Genshin Impact - Watatsumi Island - 9 -slotted puzzle breakdown
At this location you’ll find a 3 by 3 puzzle and to solve it you need to use the hints from the book nearby. Mainly these ones.
“One shall be north, east shall be two. South three, and West, four...”
“...Adding on another four for those cubes with floating stone slates on them gives us five through eight...”
“... The sole empty position shall be 9”
This tells us if the cube is facing:
No floating slate Floating Slate
North: 1 North: 5
East: 2 East: 6
South: 3 South: 7
West: 4 West: 8
and the empty slot is 9
To know what direction is north use your mini-map.
The goal of this puzzle is to make the sum of all columns, rows, and diagonals the same. This puzzle has 3 phases. Relog after each phase completion to get the next.
The ones circled in red are moveable while greens are fixed. With the given hints we can confirm that:
a b c Horizontal Vertical Diagonal
x - 3 8 = ? + 3 + 8 = ? ? + 9 + 2 = ? ? + ? + ? = ?
y 9 - 1 = 9 + ? + 1 = ? 3 + ? + ? =? 2 + ? + 8= ?
z 2 - - = 2 + ? + ? =? 8 + 1 + ? = ?
So how do we solve this?
First we want look at the ones that are missing the least amount of info. Column a and row x are both 11 and missing (a,x). Diagonal / is 10 and missing (b,y).
Looking at the type of slates they are we can say (a,x) can be 1-4, while (b,y) can be 5-8.
That means column a and row x can be a maximum of 15, while diagonal / can be a minimum of 15. Since the sum can’t be greater or less than 15 the answer is 15. So your solution is:
a b c Horizontal Vertical Diagonal
x 4 3 8 = 4 + 3 + 8= 15 4 +9 +2 = 15 4 + 5 + 6 = 15
y 9 5 1 = 9 + 5 +1= 15 3 + 5 + 7 = 15 2 + 5 + 8 = 15
z 2 7 6 = 2 +7 +6 =15 8 + 1 +6 = 15
a b c Horizonatal Vertical Diagonal
x - 9 2 ? + 9 + 2 = ? ? + 3 + 8 = ? ? + ? + 6 = ?
y 3 - - 3 + ? + ? = ? 9 + ? + ? = ? 8 + ? + 2 = ?
z 8 - 6 8 + ? + 6 = ? 8 + ? +6 = ?
column a = 11 (a,x) = 1 - 4 column a, row x, Min - 12 max - 15
row x = 11 (b,y) = 5 - 8 column c, min - 13 max - 16
column c = 8 (c,y) = 5 - 8 diagonal /, min - 15 max - 18
diagonal / = 10 range - min - 15 max - 15
Solution = 15
a b c Horizonatal Vertical Diagonal
x 4 9 2 4 + 9 + 2 = 15 4 + 3 + 8 = 15 4 + 5 + 6 = 15
y 3 5 7 3 + 5 + 7 = 15 9 + 5 + 1 = 15 8 + 5 + 2 = 15
z 8 1 6 8 + 1 + 6 = 15 8 + 1 +6 = 15
a b c Horizonatal Vertical Diagonal
x - 7 - ? + 7 + ? = ? ? + 9 + ? = ? ? + 5 + ? = ?
y 9 5 1 9 + 5 + 1 = 15 7 + 5 + 3 = 15 ? + 5 + ? = ?
z - 3 - ? + 3 + - = ? ? + 1 +? = ?
This time the solution is given to you, 15.
Lets see what we can conclude
(a, x) - 1-4
(a, z) - 1-4
(c, x) - 5-8
(c, z) - 5-8
column a - 9+6=15
(a,x) and (a,z) can be (2,4),(3,3),(4,2)
row x - 7 + 8 = 15
(a,x) and (c,x) can be (1,7),(2,6),(3,5)
column c - 1 + 14
(a,x) and (c,z) can be (7,7),(8,6),(6,8)
row z - 3 + 12 =15
(a,x) and (c,z) can be (4,8)
diangonal \ - 5 + 10 = 15
(a,x) and (c,z) can be (2,8),(3,7)(4,6)
diagonal / - 5 + 10 = 15
(c,x) and (a,z) can be (6,4),(7,3),(8,2)
you can see that row z only has 1 solution, let plug it in
a b c Horizonatal Vertical Diagonal
x - 7 - ? + 7 + ? = 15 ? + 9 + 4 = 15 ? + 5 + 8 = 15
y 9 5 1 9 + 5 + 1 = 15 7 + 5 + 3 = 15 4 + 5 + ? = 15
z 4 3 8 4 + 3 + 8 = 15 ? + 1 + 8 = 15
After filling those 2 the rest should be easy.
a b c Horizonatal Vertical Diagonal
x 2 7 6 2 + 7 + 6 = 15 2 + 9 + 4 = 15 2 + 5 + 8 = 15
y 9 5 1 9 + 5 + 1 = 15 7 + 5 + 3 = 15 4 + 5 + 6 = 15
z 4 3 8 4 + 3 + 8 = 15 6 + 1 + 8 = 15