PC Sudoku Samurai- Similar to regular Sudoku, but in boards of 9x9 cells strategically placed: one in the middle and four connected to this one by the cells in each corner. PC Kakuro- For this revolutionary game you will have to fill in the blank cells with numbers the sum of which are the same as the numbers indicated in the black cells. Also included: PC Sudoku Killer, a mixture of kakuro and sudoku, and PC Sudoku Classic, the Original and universally-known game with up to 6 different board sizes.