11. (12 points) Fill in the blanks with numbers $1-6$, so that the numbers in each row and column do not repeat, the numbers on both sides of the black dot are in a two-fold relationship, and the numbers on both sides of the white dot have a difference of 1. Then the five-digit number formed by the first 5 numbers from left to right in the fourth row is $\qquad$

Fill in the blanks with numbers $1-6$, so that the numbers in each row and column do not repeat, the numbers on both sides of the black dot are in a two-fold relationship, and the numbers on both sides of the white dot have a difference of 1. Then the five-digit number formed by the first 5 numbers from left to right in the fourth row is $\qquad$
【Solution】Solution: According to the problem, we know:
As shown in the figure, $D, E, F$ must be $1,2,4$ or $4,2,1$. Therefore, $B, C$ must be 3 and 6. Hence, $A$ is 5.

And $G, H, I$ are three consecutive natural numbers, with $I$ having a 2-fold relationship, so they can only be $1,2,3$.
Thus, the top right corner is 6, and the top left corner is 4.
And it can be determined that $B$ is 6, $C$ is 3. Therefore, the cell to the right of $C$ is 6. Using this as a breakthrough, the table can be filled out as shown in the figure: Therefore, the answer is: 21436