Please use logical thinking instead of guessing! Each puzzle only has one solution.

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Please use logical thinking instead of guessing! Each puzzle only has one solution.

• In pen mode, you can directly import the candidate number by using Shift + number (Alt + number).
• In pencil mode, you can directly import numbers by using Shift + number (Alt + number).
• Key C (or Del, BackSpace): to deselect the number of the lattice or the candidate number.
• Key ESC: to deselect.
• Key P: a toggle switch to change from pencil and pen mode.

Super Killer Sudoku

Super Killer Sudoku is a different type of Sudoku, under the standard base of Sudoku we added conditions, it requires to calculate every cage of results and equal numbers (you can find every calculation method and result on the upper left part of the cage). Also, every cage’s number cannot be an identical one.

Common Killer Sudoku only has one type of calculation rule. In the Super Killer Sudoku, we add subtraction, multiplication and division, this will add skill and joy to the game.

Super Killer Sudoku includes nine and six Sudoku nonets. It also includes Regular and Irregular Sudoku (Jigsaw Sudoku).

Super Killer Sudoku includes the traditional Killer Sudoku.

Rules of Super Killer Sudoku

• Every row forms all lattices with different numbers.
• Every column forms all lattices with different numbers.
• Every block forms all lattices with different numbers.
• Every cage forms all lattices with different numbers. All lattices are accorded to each cage with a defined calculation rule.
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Only if the operation has addition in Killer Sudoku, the addition symbol can be omitted.