Through the comprehensive use of ten number selection techniques to screen the "two-color ball" blue ball, it is found that the blue ball does have rules to follow. These ten kinds of number selection techniques are all original by the author and commonly used by everyone, but the author expounds how to use these methods accurately with detailed data according to the lottery numbers of the "two-color ball" calendar. This method does not need complicated operation, and it can be as simple and fast as looking up a dictionary with high accuracy. In particular, the number of blue balls played by Happy Sunday for the second time, due to its particularity, the author did not make statistics. First, size classification. Among the 16 numbers of the basketball ball, 1-8 is a small number and 9- 16 is a large number. According to the author's analysis, the characteristics of lottery numbers over the years are: 1, with a large number of up to 7 consecutive periods; Trumpet up to 7 consecutive issues; 2. The large size appears at most 4 times after a single interval, and the small size appears 7 times after a single interval; 3. Size ... Repeat five consecutive jumps and then reverse. For example, 03074-03085 lottery blue balls are: 0 1 (small),1(large), 02 (small), 06 (small),1(large). The interval of the front tuba is four times, which has reached the limit of this characteristic. It is judged that the current issue will continue to be large, and the 13 issued in 04086 is indeed large. The blue numbers of 4080 ~ 4085 are 16 (large), 06 (small), 15 (large), 06 (small), 14 (large) and 0 1 (small) respectively. What is the blue size of 4086? The size of the blue number has increased fivefold in a period of time. The blue number of 4086 should repeat the size of the blue number of 4085, and it is judged as small. It turns out that the blue number of 4086 is 0 1, which is really small. Second, parity classification. The number 16 has exactly the same parity. 1, and the odd number is 6 consecutive periods at most; Even up to 7 consecutive issues; 2. Odd numbers should be separated at most three times and then many times; Even numbers are every six times at most, and then many times; 3. Parity check ... Reverse repeat after three consecutive hops. For example, the blue numbers of 040 10-040 15 lottery tickets are 15 (odd number), 03 (odd number), 08 (even number), 13 (odd number) and 12 (even number) respectively. The previous even Qiqi has jumped three times and has reached the limit of this characteristic. It is judged that odd numbers will be generated continuously in this period, resulting in odd number 05 in 040 16 period. Third, interval classification. 16 numbers are divided into 0 1-04, 05-08, 09- 12, 13- 16. 1, each interval has at most 3 consecutive periods; 2. The interval 1 and the interval 4 are up to 6 times after a single exit; Interval 2 and interval 3 are separated by 12 at most once, and then repeated; Three, one, two, three, an interval ... after continuous single hop 15, the inversion is repeated. Four, divided by three remainder classification. 0 except 3 includes 3, 6, 9, 12,15; Except for 3, 1 includes 1, 4, 7, 10, 13 and16; Except 3, 2 includes 2, 5, 8, 1 1, 14. 1, divided by more than three zeros, for up to three consecutive periods; In addition to 3, 1 has at most 6 consecutive periods; In addition to 3+2, up to 5 consecutive periods; 2. Except for the remaining three zeros and the remaining 1, it appears at most once, and then comes out many times; Except for 3+2, it appears at intervals of up to 5 times, and then comes out many times; 3. Except for more than three periods of 0, 1, 0, 2 ... at most, it is a single continuous jump 10 and then reversed and repeated, but generally it is only 4-5 consecutive jumps. Five, divided by four remainder classification. The number of zeros other than 4 includes 4, 8, 12 and16; Except 4, 1 including 1, 5, 9 and13; Except 4, 2 includes 2, 6, 10 and14; The remaining 3 includes 3,7, 1 1, 15. 1, divided by 4, each category has at most 3 consecutive periods; 2. Except for four zeros, four appear at most intervals and then come out many times; Except for 4, 1 is 3 times; Except for 4, 2 is 7 times; Except for 4, 3 is 6 times; Except for those above 3, 0, 2, 4, 2 ... Up to 8 consecutive jumps will be reversed and repeated. Sixth, prime statistics. Prime numbers include 1, 2, 3, 5, 7, 1 1,13; Nonprime numbers include: 4, 6, 8, 9, 10, 12, 14, 15, 16. 1, and the prime number lasts for at most 4 consecutive periods; Non-prime numbers have at most 6 consecutive periods; 2. Prime numbers are separated at most seven times and then many times; Non-prime numbers come out many times every three times at most; 3. Prime number, non-prime number, prime number ... after five consecutive jumps, reverse and repeat. Seven, omission. Based on this period, the previous period is called ellipsis 0, the first two periods are called ellipsis 1, the first three periods are called ellipsis 2, and so on. 1, missing the heat number below 10 for up to 4 consecutive periods; The number between 10-20 is omitted, and the maximum number of connections is 4; Missing more than 20 unpopular numbers for up to 3 consecutive issues; 2. Omitting 0, 1 and 2 is the most common, and it is necessary to choose these three numbers if 12 does not appear at most; 3, lottery blue balls are generally alternating hot and cold numbers, and you can't blindly pursue the unpopular number that has not been sold for a long time. Eight, the relationship between the previous basketball and the current basketball. Assuming that the last basketball period is 07 and the current basketball period is 06, the statistics in this column are-1; If the current period is 07, the statistics are the same; If the current period is 12, the statistics in this column are +5. 1, the last blue ball and the current blue ball can add up to five consecutive periods, but generally only two consecutive periods; Up to 3 consecutive cycles; 2. Increase or decrease in the relationship between the previous period and the current period, once 1 1, and then many times; 3. The relationship between the previous period and the current period is increasing, decreasing, being the same, decreasing ... after a single continuous jump 10 period, it is reversed and repeated. 9. The relationship between the mantissa of the last red ball and the mantissa of the current blue ball. Count whether the blue ball mantissa in this period appears in the red ball mantissa in the previous period. 1, and the mantissa of the last red ball includes the mantissa of the current blue ball, which lasts for 6 consecutive periods at most; Does not include up to 4 consecutive issues; 2, including the maximum interval of 4 times after a single time; Not including the maximum interval of 3 times; 3, including, excluding, including ... After a single continuous jump of up to 3 periods, it will be reversed and repeated. 10. the relationship between the mantissa of the current issue number and the current blue ball. Assuming that the lottery numbers of 04023, 04033 and 04043 are 13, 10 and 08 respectively, and the mantissa of the lottery numbers is 3, they are counted as the same -3 and +5 respectively. 1, the relationship between mantissa and blue ball in this period is added for at most three consecutive periods; Up to 7 consecutive periods; 2. The maximum interval of "Add" is 10, which will be repeated after a single time; At most, "subtract" every 3 times and then give it many times; 3. "Add", "Subtract" and "Same" will be reversed if they jump up to 8 times. 4. This statistical column+1 is the same, and-1 is the most important. If you don't appear for up to 9 consecutive periods, you should pay attention to matching. The data summarized by the author of this paper can withstand repeated verification by lottery friends. Now give two examples to illustrate: (1)04049 lottery number, and the missing numbers 0, 1 and 2 were not issued in the previous 12 issue. It is judged that the numbers of the next three issues may be issued in this issue, but the recent numbers 04009, 040 19 and 04039 are all decimals, and the small mantissa 14 is boldly excluded according to the principle of balance. Select 06 and 09, and the result will be 09; (2) For the lottery number of 04050, except for 3+0, three consecutive lottery numbers have reached the limit value of this feature. If 03, 06, 09, 12 and 15 are boldly excluded, many features are not obvious, but the author finds the missing 5, 7 and 10. The number 05 corresponding to ellipsis 5, the number 02 corresponding to ellipsis 7 and the number 03 corresponding to ellipsis 10 have been excluded. Select 05 and 02 to calculate the result of 02 again. Of course, any method can only be interval accurate, and cannot be copied like a mathematical formula. Lottery friends should use this method flexibly in order to obtain unexpected benefits.