To play this cribbage solitaire game, you deal out cards from a shuffled pack one at a time, placing them into a 4x4 grid. Your aim is to make the maximum score from each of the rows and columns. Once you have dealt out the 16 cards, turn one further card up as the starter. Each row and column in the grid is scored as a cribbage hand, using the normal cribbage scoring rules. To 'win' you need to score more than 61 points for all the hands combined.
A more interesting variation on standard Cribbage Squares is to use one or two 'reserves': if you are not sure where to place the current card, you can add it face-up to a reserve pile. The top card from each reserve pile may be played at any time.
Cribbage Squares strategy is not easy at first. You need to use a strategy which makes the maximum score from each hand given the likely turn-up cards.