Dear Players, We are excited to announce that the game has received its latest update! Here are the main contents of this update: 1. Added Undo Feature: You can now enable or disable the undo function in the game options, making your gaming experience more flexible. (Use 'U' Key to undo a step) 2. Added Operator Explanations: Detailed explanations about operators have been added to the early levels of the game, particularly addressing the directional issues with division and subtraction that many players have mentioned. 3. Support for Continuous Movement by Holding Direction Keys: You can now hold down the direction keys to move continuously, making controls more convenient. 4. Fixed Penetration Issue: Fix the penetration issue that could occur during the transfer and swap mechanism animations, improving the stability and experience of the game. 5. Fix division by zero. 6. Adjust level 12 and 15. Thank you for your continuous support and passion.