K♦9♦ BB vs SB, preflop, 100 bb

Best play: Raise / 3-bet

Why

Treated as a first-in spot per the action label, hero raises K9 suited (K and 9 of diamonds). The live options are open-raise or fold, not call, because nobody has opened. K9s is a strong-enough suited broadway to open: it makes top pair with a king, picks up nut-flush equity in diamonds, and captures dead money with fold equity. So the aggressive line is best, taking the pot uncontested often and outflopping the bottom of any caller s range when called. Folding a suited king-high hand this playable from a stealing seat would be too tight.

Key idea

First-in with a suited broadway like K9s, you raise or fold; here you raise. It steals dead money now and flops top pair plus nut-flush equity when called.

Common mistake

Trying to call with K9s when it is folded to you. There is no opener to call; the choice is open-raise or fold, and K9s opens.