mistake checker without full spoilers, smart hints, unlimited undo/redo, auto-save/resume, zoom/pan on large grids, and Light, Dark & Sepia themes.
Screenshots
Clean Design. Pure Logic.
In the box
Built for Logical Solving
- 9,000+ logic puzzles across 4 classic types
- Unique solutions pre-verified before release
- 100% solvable through deduction — no guessing required
- Multiple grid sizes and difficulty levels
- Daily puzzles, streaks, and detailed solving statistics
- Smart hints and mistake checking without spoiling solutions
- Unlimited undo, redo, auto-save, and resume unfinished puzzles
- Zoom/pan controls with Light, Dark, and Sepia themes
FAQ
Questions, answered
Are all puzzles solvable without guessing?
Yes. Every single puzzle in Puzzena is pre-verified to have exactly one unique solution and to be solvable using pure deductive logic. Difficulty is based on the reasoning required to solve the puzzle, not simply on how large the grid is.
What puzzle types are included in Puzzena?
Puzzena includes 4 classic grid puzzle types: Binary Puzzle / Binairo (0/1 parity and pattern deduction), Tents & Trees (campsite spatial reasoning), Shikaku (rectangle division based on area numbers), and Nonogram (picture logic / Picross / Griddlers / Hanjie).
Can I play Puzzena offline without an account?
Absolutely. All 9,000+ puzzles are pre-generated and packed into the app. Core gameplay works 100% offline without an internet connection, account creation, or login.
What tools are available if I make a mistake or get stuck?
Puzzena features smart hints when you get stuck, mistake checking without spoiling the full solution, unlimited undo/redo, auto-save & resume, zoom/pan on large grids, and customizable Light, Dark, and Sepia themes.
Choose a puzzle. Follow the logic. Find the solution.
Whether you prefer binary logic, campsite puzzles, rectangle divisions, or pixel art deduction, Puzzena gives you 9,000+ ways to practice deduction in one focused collection.