A flush in cribbage is 4 or more cards all of the same suit (for example, four diamonds). If you hold 4 cards of the same suit in your hand, you score 4. If the turn-up card is also the same suit, you score 5.

However, in the crib, only a 5-card flush will count (the 4 cards in the crib and the turn-up card must all be the same suit).

See the main cribbage rules page for more information, and also our cribbage scoring chart.