Advent calendar 2019
It's nearly Christmas and something terrible has happened: while out on a test flight, Santa's sled was damaged and Santa, Rudolph and Blitzen fell to the ground over the Advent Isles. You need to find Santa and his reindeer before Christmas is ruined for everyone.
You have gathered one inhabitant of the four largest Advent Isles—Rum, Land, Moon and County—and they are going to give you a series of clues about where Santa and his reindeer landed. However, one or more of the islanders you have gathered may have been involved in damaging Santa's sled and causing it to crash: any islander involved in this will lie to you to attempt to stop you from finding Santa and his reindeer. Once you are ready to search for Santa, Rudolph and Blitzen, you can find the map by following this link.
Each of the clues will be about Santa's, Rudolph's or Blitzen's positions in Advent Standard Coordinates (ASC): ASC are given by six two-digit numbers with dots inbetween, for example 22.214.171.124.84.55. For this example coordinate, the islanders will refer to (the first) 12 as the first coordinate, 52 as the second coordinate, (the second) 12 as the third coordinate, 13 as the fourth coordinate, 84 as the fifth coordinate, and 55 as the sixth coordinate.
Here are the clues:
3Rum says: "The product of all the digits in Blitzen's six coords is 432."
21Moon says: "Blitzen's fifth coord is 23."
9Moon says: "Blitzen's third coord is 23."
1Land says: "Santa's third coord ends in 3, 0 or 1."
2Land says: "Santa's third coord ends in 2, 0 or 3."
4Rum says: "Santa's second coord ends in 3, 4 or 1."
12Rum says: "Rudolph's second and sixth coords are both 64."
10Rum says: "All six of Rudolph's coords are factors of 256."
18Moon says: "Santa's fourth and fifth coords are both 79."
24County says: "Santa's third coord ends in 3, 2 or 1."
22Land says: "Santa's sixth coord is not 43."
7Rum says: "Santa's sixth coord is 43."
23County says: "One of the digits of Santa's third coord is 7."
14Land says: "Santa's third coord is 12."
5Rum says: "Santa's first coord is 36."
15Rum says: "Blitzen's first coord is 23."
17Rum says: "The first digit of Santa's third coord is 1."
8County says: "Santa's third coord shares a factor (≠1) with 270."
6County says: "Santa's second coord is 21."
16Land says: "Blitzen's second coord is 21."
20Moon says: "All six of Rudolph's coords are multiples of 8."
11Moon says: "The sum of Rudolph's six coords is 192."
13Moon says: "Santa's second coord is 21 or 11."
19Moon says: "Blitzen's fourth and sixth coords are both 11."
To find a point's ASC coordinates, split a map of the islands into a 9×9 grid, then number the rows and columns 1 to 9: the first two digits of ASC give the vertical then horizontal position of a square in this grid. The next two digits then give a smaller square when this square is then itself split into a 9×9 grid, and so on. An example is show below.
You can view the map here.