With the improvement of lottery number selection level, many lottery players like to choose the number of two-color ball for double betting. Due to the high risk of large duplex, many lottery players are keen on economical small duplex. The following is a collection of the number selection experiences of several winners of the two-color ball prize for the lottery's reference. It costs less to choose a small duplex, and the coverage of the number has expanded a lot. Such as 6+ 16 small compound, only need 32 yuan, you can guarantee the sixth prize. If you choose more than three red balls, you will gain more. Judging from the betting effect, the winning rate of small compound is higher. Of the 55 lottery tickets that won the first prize, 35 were small bets, accounting for 63%, and the small bets with high hit rates were 7+ 1, 7+2, 6+ 16, 8+ 1 and so on. Small double betting requires a relatively accurate judgment of the prize number. How to determine the number, you can use some small tricks, such as taking 1-2 binary numbers or ternary numbers as an alternative, and consider 1 having the same mantissa. The probability of more than two consecutive numbers in the winning number of two-color ball is about 72%, and the frequency of the same number is about 6 1%. However, the frequency of the same suffix, repeated number and two consecutive numbers appearing at the same time is not very high. Another example is to judge the center of gravity of the interval number where the number mainly appears. It is speculated that there will be multiple prize numbers in this interval, and then the specific number is inferred according to the positive and negative thinking of the special number. Because it is not difficult to select all numbers correctly, it is relatively easy to select the key intervals of numbers. After the candidate numbers are determined, the numbers need to be filtered. For example, some numbers that often "perform on the same stage" should be flexibly combined, and some numbers that "don't wear clothes" should dare to split. In addition, be careful not to choose more than 5 consecutive numbers, the combination of 4 odd numbers or 4 even numbers, the combination of all odd numbers and even numbers, the combination of all small numbers and irregular graphic numbers. It is best to prepare basketball with two hands, or even more hands. You can also summarize the appearance characteristics of red balls and blue balls into some number selection formulas, and directly derive blue balls according to the selected red balls, or judge which blue balls may appear. Finally, don't forget to pay attention to what you think is absolutely impossible.