Recently, math club has been practicing a game that I have not played before, known as “sudoku.” It is a type of game that fills in numbers that coherently fit into the overall boxes the numbers corresponded. In this CAS experience, I decided to learn to play this game, sudoku. At the start, it is hard to fill in those numbers because there are only three chances that you can make mistakes on plotting in the numbers, so I am very aware and careful when filling each of the numbers in the chart. After playing for several games, I became more familiar with the patterns and numerical tread within the game and began to complete the chart much faster. I enjoy this game very much as it is a complicated but somehow simple game that anyone can play. This game also helps to improve individuals in terms of intellectual components. The game helps me to help me understand my logic-based thinking ability to fill in the numbers with matching trends. Not only that, it improves my way of thinking to solve patterns and tread, to change from priorly attempting to solve it one by one to looking at the overall patterns to analyze which part should be solved first, ultimately improving my efficiency in solving pattern-type challenges and questions. I found my ability to be more logical especially on solving different trends of numbers, which this ability can also be applied to solving other questions not limited to numbers. I had a great time playing it and aim to complete the harder version in the future.