Extreme Difficult Sudoku 2500 icon

Extreme Difficult Sudoku 2500 v1.3.4

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Extreme Difficult Sudoku 2500 screenshot 0 Extreme Difficult Sudoku 2500 screenshot 1 Extreme Difficult Sudoku 2500 screenshot 2 Extreme Difficult Sudoku 2500 screenshot 3 Extreme Difficult Sudoku 2500 screenshot 4 Extreme Difficult Sudoku 2500 screenshot 5 Extreme Difficult Sudoku 2500 screenshot 6 Extreme Difficult Sudoku 2500 screenshot 7 Extreme Difficult Sudoku 2500 screenshot 8

About this app

Developer Description

There are 2500 extreme difficult sudoku puzzles! Free to play! Heat Your Brain!

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!?

What's New

[Ver. 1.3.4]
- Bug fixed
[Ver. 1.3.3]
- Bug fixed

Version Information

Version
1.3.4
Downloads
100K+
Updated on
Sep 3, 2025
Released
Nov 4, 2014
Requires
Android 6.0

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Extreme Difficult Sudoku 2500 users say on Google Play

★★★★★
highpalmtree highpalmtree

There is a good variety for the type of sudokus in the app. The difficulties are nice, haven't encountered a level that is impossible or can't be solved logically. The ads are non-intrusive: banner style, bottom of the screen, under the number pad + short fullscreen one after completing a level. I've played a lot of the Inequality Sudoku and they are a good challenge. The design isn't special, but it's not ugly either. The app performs well, doesn't drain battery, and is easy to use.

6 Jan 12, 2022
★★★★
Myriam Haar Myriam Haar

It'd be an improvement to have a note automatically deleted once we fill the corresponding digit in a square. I.e. if I have 1 in notes across the board and I set a regular 1 in a square, all 1 notes should automatically disappear. Also, checking for mistakes should be feasible at any time during the game, not only once all squares have been filled out. And last, we should have a button to show the mistakes so that we can correct them during the game.

4 Nov 22, 2022
★★★
Charlene Anderson Charlene Anderson

Really liked this. Played through all the games, then reinstalled it to play again. But now every time I open the game, there is a glitch: instead of the game starting, a MAX Debugger page appears which says it works with multiple platforms, and I have to back out of this page to play the game. I don't feel comfortable with this app now, as I don't know if its sharing with those platforms.

6 Feb 28, 2024
★★
Sane One Sane One

Game is annoying... you can't click on a square without changing it, unless you change the number first, which sometimes you don't want to do. Regardless, level of difficulty is not more than "easy". Games are cleared with no thought necessary... Minimum ads is good.

3 Jan 30, 2022
Alexander Antipov Alexander Antipov

Waste of time should rename it guesssuko. no logic to most of the hard suduko you might get 3 or 4 numbers but then you need to make guess after guess after guess etc .

5 Dec 22, 2025

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