What is a Blocker in Poker? (Poker Blocker Meaning)
A blocker is a card held by a player that makes it impossible (or less likely) that an opponent has a hand that includes that card (or a card of the same rank). Also known as card removal or combinatorics, blockers are a fundamental concept in poker game theory.
For example, if you hold Aâ™ K♥ and the board reads Jâ™ Tâ™ 2â™ 5♥ 6♦, it’s impossible for your opponent(s) to have the ace-high flush as you hold the Aâ™ blocker. Similarly, if you hold 7♥ 7♦ and the board reads 8♦ 6♥ 5♦ Qâ™ Kâ™ , it is significantly less likely that your opponent has a straight as you block half of the possible combinations of 9-7 and 7-4.
Want to learn the strategic value of blockers in poker? Read this guide:
Boost Your Winnings by Using Blockers in These 3 Common Spots
Or check out this podcast!