Samurai Sudoku 4+

5 Small Merged Into 1 Big

Stanley Lam

Designed for iPad

    • 4.6 • 249 Ratings
    • Free
    • Offers In-App Purchases



Samurai Sudoku puzzle contains five overlapping sudoku grids. The basic sudoku rules apply to each 9 x 9 grid.

Basic Rule: Fill numbers in the board such that every row, column and region contains one occurrence of each number.

**** Samurai Sudoku features ****

# Content
- 5 difficulty levels
- Various types of Sudokus, including Gattai (3 overlapping sudoku grids), Butterfly (4 overlapping sudoku grids), etc.

# Features
- "Hint" auto fills the board with memo that has no direct conflicts with other numbers
- Highlight same numbers as you select a number on board
- Autosave the process of unfinished levels
- Record best completion time for each level

# Challenge
- Game Center Achievements
- Try to complete as many levels as possible

If you have encountered any problem, please send an email to

What’s New

Version 2.15.8

- Adjusted the colors of highlighted cells

Ratings and Reviews

4.6 out of 5
249 Ratings

249 Ratings

Bitterrot Valley ,

Great app

I love this app and have been using it for years on my iPad! Love the variety and the various levels. The ONLY issue that I have, is with playing it on my iPhone. I attempted to send an email, but it just wouldn’t go through.
On the iPhone, I find I am having to tap certain numbers multiple times before it will appear in the box, if even then. I did try to see if it needed to be updated. Nope, wasn’t that. Then tried turning the phone completely off, then turning it back on and that didn’t do it either. Is there possibly a glitch in programming? I really don’t want to delete it from the phone, but needless to say, this IS a frustrating problem!

pammiekay ,

Really hard but great games

So far I’ve played two types I’ve never played before and there is a learning curve to them and they are very challenging. Being a seasoned player I’ve chosen moderate to start. One thing that could definitely be improved are the rules. They are vague and until you play the game it takes a while to understand it. But at least they show you your errors. 😁

Erin_37 ,

Nice variation on Sudoku

Once I found the auto fill for notes and the double tap to convert a single remaining note to an entry, it got a lot easier to focus on the strategy. The anti-diagonal version is a really nice twist.

Update 2 years later...

The sheer variety of board types that have been added since I first discovered this app is lovely. It gives the brain a different mental challenge to figure out the nuances of a new game shape or rules in addition to the usual Sudoku puzzle.

This is the only Sudoku app that tempts me back from my preferred Killer Sudoku.

App Privacy

The developer, Stanley Lam, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

    Challenge friends and check leaderboards and achievements.

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