Four Color Problem / Animated Four Color Problem

Click the shapes to change their colours. Each shape must be a different colour from the neighbors it touches.

Four Color Problem Update Information

Four Color Problem Menu

Come on!

Come on!

(Animated puzzle)
This carrot doesn't seem to come off easily.
PANCAKE

PANCAKE

Would you like four colored flavor pancake?
KOINOBORI

KOINOBORI

Japanese traditional carp-shaped windsock.
ROSE

ROSE

What color rose do you like?
Fallen Leaves

FISH

What kind of fish would you paint?
Girl

Girl

Paint a girl beautifully.
Fallen Leaves

Fallen Leaves

Please classify the fallen leaf into the four color.