The following review written by one of the Software Informer contributors applies to version 3.0
Sudoku Up is a high quality version of the well-known puzzle game that offers hundreds of possibilities to play for a long time. As in any sudoku game, the objective is to complete the empty cells with the numbers from 1 to 9 or letters, in the way that each column, each row, and each of the nine sub-grids contain all of the digits from 1 to 9.
This game is completely customizable and has excellent graphics, winning animations, sound effects, but no music.
You can change almost anything on the board, including grids, numbers, background, color of the scheme, some toolbar options, and even select a character for a player. It includes five difficulty levels.What is more, it offers printing capabilities, so you can print your sudokus to play wherever you go.
The games can be paused and saved, and you can even set a bookmark to remember where you were at the game. It provides statistics for all the games played, containing information about levels of difficulty, and other aspects. You can even enter comments on certain games in a text dialog, where you can insert the information about your player, date, time, and game number.
The game also keeps a detailed record of highscores of different difficulty levels.
It provides two types of hints: the auto pencil marks that show you the possible numbers for each cell, and the highlighter, which marks with a different color all the cells that contain or may contain the number you select. You can use one or both hints at the same time.
Sudoku provides the solution for all the games and can show you all the valid moves you have made.
It would be great if this game gave the possibility of creating your own sudokus.