Here is the full list of all 50 Hentai IQ Puzzle achievements. It takes around 0-1 hour to unlock all of the achievements.
777
C
D
cube
CUBEE
◇
◈
►
◄
▲
▼
□
■
10
❤
❤ ❤ ❤
8
9
5
6
7
3
4
1
2
Z
〇
X
Y
U
V
W
S
T
Q
R
O
P
M
N
K
L
I
J
G
H
E
F
A
B