14. Xiao Jun is playing a dice-throwing game. At the beginning, he stands on the starting square (as shown in the figure). If he rolls 1 to 5, he moves forward the number of squares equal to the number rolled. If he rolls a 6 or if he moves past the finish square, he immediately returns to the starting square. If Xiao Jun rolls the dice three times and lands exactly on the finish square, how many possible combinations of rolls are there?
【Analysis】It takes 8 steps from the starting point to the end point, which means at least 2 rounds are needed. Therefore, Xiao Jun might have walked three times to reach the end point, or he might have rolled a 6 the first time and then took 2 more rounds to reach the end (he cannot return to the starting point after 2 rounds, otherwise he won't be able to reach the end). If he walked three times, since $7=5+1+1=4+2+1=3+3+1=3+2+2$, among which $511, 331, 322$ each have 3 ways of rolling, and 421 has 6 ways of rolling, there are a total of 15 ways of rolling.
If he rolled a 6 the first time, since $7=5+2=4+3$, there are 4 ways of rolling in total. In summary, there are 19 ways of rolling.