Calcudoku

This software is a puzzle game that closely resembles Killer Sudoku. It requires players to fill in numbers ranging from 1 to 9 in the designated boxes. The game follows the rule that numbers should not be repeated in the same row or column. In addition, numbers within a red group must equate to the number shown on the group, with the type of calculation to be used also shown.

Unlike Killer Sudoku, numbers within a red group can repeat in this game. The challenge of the game lies in employing both logical and numerical deduction to unveil combinations of numbers that fit the rules. When players are stuck, they can hit the hint button to review a correct number.

However, each time a hint is used, scores will be deducted. To maximize points, players need to solve the puzzle as quickly as possible. This software is fun and interactive, making it suitable for users of all ages to develop their logical reasoning and mathematical skills.