Keep your mind sharp in Killer Sudoku, 2020 new brain training puzzle games from Beetles Game Studio. Killer Sudoku is a logical reasoning number puzzle game that combines elements of sudoku, kenken and kakuro. Despite the name, the simpler killer sudoku can be easier to solve than classic sudoku, depending on the sudoku solver 's skill at mental arithmetic; the hardest ones, however, can take hours to solve. With our Sudoku puzzles app, you can not only enjoy killer sudoku games anytime anywhere, but also learn Sudoku techniques from it. How to play: ✓ Each Sudoku has only one true solution. ✓ Place 1 to 9 into each grid cell ✓Every cell is part of a cage, indicated by dotted lines. ✓The sum of all numbers in each cage must match the value in the upper left corner ✓Each cage, row, column or 3x3 region does not have numbers repeated Why choose us: ✓5000+ Killer Sudoku puzzles to exercise your brain, logical reasoning. ✓Complete Sudoku Daily Challenges and collect ...