Killer Sudoku - Sudoku Puzzles

Killer Sudoku is a number puzzle based on the rules of the classic Sudoku , but different from the original, irregularly shaped playing field cells are used here. The sum of numbers in the cells of a small sector must correspond to the value in the upper left corner, and the numbers must not be duplicated not only within the sector, but also in the vertical and horizontal rows of the playing field.

Due to the need to perform mathematical calculations, the game may seem more difficult than the original version, but the benefits for the development of logic from such a test will be many times higher. Having started solving the level, we first recommend paying attention to sectors that contain only two cells and one of them is already filled with a number – guessing the second character will not be a problem.

Features:

• three themes and choice of font size;
• daily challenges and seasonal events;
• undo, hints and draft mode;
• track your progress in statistics;
• automatic saving of progress;
• achievements and global ranking.

Play Classic on any of four difficulty levels, challenge other players in Sudoku Battle mode, collect dozens of achievements, complete daily challenges and earn rewards. Killer Sudoku is an entertaining and useful entertainment for the development of logical thinking.