102 puzzles tagged difficult
Tags to specify: +hard +rotation +color +colorful +animal +blue +white +art +water +natural

Hydrangea
Sick
NotACaterPillar
GreenBushYellowLights
LobsterMan
TheUnKnowableNess
YoWom
BlueJig
L'Inconnue
IceBlue
GallopingGourmand
TortoiseHead
SixBrightWiredFeathers
Okbko
HYDROTHERMAL-WORM-ELECTRON-MICROSCOPE
Gq8er
IceIceBaby
Pt
OceanLentils
HalloweenBats
The City of Water
TwoZebras_DavidSApril
DuckToDuckToDuck
Pearls