Yoogi Puzzle Syndicate

Killer Sudoku for Windows is an application that offers 30 free puzzles of the Japanese game Killer Sudoku or Sum Sudoku. It combines the logic and rules of Kakuro and Sudoku, resulting in more challenging puzzles than the standard ones.

"Cross-Numbers" is a numerical crossword puzzle game that challenges players to fill the grid with numbers based on the sum of their digits. Ideal for puzzle and math enthusiasts alike, this game offers a unique twist on traditional crossword puzzles.