Fight the virus! His crown is constantly growing, you need to rotate the core and find chains of spikes of the same color and destroy them. Chains can be searched for by adjacent cells in all directions. The longer the destroyed chain is, the more points are given, and most importantly, the fewer spikes will grow on the next turn. For the destruction of fully grown spikes are given much more points than for new ones. If a chain of more than 7 cells is destroyed, the spikes for the next move will not grow at all. Each turn is limited in time, hurry up before the virus has collected the entire crown!