This is a casual puzzle game that combines Sudoku logic, equation reasoning, and symbol-based judgment. Players must select the correct numbers from a pool and fill them into blank spaces so that all equations are valid simultaneously. Some levels feature shared and interdependent variables, forming chain logic that challenges players’ observation and reasoning skills. The game supports both tap and drag operations for smooth and intuitive interaction. Completing equations earns points and coins, while level ratings are based on the number of mistakes, ranging from one to three stars. The game introduces multi-layered equation mechanisms and a future symbol-selection mode. Level maps are divided into three difficulty types—easy, medium, and hard—progressively increasing the challenge and depth of logical reasoning.