Why are there 2 cheese pieces missing on Cheese Quest level 6 (Cool Math Games)?

There is no "Cheese Quest" game on Cool Math Games. There are many games on Cool Math Games that feature cheese or mice, but not one with that exact name.

It's possible you're thinking of a different game. If you can provide more details about the game, like the type of game, the graphics, or other features, I may be able to help you find it.