Sudoku Portable has been discontinued. Similar games include LibreSudoku, which is free and open source. Other options are Sudoku & Variants, Sudoku Challenge, Gauguin and Open Sudoku. There's no shortage of Puzzle Games like Sudoku Portable, with more than 25 alternatives for Android, iPad, the web, iPhone and Windows.
The popular logic puzzle game "Hitori" will be interesting for the players of any age. The aim of the game is to paint out some cells in such way that there are no duplicate numbers in any row or column. Painted cells cannot share an edge.
Sudoku is a logic-based, combinatorial number-placement puzzle game. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9.
