Gear combination vs Sudoku Combinations

Select a quest, and a rotating gear will appear in the upper left. Connect the gears on the right to the rotating gear to clear the quest. You can place gears freely in any position. Multiple quests are available, and you can play them in any order. Cleared quests can also be replayed as many times as you like. In this game, clockwise rotation is represented by positive numbers, and counterclockwise rotation is represented by negative numbers.

The best helper app for Killer Sudoku, and for calculating Sudoku combinations. List all combinations for a range of cells and sums. Filter result. Sort result. Limit result. Choose parity. Include and exclude digits. Keep multiple calculations. We also welcome any feedback to make this the best Sudoku Calculator!