Daily Animal Logic Puzzle
Play Zoodoku
Solve today's Zoodoku by placing exactly one animal in every row, every column, and every colored region — without letting any two animals touch.
A new daily puzzle set is waiting for you.
What Is Zoodoku?
Zoodoku is an animal logic puzzle game built around a simple challenge: find the correct place for one animal in every row, column, and colored region of the board. The rules are easy to learn, but the solution usually comes from combining several clues at once.
There are no calculations to make and no words to guess. The board rules help you eliminate positions that cannot contain an animal.
Why Is It Called Zoodoku? The name combines the playful animal theme of a zoo with the logic-puzzle feeling associated with “doku” games. Despite the name, Zoodoku is not traditional number Sudoku.
A New Zoodoku Every Day
Play Zoodoku features a fresh five-level daily set designed to give you a satisfying logic challenge every day. Today's set is generated from the date, so every player receives the same five boards and can return tomorrow for something new.
Each Daily Zoodoku set has its own:
- puzzle identifier;
- board layouts;
- region patterns;
- 5×5, 6×6, and 7×7 board sizes;
- and a unique checked solution for every level.
Continue Through Five Daily Levels The homepage gives you five puzzles to solve in order. Completing one level unlocks the next. Your current board, solve time, move count, and completed levels are saved in this browser so you can continue the set later.
Understanding Zoodoku Difficulty Different Zoodoku boards require different amounts of deduction. Board size, region shape, and the number of immediately forced moves all affect how difficult a puzzle feels.
Easy Zoodoku. Easy puzzles are ideal for learning the rules. They tend to use smaller boards, clearer forced moves, fewer competing possibilities, and shorter solving chains. Medium Zoodoku. Medium puzzles require more interaction between rows, columns, and regions. You may need to make several eliminations before a forced position appears.
Hard Zoodoku. Hard puzzles contain fewer immediately obvious moves. You need to track more candidates, combine several constraints, use the no-touch rule carefully, and look further ahead. Expert Zoodoku. Expert puzzles ask experienced players to follow several layers of deduction before one animal position becomes certain.
More Ways to Play Zoodoku Today's five-level Daily set is the only playable mode on the homepage right now.
Zoodoku Unlimited. Unlimited play is planned as a way to generate another board whenever you are ready for a new challenge. Zoodoku Daily Archive. The planned archive will make it possible to return to previous Daily Zoodoku sets. Zoodoku Solver. A dedicated solver is also planned for checking a difficult board or finding a useful next move.
How to Play Zoodoku
Every Zoodoku puzzle follows four core rules. Start by eliminating impossible squares, then combine the row, column, region, and no-touch constraints to narrow the remaining positions.
1. Place One Animal in Every Row Each horizontal row must contain exactly one animal. Once you know where the animal belongs in a row, every other square in that row can be ruled out. Likewise, if several squares have already been eliminated and only one possible square remains, that square must contain the animal.
2. Place One Animal in Every Column Each vertical column must also contain exactly one animal. Placing an animal therefore affects both its entire row and its entire column. Any other square in the same column becomes unavailable.
3. Place One Animal in Every Colored Region The board is divided into differently shaped colored regions. Each region must contain exactly one animal, regardless of how large or irregular the region is. Small regions are often a good place to begin because they contain fewer possible positions.
4. Animals Cannot Touch Two animals cannot occupy neighboring squares. That includes diagonal neighbors. When you place an animal, the squares directly above, below, left, right, and diagonally around it can all be eliminated. This rule is often the key to unlocking harder puzzles.
How to Use the Zoodoku Board
A good logic puzzle should be easy to control so you can concentrate on solving it. Play Zoodoku lets you mark impossible squares and place animals directly on the board.
Mark an Impossible Square If logic tells you an animal cannot go in a square, mark that square with an X. These marks help you keep track of eliminated possibilities as the puzzle becomes more complex.
Place an Animal When you are confident that a square must contain the animal, place it there. If placed animals break a row, column, region, or no-touch rule, the board highlights the conflict so you can reconsider the move.
Undo a Move Changed your mind? Use Undo to reverse your most recent action without restarting the puzzle. Restart the Puzzle Use Restart whenever you want to clear the current board and solve that level again from the beginning.
Use a Hint If you are stuck, Hint reveals a valid next animal so you can start reasoning from a confirmed position. Try solving as much of the board as possible before using it. Play on Mobile Play Zoodoku is designed for both desktop and mobile. Tap the board to mark squares and place animals without needing a keyboard or precise mouse controls. That means you can solve the Daily Zoodoku wherever you are.
Zoodoku Tips and Solving Strategies
Learning the rules takes only a minute. Learning how to combine them is where Zoodoku becomes interesting. The following techniques can help you solve puzzles more systematically and reduce uncertain moves.
Start With the Smallest Regions
Look for colored regions with only a few squares. A two-square or three-square region gives you far fewer possible animal positions than a large region.
If one or more of those squares can already be eliminated because of another row, column, or nearby animal, the region may become forced immediately.
Eliminate the Entire Row and Column
Whenever you place an animal, mark the remaining squares in its row and column as impossible.
This is one of the easiest ways to reduce the board quickly. A single confirmed animal can eliminate many candidates at once.
Don't Forget the Diagonals
The no-touch rule includes diagonal squares. This is easy to overlook, especially when two possible animal positions sit in different rows and columns.
When you place an animal, check all eight neighboring squares. A diagonal elimination can sometimes solve an entire region.
Look for Rows With Only One Possible Square
You do not always need to solve a colored region first. Sometimes a row or column has been reduced to one remaining legal square.
If every other position is impossible, the final square must contain the animal. The same principle works for rows, columns, and regions.
Combine Multiple Rules
Harder Zoodoku puzzles rarely fall to one rule alone.
- another animal already occupies its row;
- its column is already taken;
- another position must satisfy its colored region;
- or it touches a confirmed animal.
Strong solving usually comes from combining two or more of these constraints.
Stuck on a Zoodoku Puzzle? Everyone gets stuck sometimes. Before using a hint, run through this quick checklist. When no move seems obvious, revisit:
- the smallest unsolved region;
- rows with few open squares;
- columns with few open squares;
- squares next to confirmed animals.
Often one earlier move has created a new forced position elsewhere on the board.
Still Stuck? Use the Hint button to reveal a valid next animal, then inspect the affected row, column, region, and neighboring squares before continuing.
How Is Zoodoku Different From Other Logic Puzzles?
Zoodoku shares some ideas with other grid-based logic games, but the way those rules interact gives it a distinct solving style.
Zoodoku vs Sudoku Despite the similar name, Zoodoku is not traditional Sudoku. Sudoku asks you to place numbers while satisfying number-based row, column, and box constraints. Zoodoku contains no number placement. Instead, you decide where animals belong using rows, columns, colored regions, and adjacency. If you like Sudoku because every move should be logically justified, you may still enjoy Zoodoku even though the mechanics are different.
Zoodoku vs Queens Zoodoku and Queens-style logic puzzles share a very similar core idea. Both revolve around placing one piece in each row, column, and region while preventing pieces from touching. The biggest difference is presentation: Play Zoodoku uses an animal theme and presents the puzzle as a five-level Daily set. If you already know how to play Queens, you'll probably understand the basic Zoodoku rules almost immediately.
A Simple Puzzle With Deep Logic But those rules interact in enough ways to create puzzles that range from quick daily challenges to much harder logic problems. One deduction leads to another. Then another. And eventually the entire puzzle clicks into place.
Quick Enough for a Daily Habit A Daily Zoodoku set can fit into a short break, commute, or morning routine. Open the puzzle, work through today's levels, and come back tomorrow. Deep Enough to Keep Improving As the boards grow, you'll start seeing patterns faster. Small regions become easier to read, forced rows stand out sooner, and diagonal conflicts become obvious. The better you get, the more satisfying larger boards become.
Frequently Asked Questions About Zoodoku
Is Play Zoodoku free?
Yes. You can play the complete five-level Daily Zoodoku set for free.
Is there a new Zoodoku every day?
Yes. A new five-level Daily Zoodoku set is generated each day.
Can I play more than one Zoodoku per day?
Yes. Today's Daily set contains five levels that unlock in order.
Can I play Zoodoku on my phone?
Yes. Play Zoodoku works on phones, tablets, and desktop browsers, and the board adapts to smaller screens.
Does a Zoodoku puzzle have only one solution? Every generated Play Zoodoku board is checked for one valid arrangement before it is shown.
Do I need an account to play? No account is required to start or complete the Daily Zoodoku set.
Can I use hints? Yes. Hints are available when you need help. Try solving as much as possible first, then use a hint to reveal a valid next animal.
About Play Zoodoku
Play Zoodoku is an independent website built for people who enjoy clean, satisfying logic puzzles. We create our own playable puzzle experience, including algorithmically generated Daily Zoodoku boards. Play Zoodoku is an independent puzzle website and is not affiliated with any mobile game publisher.
Ready to Play Zoodoku? Start with today's first level and work your way through the complete Daily set.
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