Alright so here is the answer to Puzzle 2:

This one was supposed to be a lot easier, there is a total of 9 options for the leftmost digit since 0 cannot be in that place, and then 9 options for the second digit since 0 can now be included, then 8 and so forth. The solution becomes 9x9! which equals 3,265,920.


https://www.talkimg.com/images/2023/10/05/Pex3j.png