Npc Problems: Vertex Coloring is a relaxing minimalistic puzzle game about a real computacional problem, hard to solve, even for artificial intelligence. Can you solve this problem?

## About This Game
Npc Problems: Vertex Coloring is a minimalistic puzzle game about a real
computacional problem.
* An unconventional puzzle game.
* A problem hard to solve even for supercomputers and artificial intelligence.
* Solve handcrafted instances of the Npc problem vertex coloring.
* Enjoy a relaxing environment with neon graphics and original synthwave musics.

Linked circles cannot have the same color, can you paint all the circles using
the minimal number of colors?

Npc Problems: Vertex Coloring