It is concluded that the goal of advanced mine clearance practice is three stages: speed-skill-speed. The first stage: speed (person160s or more). At this stage, it is hard training. As long as it takes time, it can reach 160 seconds, and it takes time to understand. Understand some formulas, such as "between the lines 1 60s", "2 12, 1 and the oblique upper corners of 2 are all thunder", "122 1, and both 2s are thunder" and "21. But there must be more guesses than guesses. Besides, where you can guess once, don't guess twice. Two consecutive 50% equals 25%, for example: 1 2 ports 1 ports 1. Obviously, there is a thunder in the two squares on the left and a thunder in the two squares on the right. If you guess the two squares on the left first, you are 50% right. You're right, 50%. After you are right, you can push out the one on the left. You don't need to guess the second stage: skills (the applicable population is 100- 160 seconds). When you get to this level, you won't have to worry about time when you play again. Focus on using the least number of clicks. As long as you can make one click less, you will definitely not do more. For example, there are several beside a red flag. Double-click which 1 is best. Besides, sometimes you will spend more time marking the red flag. For example, right-click the red flag first, then double-click the next 1, and only a box pops up. Why not put a mark on the box? Just click and remember, don't worry about time. At first you may slow down (slower, more time than before), but gradually you will get faster (click speed is still not fast, but time is less than before). The third stage: speed (suitable for people is 100-80 seconds) Speed up the click speed based on the second stage and see how many times you can click every minute. To speed up to 120 rpm, we should pay attention to every detail, such as the resolution of the display, the sensitivity of the mouse, the sitting posture, the method of holding the mouse, the mood at that time, and the rhythm of playing music on the computer.