Semi-Bluffing with Combo Drawseditor's note: this article appeared in the April 9th, 2008 issue of CardPlayer magazine.
I flopped a combo gutshot-straight and flush draw, exactly the sort of flop I’m looking for in a multiway pot with suited connectors. The action was on me to start, and I had to decide whether to check or lead out. With a big draw like this on the flop and anywhere from three to 10 times the pot left to play, my goal is almost always to let other players put a bit more money into the pot before I raise all in. As this column will show, these spots tend to be very profitable, since a big draw has a very good chance of beating even a set if I do get called. David Sklansky coined the term semibluff to describe this type of play, in which you are hoping that your opponent folds to your bet, but you have a strong chance to improve to the best hand if he calls. Moving all in with a combo draw on the flop is the archetypal no-limit hold’em semibluff.
I checked, the preflop raiser checked, the first caller bet $18, the next raised to $96, the next called, and the action came back to me. I moved all in for $591. Everyone folded back around to the cutoff, and he called with a set of sevens. At this point, I was about 35 percent to win and the pot was $1,386. My equity in the pot was .35 x $1,386 = $485, a loss of about $100 relative to folding. However, I was shoving into a pot of $300, so my semibluff would show a profit if I took it down just over one-fourth of the time and was called by a set the remaining three-fourths of the time. Of course, sometimes I’ll be called by hands other than a set. I’m about 45 percent against A-K or 7-6, 33 percent against an ace-high flush draw, and, the worst-case scenario, 18 percent against the K♣ X♣ for top pair and a higher flush draw. I will average anywhere from 33 percent to 37 percent against a reasonable calling range from one opponent. I’m ignoring the situation in which I get called by two opponents, because it will happen very rarely and the math is a bit cumbersome. If I get it in against two sets or a set and two pair, that is actually pretty good for me, but if I am up against a set and a higher flush draw, I am in really bad shape. If I expect that my bluff wins the pot a third of the time, over three iterations of this situation, my expectation is: Called twice: lose 2 x $100 = $200 This hand illustrates why semibluffing with big draws on the flop is such a powerful play. If I bluff $600 into $300 on the river, my bluff has to succeed two-thirds of the time to break even, but when I move in for the same amount on the flop with a big draw, I can “fail” more than two-thirds of the time and still show a profit! ♠
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