The NoPayPOKER.com Free Texas Hold Em Guide to the Sanity of Moving All-in Preflop - Is it Ever NOT Insane?
June 4th, 2010It’s a common sight on free poker site and, oddly even in some higher stake poker tournaments to see players go all-in preflop when they could (should) call and hope to see the flop. Why do they do it?
Of course to steal in cash games. In free poker sadly it’s more just for the hell of it! However, if called, what advantages does going all-in give? I will look at 2 hands to analyse why:
HAND #1
Blinds: 6k/12k
A has Q-Q raises to 36k
B has 10-10 calls 36k
C has K-K reraises to 140k
A reraises all-in (Pot 989k)
B folds
C calls 643k (Pot 1.632m)
Board ended Jc-Jd-6c-Qd-3d
A went all-in for the reason that by three-betting, he is able to push one of B and C from the pot, and if C (the likely caller) calls, A hoped that it will be A-K or A-x, where he has still an edge. But it turns out, C had K-K, so A was the underdog. Yet A won the hand with a Full House (Queens over Jacks).
However, if A just called, what would happen then is that B would also call, and so it will be a three-way pot.? On a FLOP of Jc-Jd-6c, C would have position over A, whose Queens are weakened since the Board is paired, so if one of B or C bluffs, A will have difficulty playing.
Plus if A decides to play on strong he may make B and C believe he is on a J and they may both fold. Or later on the hand, if A, who hit his Full House on the turn, suddenly played strongly, the remaining player/s may fold because their hands are not so strong enough. So A will win less than what he won when he moved all-in and won the hand.
So one reason for moving all-in preflop is: Your chip stack is so low that any decent hand you have will be sufficient for an all-in (on the above, Q-Q should be played cautiously with two more players and a reraise on the Flop), and it pays to win more chips than less if you are to get back in the tournament.
HAND #2 - Following on from hand action
A has 8s-8h moves all-in 387k
B has 7d-7c, calls 307k (Pot 819k)
They could both have played safe.. But A decided to gamble with a common all-in hand. Common all-in hands include Pairs, A-x and any two face cards (preferably suited). So another reason is: If you don’t have A-A or K-K but a common all-in hand, you will be called also with a common all-in hand.
With Pairs vs. two overcards, it does not really matter what you have, because you’re both even-money. With Pairs vs. Pairs, you run the risk of being the big underdog, but you can also be a big favorite if you are lucky. With any other cards, you either have two live cards or at worst, say A-K vs A-Q, if you have the A-Q, you still have a 25% chance.
So how did it turn out?
It ended with 5s-9s-6h-2c-8d. So A hit a Set, B hit a Straight. B knocked out A. It doesn’t matter; we can also imagine a situation that B was the one who moved all-in and A called. B hit his Straight still. But if B just decided to see a Flop, what could happen? A can push B out by representing a Nine on the Flop and the Turn so that B will fold (unless B has the courage to move all-in).
Also, if B hit the river Straight, A will be reluctant to play the Set he has. B will win less chips than he would (similar to HAND #1). But this example gives us another reason.
You move all-in so that no one can push you away later if your marginal hand beats a more marginal hand later, and so your marginal hand will evolve into a strong hand uncontested, unpushed. Here is a clearer case: Suppose it’s A-10 vs 7-7.
The Board may end up 10-K-K-Q-5 and with overcards, a Straight possibility and on a paired Board the one with 7-7 can push the one who had the A-10 at some point. Or it may be 10-K-Q-4-J and the one with the A-10 will be out of the pot before the river if the one with 7-7 plays aggressively.
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