The principle of this puzzle game is quite simple : touch any hexagonal tile to flip its neighbour. You win when every tile of the level is flipped. But flip a tile twice, and you’ll have to flip it again, making it hard to succeed !
The game features differents tileset, and an automatic solver. Using the solver causes the current level to fail : even if you finally solve the level, it will not grant you access. You have to solve a level without using solver to gain access to the next one.