Sudoku is the classic logic-based, combinatorial number-placement puzzle. If you've been off-planet since 1986 you may not know the objective: fill an N×N grid with digits (1 to N) such that each row, column and block contain only one occurrence of each available digit. (Some squares are pre-filled as clues; place the rest of the digits correctly until the grid is complete).
This electronic version of the game is available on iPhone, iPad & iPod Touch and features:
- 14 modes of play (including jigsaw & killer sudoku modes)
- GameCenter integration, so you can check how buffed your brain-cells are
- Infinite puzzle combinations, so you'll never need to buy another puzzle book
The puzzles are auto generated; so no pesky in-app-purchases to worry about and no need to be on-line. (Nice if you're on holiday and don't want to worry about data roaming charges).