Backdoor Draw in Poker

A backdoor draw needs favorable cards on both the turn and river to complete. Backdoor straight and flush draws are weaker than normal one-card draws, but they can still add useful equity to a hand. Example You hold A♠ 7♠ on a K♠ 9♦ 3♣ flop. You do not have a flush draw yet, but two more spades would make a flush, giving you a backdoor flush draw.