Developer EvilDooinz (also the creator of the PSP WOL or Wake-on-LAN homebrew) has announced that SudokuZen Release 2 is now available for download. As its name implies, this homebrew is actually a PSP version of the highly popular Sudoku number puzzle, originally created by Howard Garns back in 1979.

Here are the SudokuZen's rules (quoting the readme):

* Fill the grid so that the numbers 1 through 9 appear in each row.
* Fill the grid so that the numbers 1 through 9 appear in each column.
* Fill the grid so that the numbers 1 through 9 appear in each 3x3 box.
* A complete Sudoku puzzle contains the numbers 1 through 9 in every row, column, and 3x3 box.

SudokuZen Release 2 will carry a couple of minor updates and new themes. Details for controls and other important information regarding the game are available in the file bundle's readme file.