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Poker glossary

Set

What it means

A set is three of a kind made specifically by holding a pocket pair that matches one card on the board. This differs from “trips,” where you hold one card that matches two on the board. Sets are among the most deceptively strong hands in poker because they’re well-disguised and difficult for opponents to put you on.

How it works at the table

You’re dealt 7♣ 7♦ in middle position with 100bb effective stacks. After you raise to 3bb and get one caller, the flop comes 7♠ K♦ 4♥. You’ve flopped a set of sevens. Your opponent checks, you bet 4bb into the 7.5bb pot, and they call. The turn brings the J♣. When your opponent checks again, you size up to 12bb into the 15.5bb pot, building a pot to get maximum value from their likely king-high hands or draws.

Strategic context

Sets are powerful because they’re hidden and dominate most other holdings on coordinated boards. You’ll flop a set roughly 12% of the time when you see a flop with a pocket pair. The strength comes from their ability to win big pots against overpairs, two pair, and top pair hands. Smart players fast-play sets on wet boards but can slow-play on dry textures. Understanding position helps you extract maximum value when you hit these monsters.

Common mistakes

Players overvalue small pocket pairs preflop, calling large 3-bets just to “set mine” without proper implied odds. They also slow-play sets too often on dangerous boards where draws are present, missing value and allowing opponents to catch up cheaply. Another error is failing to fold sets on extremely coordinated boards where straights and flushes are likely - set over set is rare, but losing to obvious straights isn’t.

Sets connect to several key poker concepts. The implied odds of hitting a set influence preflop decisions with pocket pairs. Set mining requires understanding stack-to-pot ratios and opponent tendencies. Post-flop, sets often create situations where you’re deciding between fast-playing for value or slow-playing to induce bluffs. The relative strength of your set depends heavily on board texture and action.