Here is the full list of all 50 Hentai IQ Puzzle achievements. It takes around 0-1 hour to unlock all of the achievements.
S
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V
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X
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Z
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3
4
5
6
7
8
9
10
❤
❤ ❤ ❤
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cube
CUBEE
◇
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►
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▲
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777
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R