Google results state that "Chesscake" is a shorthand for "Checkerboard Cheesecake". Further google searching reveals that there's a recipe for "Checkboard Brownie Cheesecake". All-in-all, this ended up being a surprisingly productive use of my time. :'P

Further weirdness, this game doesn't show up in either Google search or Store search. Then again, the SG url lists its name as "Chesssake" and the Steam store URL lists it as "Chessak" (which is the only one Google does actually return results for), so this game seems to have utilized some rather interesting presentation methods even before we consider the oddity that is labeling a checkers game as "Chess". Or as "Cake", at that.

Not that I can't understand wanting to add cake to everything. Cake makes most anything better.