This is correct. The default Grid size is 8 cards x 8 cards = 56 cards, but we have included 60 Grid cards in the game. The additional cards are used to adjust the difficulty level (for example: players could remove the 2 CPU cards, or a Player could remove 2 Wall cards and replace them with Blank cards, etc).
Before starting the game the players must agree on the degree of difficulty and remove 4 Grid cards. The default game would require the players to remove 2 Wall cards and 2 Blank cards.
