Overview

Dogdoku: Sudoku Puzzle Games is a free puzzle game by YIKE TECHNOLOGY LIMITED that turns a familiar logic idea into a search for hidden puppies. It was released on Google Play on June 10, 2026, and the version checked for this article is 1.0.15, updated on September 3, 2026. It is listed in the Puzzle category, is rated for Everyone, and requires Android 9 or later. It is also listed as available on Windows through Google Play Games. On Google Play it holds a rating of 4.5 stars from 210 reviews and shows a downloads badge of 10K+. The listing states that it contains ads, and it does not list any in-app purchases. A download size is not shown on the web version of the Play Store page.

The theme is the first thing that stands out. Instead of numbers in a plain grid, the player works with bright colored areas and a cheerful dog character. The presentation is light and friendly, which makes the game feel welcoming to people who do not usually play logic puzzles. Underneath that friendly surface, however, the puzzles ask for real attention, and a careless guess can quickly lead to a contradiction.

Gameplay

Dogdoku does not ask the player to fill a grid with the numbers 1 to 9, as a classic Sudoku does. It uses Sudoku-style thinking in a different form: the player must work out where hidden puppies are placed on a grid. Each puzzle gives the player a grid divided into colored regions, and the task is to find exactly one puppy in each region.

Three rules control every placement. First, each colored region contains exactly one puppy. Second, each row and each column can contain only one puppy. Third, puppies cannot sit next to each other, not even diagonally. Those three rules are the whole game, and every puzzle can be solved by applying them in turn.

In practice, play is a process of elimination. The player looks at a region, checks which cells are still possible, and marks the cells that cannot hold a puppy. A tap can place a puppy or mark a cell with an X, and the screenshots on the Play Store show levels with those marks already in use. When a region has only one cell left that does not break a row, column, or distance rule, that cell must hold the puppy. Placing it then removes other cells in the same row, column, and region from consideration, which often opens up the next step.

Early levels use small grids, such as the 4 by 4 grid shown for Level 1, so a new player can learn the rules without feeling lost. Later levels use larger grids with more regions, more colors, and more puppies to place, and the level numbers shown in the screenshots run from Level 1 through Level 30 and beyond.

Features

The central feature is the deduction system itself. The color rule, the row and column rule, and the no-touching rule work together, so a player must keep all three in mind at once. That gives the game more depth than a simple hidden-object search, because a puppy that looks possible in one region may be ruled out by a puppy already placed in the same row.

The game also offers a steady supply of levels with rising difficulty. The early puzzles teach the rules, and the later ones demand longer chains of reasoning, where one placement depends on several eliminations made earlier. According to the Play Store description, players can unlock different animal skins, collect special markers, and change the visual style of their puzzles, which adds a small sense of progress beyond simply finishing the next level.

The visual design is another clear feature. The grids are colorful, the puppy artwork is simple and friendly, and the layout keeps the level number, the puppy count, and the rules visible at the top of the screen.

Tips for new players

Start with the smallest colored regions. A region with only two or three cells is much easier to narrow down than a large region, and it often gives the first certain placement. Once a puppy is placed, mark the cells around it, including the diagonal neighbors, so they are not mistaken for possible spots later.

Check rows and columns before choosing a cell. A cell may look free inside its region, but if its row or column already holds a puppy, it cannot be used. Working back and forth between regions, rows, and columns is usually more reliable than focusing on one part of the grid for too long.

Pay close attention to color boundaries. One reviewer noted that some colors can look close to each other, so it is worth checking the shape of a region, not just its shade, before deciding where its puppy must go.

Pros and cons

Pros:

Free to install, with a clear and simple set of three rules.
A friendly dog theme that makes logic puzzles feel less formal.
Levels that grow from small grids to larger, more demanding puzzles.
Rated for Everyone, with a calm style and no number-based Sudoku knowledge needed.
Rated 4.5 stars from 210 reviews on Google Play at the time of writing.

Cons:

Contains ads, as stated on the Play Store listing.
Some colored regions can be hard to tell apart, which a reviewer also mentioned.
The download size is not shown on the web Play Store page, so players cannot check it before installing from that page.
With 10K+ downloads and 210 reviews, it is still a smaller title than many long-running puzzle games.

FAQ

Is Dogdoku free to play?
Yes. The Google Play listing shows an Install button with no price, and the game is listed as free. It does contain ads, according to the listing, and no in-app purchases are listed on the page.

Is this a classic Sudoku game with numbers 1 to 9?
No. Dogdoku borrows the row, column, and region ideas from Sudoku, but it does not use numbers. The player places one hidden puppy in each colored region, with only one puppy in each row and column, and no two puppies touching, even diagonally.

What do I need to play it, and how large is it?
The listing requires Android 9 or later, and it is also listed for Windows through Google Play Games. The version checked here is 1.0.15, updated on September 3, 2026. The web Play Store page does not show a download size, so that figure cannot be stated from the listing.