Go! Sudoku brings the worldwide sensation of the puzzle known as Sudoku to the PSP. The game comes pre-loaded with 1000 Sudoku puzzles, and players can download new puzzles from the game’s website. This means players no longer need pen and paper to play the game.
The actual gameplay of Sudoku is relatively straightforward and has nothing to do with mathematics; instead, it is entirely concerned with logical reasoning. The numbers one through nine have to be arranged to fit horizontally and vertically into the 9×9 grid of the Sudoku puzzle. However, there is a catch: the numbers one through nine must also be present in the nine smaller 3×3 grids.
The game’s training mode consists of five specific challenges that can be completed with the computer’s assistance and a brief introduction that explains how to play the game. You may also participate in the multiplayer mode by taking turns with one system (cooperatively or competitively) or playing wirelessly with up to four different PSPs simultaneously.