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Blockers

How the cards in your hand change what they can hold: counting flush combinations, and why holding the ace matters.

8 steps, as text. step through the interactive version →

  1. 01, open this step in the interactive version

    The river is out. Three hearts are on the board, so any two hearts in their hand make a flush.

  2. 02, open this step in the interactive version

    How many flushes could they hold? Ten hearts are left. Any two of them: 10 × 9 ÷ 2 = 45 combinations.

  3. 03, open this step in the interactive version

    Nine of those include the A♥. That’s the nut : on this board, nothing beats it.

  4. 04, open this step in the interactive version

    Now you hold A♥ Q♣. Your ace is one of those ten hearts, so it can’t be in their hand. Nine hearts are left for them: 36 flushes, and no nut flush at all.

  5. 05, open this step in the interactive version

    A card in your hand that removes combinations from theirs is called a . Your A♥ blocks every nut flush.

  6. 06, open this step in the interactive version

    That makes A♥ Q♣ a good here. You have no flush, but they can never hold the nuts, and fewer of their hands can call a big bet.

  7. 07, open this step in the interactive version

    When you call, the logic flips. You want cards that block their strong hands and leave their bluffs alone.

  8. 08, open this step in the interactive version

    Pick a hand and watch what it removes from theirs.