Last updated on February 15th, 2026 at 02:50 pm
Extreme Difficult Sudoku 2500 – Board Game Review
Extreme Difficult Sudoku 2500 is a Board/Puzzle/Education game from Ohte, Inc., first launched in 9th December 2014.
It’s rated 4+ and currently has 101+ ratings on the App Store.
What Makes Extreme Difficult Sudoku 2500 Stand Out
For those of you who aren't satisfied with regular sudoku, we've put together a seriously perplexing puzzle collection!
There are five categories to choose from—Normal, Cross, Jigsaw, Cross Jigsaw and Inequality—each with 500 puzzles each, for a total of 2500 puzzles!
It's totally free to play!
If you solve every puzzle, you may be able to become a genius!?
This Board game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Extreme Difficult Sudoku 2500 is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 10th January 2023
Recent improvements include:
Bug fixed
Download & Availability
Extreme Difficult Sudoku 2500 is available through the official App Store for iOS devices.
Get Extreme Difficult Sudoku 2500 on App Store
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
Its really heat our brain, hahaha. Love it.
We like this sudoku app but puzzle No.493 is unsolvable. According to the app Ive spent over 5 hours trying to solve No.493 and we are quite confident it is simply improperly created. Ill continue to use this app and will happily change our star rating if the puzzle is ever fixed.
This used to work great. Now we cant even enter our selection because nothing shows on the screen, not on the right not on the bottom. Has someone tested this. Sorry rhetorical question.
The Inequality game does not follow one of each number per column or row or grid. If it were fixed, this would be 5 stars. Otherwise unplayable.
This app is so completely amazing! Could not ask for a better free sudoku app!!! We're so surprised something this amazing is free! This sudoku holds so many different levels and styles for sudoku! As mentioned; this BEAUTIFUL app is A-M-A-Z-we-N-G-!-!-!-!-.
User feedback from Apple App Store
App Details
- Version: 1.3.2
- Size: 33.35 MB
- iOS: 12.0 or later
- Languages: EN, JA, ZH
- Content Advisory:
- Developer: Ohte, Inc.
Last updated: 10th January 2023 | Genre: Board, Puzzle | Developer: Ohte, Inc.