Squirrels have invaded and have left their chestnut shells behind! Some levels will require you to collect a certain number of chestnuts and other levels will include chestnuts as a blocker!
Chestnuts can't be matched with each other, so you'll need to collect or remove them by making matches of 3 or more next to them. You can also use your boosters and power-ups to collect chestnuts, one in particular will be very effective 😉