Fill in the grid according to the numbers. Use your logic to solve these puzzles!
Put your skills to the test, because this game will challenge you like never before.

What’s New

Version 2.10

• Bug Fixes
- Fixed some achievements.

Ratings and Reviews

4.8 out of 5
524 Ratings

524 Ratings

robimay ,

Love it

I have ADHD and Aspergers, so I really like puzzles that don’t take too long. I got tired of sudoku and ken ken, so I was looking for more puzzle games that are simple and no flashing lights that had to do with numbers and basic elements. I found this one day, and I would play it hour after hour. I would catch myself thinking about how some figures would work with each other. I’d often visualize game setups in my head, like in queens gambit. After about two days playing, I got pretty far, but I was still trying to push myself. That’s when I started playing without the filler (red) squares, and solely played with the dark blue ones. From there, I would play 8x8 games in my head without my phone. It’s a great way to stimulate ones mind. I highly recommend.

she'salady ,


This appeals to me. Different than other games that feel like mindless time-wasters. I’m practicing spatial reasoning. I know this is good for my brain like Omega-3’s. It probably appeals to other people who like Sudoku, like me. I worry about playing games that have too many carnival-type flashing lights and bright colors. I think the ‘activity’ should stimulate your brain, not lights and color. No wonder so many kids exhibit ADHD symptoms in school. I can almost feel new neural pathways growing. I play on my Ipad before falling off to sleep each night.

Angie-HS Math Teacher (and longtime advocate for healthy body/healthy brain)

Cat antics ,

Fun number game!

I've been looking for a nonSodoku number game for brain training and this one is great! There is just enough problem solving to make it a challenge and fairly quick to solve. After level 30 I was tired of the ads and spent $2 to have them removed. Money well spent. This is an excellent game!

App Privacy

The developer, GammaLateral LLC, 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
  • Other Data

Data Linked to You

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

  • Location
  • Identifiers
  • Usage Data
  • Other Data

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.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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