Don't ask me because I got filtered by the SH1 piano puzzle.

>>693204110
The SH1 puzzles are infamously obtuse but this SH3 puzzle is a serviceable brain teaser except for the fact it has a line that blatantly lies to you.

>>693204029
It's some retarded japanese wordplay, basically it tells you one of the number is 4.

>>693205407
"The final key" is referring to the final entry on the keypad, number 9.

>>693204029
To break it down, numbering the combination starting from A for the first number
>A = <B
>B = 2xC
>C = >D
>D = A / 2
All four are not repeated, which shortens the potential combinations list immensely.
Three are not in the top row, which specifies that one of them is.
Two are not in the right row, which specifies that two are.
From there, it's basic math.

Since B is C multiplied by 2, we can narrow C down to one of the following
2 = 1x2
4 = 2x2
6 = 3x2
8 = 4x2

And D is half of the first, and the only halves are the same numbers for C: 2, 4, 6, and 8.
From this, we can also eliminate multiple other numbers:
5, 7, and 9 are all irrelevant.
The only relevant answers are:
1, 2, 3, 4, 6, and 8.
Only one of ABCD can be 1-3, which means 4, 6, and 8 are definite answers.
Two are rightmost numbers, which means 3 is the top number.
So the correct numbers are 3, 4, 6, and 8.
And thus
Second is twice the third, which is smaller than fourth, so;
Third is 3
Second is 6
Fourth is 4
First is 8.
8634 is your answer.

EASY. Tell me I'm right OP, I only play on HARD RIDDLE you fucking BITCH

>>693206026
You were wrong haha eat shit.

>>693206026
You were right, please let me tongue your anus.