The sum of the three digits of the winning number is called the sum. Taking the single digits of sum, we can get ten different mantissas from 0 to 9, which are called sum mantissas or sum. Each sum suffix contains the same number 100. Note, the number type is Leopard 1, group selection is 3 9, and group selection is 6 12, totaling 22 different numbers. , refers to the method of selecting only eight sums and tails as initial candidates in this period. The selection method is very simple, and the success rate is above 90%. First of all, we can exclude the sum and tail of the absolute difference between adjacent prize numbers, and exclude the sum of the absolute values of the bit-by-bit subtraction between the current winning number and the previous winning number. For example, 3D 106 winning number 669 107 winning number 609 108 winning number 203 609-669 = 060 = 6 excluding and ending correctly 6 109 winning number 630 203-609 = 0 excluding and ending correctly 0 65438. 1 630-203 = 433 = 0 exclusion and correctness with suffix 0 1 1 winning number 079 85 1-630 = 22 1 = 5 exclusion and correctness with suffix 51/kloc. Correct 1 13 winning number 380 529-079 = 550 = 0 excluding and ending 0 correct 2. The same and tail adjacent to the tail can be excluded. When the winning number of this issue is issued, the latest sum and tail issued last time can be retrieved, and the sum and tail appearing in the next issue can be excluded. For example, 107 winning number 609 108 winning number 203 3D, 8 16 winning number 660 next issue, 630 winning number 109 winning number 630 last issue and 609 winning number 203, and the last five issues1/kloc. 5438+0 The previous prize number 045 and the tail 9, the next prize number 869 exclude the correct sum 3, the previous prize number 079 and the tail 4, the prize number 67 1, the next prize number 045 exclude the correct sum 9, the previous prize number 529 and the tail 6 prize number 240. Tail 1 correct 165438+ for example 1 1 winning number 079 excluding tail 59 correct1/2 winning number 529 excluding tail 8 1 correct1. Of course, there are two ways to get 1.