Tuesday, 22 October 2013

A humorous fold

Hand played on Pokerstars
Seat 1: Hero (755 in chips)
Seat 2: Player 1 (1718 in chips)
Seat 4: Villain (3952 in chips)
Seat 5: Player 2 (740 in chips)
Seat 6: Player 3 (1835 in chips)
Hero: posts small blind 50
Player 1: posts big blind 100
*** HOLE CARDS ***
Dealt to Hero [Qd As]
Villain: raises 200 to 300
Player 2: folds
Player 3: folds
Hero: raises 400 to 700
Player 1: folds
Villain: calls 400
*** FLOP *** [Th 3d 5c]
Hero: bets 55 and is all-in
Villain: folds
Uncalled bet (55) returned to Hero
Hero collected 1500 from pot
Hero: doesn't show hand

Two updates in one day, you guys are lucky!
Sometimes you see things in SNGs that never fail to amaze you and I had a hand come up earlier that was too good I had no option but to come on and share.

So, first things first, my opponent makes a promise-to-call 3x raise from middle position and dealt A-Qo in the SB with 7.6bbs I have a no brainer shove. Instead of shoving however, I misclick raised to 700 leaving just 55 chips behind. My opponent calls.
The flop falls 10-5-3 rainbow and oh well, nothing to do but shove those 55 chips into the pot which is sitting at exactly 1500 right now and hope my opponent has a worse A high or a hand like K-J/K-Q which we’re ahead of.

And then something incredible happens…My opponent folds!
WTF?!?! Really?…Are those pot odds of 28.27 to 1 not good enough?

Even my dead great Gran knows this is a bad fold. It’s worth thinking about just how bad exactly this might be, so let’s take a look at the relevant numbers.


The numbers

With pot odds of 28.27 to 1, my opponent only needs to have exactly 3% equity against my range to break-even and anything >3% will win money. Against my actual hand, even if he had 9d-2c (no backdoor flush draws) he still has 23.13% equity according to Pokerstove which makes folding seem truly horrendous since only anything above 3% is required. And infact, with these overwhelming pot odds there is no hand that would ever be a fold here regardless of my range pretty much: if my range was simply pocket As which it clearly isn’t, even that 9d-2c has 3.939% equity against that hand/range on the flop meaning mathematically there is no hand that would ever warrant a fold here unless my range was limited to a set/two pair on this board which we can safely say isn't.
Indeed, if he had 2-9o and I had A-A he would need to backdoor a running two pair/trips which obviously isn’t going to happen too often but the fact is it doesn’t need to happen too often to make calling profitable given what’s already in the pot and what he stands to lose/gain by committing those extra chips. The fact of the matter is, even if you had that 2-9o in Villains position and the Hero shoved all-in on the flop and flipped over pocket As for you to observe, you would still be calling off. Hopefully those are the sort of plays that players of this calibre are making on a regular basis and keeping poker profitable. At least we know there’s still money in SNGs…for now…

I guess I’m kind of glad now I misclicked pre-flop and manufactured that extra bit of fold equity post-flop!
Peace out

MikeyMcD45
 

Nash Equilibrium

 
So my latest article for the official ICMIZER website has been published and can be read here:
 
 
In this article, I explain what Nash Equilibrium is when it comes to poker whilst highlighting some of its limitations, and evaluate the Nash calculator function in ICMIZER. This feature was in beta for quite some time but has been fully developed and is now good to use.


In the meantime, here’s an excerpt from the article:
One of the most common situations in poker where people adopt Nash ranges is HU at high blind levels against a tough opponent. This limits any edge your opponent has over you and any shove you make is unexploitable so can’t be wrong. If you revert to this style of play then your opponent will have to do the same to avoid being exploited. Usually, the caller will do better since their range is tighter so when stacks end up all-in the caller will have a stronger range; this however is balanced with the fact that the pusher picks up the blinds more often, so in the long run the number of chips lost and won will be equal therefore it’s a break-even proposition for both player’s.

MikeyMcD45

 

Saturday, 12 October 2013

Getting owned

Hand played on Pokerstars
Seat 1: Player 1 (1340 in chips)
Seat 2: Player 2 (1680 in chips)
Seat 3: Player 3 (1010 in chips)
Seat 4: Player 4 (1700 in chips)
Seat 5: Hero (1800 in chips)
Seat 6: Villain (1470 in chips)
Hero: posts small blind 15
Villain: posts big blind 30
*** HOLE CARDS ***
Dealt to Hero [8d Ah]
Player 1: folds
Player 2: folds
Player 3: folds
Player 4: folds
Hero: raises 60 to 90
Villain: calls 60
*** FLOP *** [Ac Qh 8c]
Hero: bets 125
Villain: calls 125
*** TURN *** [Ac Qh 8c] [9h]
Hero: bets 235
Villain: calls 235
*** RIVER *** [Ac Qh 8c 9h] [2c]
Hero: bets 289
Villain: raises 731 to 1020 and is all-in
Hero has timed out
Hero: folds
Uncalled bet (731) returned to Villain
Hero is sitting out
Villain collected 1478 from pot
Villain: shows [Qd Jd] (a pair of Queens)

It seems that player's when posting hands tend to just post hands they’ve played well or when they've outclassed an opponent – very rarely do you see people post misplayed hands and explain their wrongdoings. I think part of the reason is poker players don’t like to admit their own mistakes so will often ignore them altogether or somehow seek false justification. Hell, I’ve even been guilty of doing that in this blog so far, so in today’s post, I would like to break down a hand I played recently where I arguably made a mistake and my opponent forced me off the best hand with a nicely timed river jam.

PRE-FLOP

So it’s folded round to me in the SB and I’m dealt A-8o. It’s early on in the tournament so I’m not gunning to play a big pot with this hand out of position but against a regular who is likely to attack passivity I see no other option than to make my standard 3x raise. This is preferred to 2.5xn since will lay him slightly inferior odds and at a positional disadvantage I would have no problem in ending the hand right here. My opponent calls however, and we’re off to a flop.

FLOP: Ac-Qh-8c

So, it’s pretty much as good a flop as I could have hoped for – we flop top and bottom pair and it’s time to build a pot. You’ll often see weak players check here because they want to “slowplay” their hand and get more value in the remaining betting streets. Not only is that flawed since if your opponent has a piece they may be willing to call a bet now meaning the bets going in on the end will be bigger, but you’re also allowing draws the option of a free card and so further missing out on value. Besides, if betting out is usually what you do when you miss then it only makes sense you c-bet when you hit – this is most likely to get action from your opponent’s entire range, and is the least suspicious way to play it since you would typically be betting missed hands on this board since it would appear to solidly hit your range.

I elect for an almost ¾ pot bet and my opponent calls. Even though we’ve flopped a very strong hand, there’s a range of flush draws/straight draws out there so this bet is preferred to around half pot and really anything up to 150 would be fine. At this point, his range is fairly open, he could have a pair of As, a Q (K-Q/Q-J/Q-10 most likely), J-10 for a double gut-shot and a flush draw. It’s possible he may float with air to attack passivity on the turn, although this particular opponent folds to flop bets 78% of the time so it’s more than likely he doesn’t have complete air as a float, especially on this board since it would appear to solidly connect with my range. Nonetheless, we can evaluate on the turn since it’s unlikely an opponent with such a high fold to flop bet would elect to float the turn to bluff on the river, especially this early on when excessive risks aren’t needed as such.

TURN: 9h

So, the turn is a 9 of hearts which is a decent enough card. There’s not many hands that we were ahead of on the flop but aren’t ahead of now – J-10 and A-9 would appear to be the only obvious ones. It’s more than likely he would 3bet pre-flop with a hand as strong as A-Q and he would most certainly 3bet any pocket pair that’s hit a set on this board, so the chances are we still have the best hand. Instead, it’s more likely he’s holding a pair of As, a Q or a flush draw (perhaps a flush/gut-shot combination like K-J/K-10 of clubs) so with this in mind it would seem like a good spot to bet again. As far as I can see, there’s 0 value to checking and giving draws the option of taking a free card, especially on this turn which brings a series of gut-shots for hands he may be holding like A-10/Q-J/Q-10. Besides, it’s tough to know what to do on the river if we check-call the turn and go on to face a big river bet – it’s usually much easier to know where you’re at/put your opponent on a range when you’re the aggressor so will make the hand easier to play for most part.

All things considered, I decide to stick in a bet of just over half pot, 235 into 430. This is fairly likely to get called by worse As whilst denies him the sufficient pot odds he needs to profitably call with a draw with just one card to come. With odds of 2.83 to 1, he’ll need at least 26% equity to call and flush draws will usually have around 20% equity with just one card to come whilst gut-shots will have considerably less. This bet will also set things up nicely for a reasonably sized river bet depending on what card comes. So, my opponent calls once more, and we’re going to a river.
RIVER: 2c

So, the river brings the 2c completing any flush draw so isn’t my favourite card. This leaves us in a rather awkward situation with 900 in the pot and stacks of just over 1k behind. We reasoned on the turn that we were ahead of a single pair of As and Qs so that remains true on the river whilst we’re now behind flushes as well as the J-10 straight. It therefore doesn’t seem very clear cut as to what's the best move between betting and checking, and if betting, the question remains, how much? Let’s think about the pro’s and cons of each move:

Betting

1.    A bet of ¾ pot or more would likely fold out any hand we’re ahead of such as a pair of As or Qs with the wet run out of the board, so would appear to destroy the value of our hand.
2.    A bet of any more than 500 will likely commit us to calling off if he shoves which we definitely won’t be too happy about.
3.    A blocker bet of around 1/3rd pot is much more likely to get paid off by a pair of As or Qs which may sigh call with overwhelming pot odds. However, this bet would also appear weak to a thinking player so this may encourage moves from worse hands and if so, will be very tough to call.
Checking

4.    There would be no issues in check-calling a fairly small bet since betting small would be totally fine and we would have good pot odds, but it will be unclear what to do when we check and face a big bet.
Given we could just as easily be behind as ahead here, we would rather avoid pot committal issues which removes options 1 and 2. This leaves us with the options of blocker betting around third pot or checking. In this instance, I elected for a blocker bet of 289 into the pot of 900 reasoning at the time my opponent is likely to pay off this bet with any pair of As or Qs with excellent pot odds and erring on the side of being tight was unlikely to raise as a bluff. That’s where my estimations of this opponent were wrong!

The outcome

My opponent stacks all-in, and I have to stick to my plan on folding vs a shove, and my opponent reveals Q-J for second pair turned into a bluff. Somebody got owned!

A lot of people may well question his play since Q-J would appear to be nothing than a bluff-catching hand on this river meaning his options would be limited to call/fold but it’s actually an excellent play. Once I bet 289 my opponent most likely reasons he’s behind in the hand – this means he would rather not reluctantly pay me off and lose more chips. However, he probably also reasons that a lot of my value hands are now sitting less pretty and this river card is an excellent card for him to rep as a bluff. It completes draws that from my POV he could be holding and moreover, is a scare card for many one and two pair hands I’ll be timidly value betting in this spot. After all, if I was looking for serious value on this river, wouldn’t I bet more? He probably expects me to bet more with my flushes/straights so the strength of my hand is  revealed to him by this bet. Whether he expects me to fold a hand as strong as A-8 remains unclear, but he has recognised I’m a good enough player who can fold strong hands when the situation is right so his estimations are spot on in this hand. Needless to say, if he tried to pull off this move against a loose-passive calling station it wouldn’t be very good since they would be unlikely to fold a hand like A-8 even on this board.

What’s particularly interesting about this river is if I check my opponent will most likely check since he’s ahead of all of my bluffs and can’t know I’m not planning a check-call, so for most part the action should go check-check and I should scoop the pot. Instead, I've bet and ended up not only conceding the money in the pot but also another bet to go along with it.
So where did I go wrong?

As we've addressed, when I’ve bet small against this type of opponent, he’s reasoned he’s behind but correctly interpreted the bet as weak/scared of the board run out and has turned a bluff catching hand into a stone cold bluff, so my mistake was betting so weak into a tight-aggressive regular who is thinking about what bet sizing’s mean and is capable of making moves when the situation presents itself. The mistake isn't necessarily betting but the bet sizing in this case. The bet of 289 really does appear weak and even if we made it 389 (adding on only an extra 100 chips) this may have dissuaded him from making a move as it appears that much stronger (it is conceivable we could bet this amount with a flush) and he would appear to have less fold equity on a shove.

So, the question remains: To bet or to check?

Of course, betting small does do well if he has a hand like A-J/A-10 or even A7< as he's unlikely to turn those hands into a bluff and instead pay me off, whilst loses the minimum to straights/flushes assuming we're still bet-folding so there is definitely a good argument for betting in this spot. Truth be told, the EV of betting and checking must be pretty close and it may well be betting is more +EV against mass tabling regs who are unlikely to turn their worse hands into bluffs and play more straightforward in this spot, whereas checking may be more +EV against a creative player with less tables who has more time to think through the situation. The bottom line is, if electing to bet you must ensure it's not so small that it appears really weak and defensive otherwise you're just leaving your opponent room for a move and you would be playing a guessing game calling off.

There is no doubt blocker betting against a loose-passive player who is very likely to pay this bet off with any worse hand and super unlikely to raise as a bluff would be the best move, and perhaps even against a tight player with no finesse moves. That more or less guarantees us value when we’re ahead and we can be fairly comfortable bet-folding knowing where we’re at – the same can't be said for when we're up against a creative, thinking reg. As it was, in the actual situation, I was unfortunate to run into that small part of my opponent's range that could be turned into bluffs, and was unfortunate my opponent made what in my opinion was an excellent shove. Of course, this wasn't helped by my super small bet which was a crying sign of weakness and so all I can do is kick myself and congratulate my opponent on a nicely timed move.

Live long and prosper

MikeyMcD45