WiltOnTilt will discuss key concepts related to the mathematics of No-Limit play using Powerpoint. Begin with the basics: probability and pot odds. Then follow Wilt to more advanced arenas: implied odds and reverse implied odds, software tools and mental shortcuts for equity calculations, complex EV calculations, and an exploration of fold equity. And watch this series conclude with a discourse on the ultimate in professional poker math: hand frequencies, valuebetting, and G-bucks.
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In the final chapter of Mathematics of NL Hold'em, WiltOnTilt dives into G-Bucks, some fundamental theorems, and touches on some basic game theory related to bluffing your opponents on the river.
Posted 10 months ago
tags: game theory wiltontilt nlhe no limit math mathematics bluffing unexploitable play ipod friendly
Micro/Small Stakes,
65 min long
Comments for Episode Eight
bottomset
there are only 12combos of AKo
so TT has 36.4% equity vs that range
Posted 10 months ago
WiltOnTilt
Exec Producerbottomset, I apologize for that mistake. ugh... not sure how I missed something so obvious there. Hopefully you guys can still learn from the methodology behind this example even though I mistakenly gave us 4 extra combinations of AKo.
Here's how the new math would look:
QQ = 6 combos, 82% equity
KK = 6 combos, 81% equity
AA = 6 combos, 81% equity
AKo = 12 combos, 43% equity
AKs = 4 combos, 46% equity
For a total of 34 combos.
Now set up the division to get the weighted average:
[QQ: (.82 * 6) + KK: (.81 * 6) + AA: (.81 * 6) + AKo: (.43 * 12) + AKs: (.46 * 4)] / [34 Total Combinations]
4.92 + 4.86 + 4.86 + 5.16 + 1.84 = 21.64
21.64 / 34 = 64% (rounded)
So our range of AK, AA-QQ has 64% equity against TT, so let’s check our EV:
EV = (total pot * our equity) – shove
EV = 415 * .64 – 200
EV = 265.6 – 200
EV = $65.60
So our range made $65.50 G-Bucks vs his call with TT. At least the math wasn't so off that it killed the example ;-) but it was a mistake nonetheless.
Good catch bottomset and thanks for watching.
Aaron
Posted 10 months ago
svidrigailov
Hey WoT,
Just wanted to say that I've really gotten a lot from this series and appreciate the work you've put into it. It's helped my fundamentals more than any other resource and the more advanced topics will certainly be useful as I'm getting out of the micros. Great job!
Posted 10 months ago
Fascist Baby
Yea aaron solid series and great last episode. You also come across as a very nice guy. Looking forward to the next series.
Posted 10 months ago
Millman123
Excellent series!!! One of best trainingvideos I have ever seen.
-Millman
Posted 10 months ago
WiltOnTilt
Exec Producerthanks guys, really really appreciate the kind words.
WoT
Posted 10 months ago
tjcs
Great series, thanks.
Quick question that might be missing the g-bucks point so forgive me in advance.
Re: G-bucks. It seems that as I tighten up my range in a position, the G-bucks would increase. I.E. if I only shove AA/KK in the UTG example, my G-bucks will skyrocket vs his call of TT.
However, it occurs to me that if I do so then the likelyhood of getting a call there by TT decreases.
It seems that including AK in the range decreases my G-bucks, but increases the frequency of call.
Using the example of an uber-tight range UTG just to understand this, especially as it gets into the more likely usage in river bet/bluff scenario. And how it relates to the importance of balancing my range to be sure it does include bluffs signifcantly enough.
Posted 10 months ago
WiltOnTilt
Exec Producertjcs, you're exactly right. When your range tightens it will increase the mistake a player makes by playing an inferior hand against you. Seems to make sense right? The stronger the hand I have, on average, the more of a mistake it is for another player to make a call against me without a premium holding. The opposite is true too, if they fold wayyyy too much, your G-bucks will increase when you turn more hands into a bluff.
I talk a little about this towards the end of the video when wrapping up the K4cc example and on that weird looking "mind game" slide. In that section I'm talking about the back and forth that good players will think about in terms of increasing and decreasing their ranges based on recent history and game flow. The same is true if people are using pokertracker stats to play against the tight shortstacker. They may see his stats as 12/8 nit but not know just how their hand stacks up against his UTG shoving range. If they did know how strong his range is, they probably wouldn't call with TT in that spot, etc.
So you are right, you have to think about the overall hand and each street's actions to develop a hand range, then on the river vs predictable players who you think can fold a certain subsection of hands (such as AJ- in the K4cc hand) you should be increasing your bluffing range against them to increase your G-bucks. Vs players who are good or better than you, you'll want to make more game-theoretic optimal bluffs, such as bluffing 30 of the 90 combos as I was talking about in the example so he can't gain a mathematical edge by either calling or folding. Vs other players who arent folding anything, you increase your G-bucks most by simply not bluffing at all and taking advantage of their propensity to call (such as the full house example in episode 7 where we overbet jammed).
Hope that makes sense, let me know if I need to clarify.
Aaron
Posted 10 months ago
tjcs
Perfect, thanks for the clarification.
I remember reading in an old 5-card draw book about similar formulas for balancing ranges, and when I saw the way you laid it out it seemed much clearer, and wanted to understand the effect of tightening ranges have not only on the calculations, but how it influences behavior to require them to call wider so we do get paid off. And how balancing it causes the overall $$ to increase even though in isolation a very tight range may seem like a better calculation.
I appreciate the tremendous effort that you put into this series and making the math more digestable.
Posted 10 months ago
WiltOnTilt
Exec ProducerThanks tjcs, glad you're finding it helpful :-)
Posted 10 months ago
paranoiD
really enjoyed ur series!
Posted 10 months ago
Philbet
Top series Aaron,totally differant to any other with some excellant mathmatical points, every no limit player will have benifited from this series of videos in some way, many thanks keep up the good work.
Phil
Posted 10 months ago
Mendez
Great series
A couple of questions:
1. Assuming your opponent is never going to adjust to what you do, and calls river bets slightly too much (slightly more than Game Theory Optimal), am I right in thinking that the best (maximally exploitative) strategy would be to NEVER bluff? And that in general terms if your opponent is veering slightly away from GTO the best way to exploit is not to veer the same amount in the other direction, but to go 100% in the other direction (again assuming that he never adjusts); and, therefore, the only reason for not doing this is if you think your opponent is capable of adjusting and would adjust if you went for a maximally exploitative strategy?
2. So G bucks is the EV of our range against villain's particular hand, and in both the examples in the video villain had a particular hand. But shouldn't we in fact be thinking of the EV of our range against villain's range (seeing as a lot of the time we can't put villain on one particular hand)? What kind of bucks are those?
As an example, I've been trying to analyze a hand I played the other day in a HU match where I raise with A7s on the btn, villain calls and donks into me on K54. I've got the NFD and an overcard so I raise, he calls, and then leads into me smallish me on a 3 turn. I've now got a gutshot as well so I shove. So I've been calculating my EV against his calling range, calculating how often he needs to fold, working out what his turn leading range is and what part of it calls my shove to see if I had the required FE. But after watching your video it seems I need to be thinking about G bucks. How would you go about analyzing a hand like this, just stick range against range into Pokerstove?
Posted 10 months ago
WiltOnTilt
Exec ProducerHi Mendez, great questions.
1. Yes, assuming your opponent never adjusts and always calls or always folds your maximally exploitative strategy would be to either never bluff or always bluff. I tried to mention something close to that effect in the video but I might not have said it clearly enough. In the K4cc hand, I felt like my opponent was good but not great, therefore I didn't feel like I could go 100% in either direction and therefore left myself a few bluff combos such that even when he did call my bluffs he was losing money.
2. Yes, the "next" step in the ladder of complexity in the real bucks -> sklansky bucks -> g bucks -> XXX bucks would be range vs range calculation. Unfortunately it gets a bit more complex to make this calculation. I thought about attempting to do a video on this for you guys and naming it after myself (lol) but it didn't materialize. Unfortunately calculating the EV isn't quite as simple as plugging in your range vs his range in pokerstove. I'd have to do some more thinking about how exactly we could accomplish that calculation, but just thinking off the cuff it would immediately be harder because of how each number of hand combinations would be different based on which hand it was matched up against in your opponents range. So if your range is {A, B, C} and opponents range is {D, E, F} and you tried to calculate the equities/hand combos, the number of combos of hand A could be different if matched up against opponent's hand D, E or F. See what I mean? I think theres probably at least one other level of complexity that isn't coming to mind right away that also would make the calculation harder.
In any case, I think G-Bucks gets you much closer to being "correct" than the standard sklansky bucks, but it also takes a great deal of self discipline to accurately identify what your true hand range is. For instance if I said I "never" bluffed in that K4cc spot then it makes my opponent's call look super super bad... but then I wouldn't be being honest with myself so the G-bucks calc would just be an exercise in whining...whereas if I'm accurately trying to determine how many bluffing combos I would have (for instance, by making the assumption that I check behind the turn x% of the time) then I can get a much clearer picture about what's going on.
So to kind of wrap it up, although it's important and kind of neat to see mathematically that even if he calls or folds we're still happy, vs a lot of opponents (especially at lower stakes) you're much better off by simply playing a maximally exploitative strategy wherein you either never bluff or always bluff vs a particular opponent because he will never adjust and/or can't read hands.
It's like I often tell my students during our coaching sessions: "It's OK to play your hand face up if your opponent is blind."
In your particular hand in question, if I was analyzing it, I would probably base my analysis off of the fold equity video where you give him a range of hands to donk/call flop then donk turn and figure out how much fold equity you need then figure out of the hand combinations he has in his range, will he fold often enough?
WoT
Posted 10 months ago
Mendez
Aaron, thanks for the response,
Re: my first question, maybe you misunderstood, or maybe I've misunderstood your answer. I wasn't talking about an opponent who always folds or always calls, but rather an opponent that does a mixture of the two but is still exploitable. Using Rock, Paper Scissors as an analogy, against an opponent who does Rock 36% of the time, Scissors 32% and Paper 32%, maximally exploitative strategy is for us to do 100% paper, isn't it? (Assuming he doesn't adjust).
I would definitely be very interested in seeing a video in which you explore range against range calculations. I think I understand the problem you outlined. Would this be an example: our range: QQ, JJ, TT, villain's range: AK, AQ. We calculate the equity of each of the hands in our range against villains range (So, QQ vs AK, AQ; then JJ vs AK, AQ; then TT vs AK, AQ). But then we come to weighting each of those equities to get the equity of our range against his range, we don't know how many combos of QQ to count because there will be less combos when he's got AQ? Couldn't we just say that half time he's got AK so we count 6 QQs, and half the time he's got AQ so we count 3 QQs, for an average of 4.5 combos? Or do we also have to take account of the fact he's not going to have AK 50% and AQ 50% because QQ is in our range, making it less likely for him to have AQ? Or is that already incorporated into the calculation when we calculate the equity of QQ vs AK, AQ?
Now I've totally confused myself.
Anyway, I'll look forward to hearing about W-Bucks in the future. Keep up the good work!
Posted 10 months ago
Mendez
OK- here's my attempt.
I thought it would be better to start with a very simple scenario, and one where we intuitively know the correct answer so we can check to see if the methodology is correct.
So, lets say my range getting it AI preflop is [AA, KK] and villains calling range is [AA, KK]. Intuition tells us that the equity of my range against his range must be 50%.
We know that the equity of AA v KK is 80%, KK v AA is 20%, AA v AA is 50%, and KK v KK is 50%.
First, take each hand in my range and see how it does against his range:
When I have AA, there are 6 combos of KK he can have, and one combo of AA he can have, for a total of 7 combos.
So equity of AA v [AA, KK] = 1/7 (0.5) + 6/7 (0.8) = 0.7571
When I have KK, there are 6 combos of AA that he can have, and one combo of KK, for a total of 7 combos.
So equity of KK v [AA, KK] = 1/7(0.5) + 6/7 (0.2) = 0.2429
Looking at our range only, there are 6 combos of AA and 6 combos of KK, so 50% of the time we have AA and 50% of the time we have KK.
So the equity of our range against his is:
50% x 0.7571 + 50% x 0.2429= 0.5
or 50%, which is just what we expected.
Now a more complex example:
my range: [AK, AA, KK] 28 combos
his range: [AK, AQ, AA, KK, QQ} 50 combos
AK v [his range] = 52% (using Pokerstove)
AA v [his range] =86%
KK v [his range] = 63%
[my range] v [his range] =
[6(0.52) + 6(0.86) + 6 (0.63)] / 28 = 0.6164
If I stick these two ranges into Pokerstove, I get the same answer. Doesn't Pokerstove get its results by running simulations? If so, can we not then see the Pokerstove result as an empirical confirmation of this method?
Posted 10 months ago
WiltOnTilt
Exec Producermendez, at first glance this looks solid. let me think about it some more when it's not 4:30am.
i'll get danzasmack (chuck) to try and weigh in as well
Posted 10 months ago
caracorules
You should make a video showing how we calculae our risk of ruin.
Thanks
Posted 10 months ago
EvilSky
Brilliant series m8, I learned a bunch of stuff I thought I already knew lol .
Also I love how it forces you to actually think about poker instead of just miming what somebody says mindlessly.
Posted 6 months ago
DeMonstrative
Just joined DC, and I really enjoyed Math #8. Great Job!
A few comments/questions:
1) Math is foundational in Hold Em'....I'd never argue that. However, I think one argument against the use of Game Theory (at least this type) is that although GT works well in a vaccuum, it doesn't account for metagame stuff (image, reads, game flow). You touch on this when you describe the back and forth constant re-adjusting top players make aginst each other as the game progresses.
So, even if you have, somehow, determined that it's profitable to river bluff an exact percentage of the time in one spot, first of all, you CAN'T, because it's impossible to bluff say 15% on this ONE hand...you either bluff or you don't.
Second, the sea of possible variables is too great and renders every situation completely unique and "this spot" will never come up again. So, maybe a better way to look at it is the expectation of a river bluff over a check.
The innate uniqueness of every hand could be why some high level players excel while knowing little math let alone GT.
2) The combinatorial analysis of the river bluff is very interesting and got me to thinking, that, although most players wouldn't phrase it this way, when staring at an all-in river bluff with AJ on the given board of Ac Tc 5d 9h 8d, what they should be thinking is "there's a lot of combinations that beat me".
So, it's interesting to consider the implications if your hand is 23o and the 8d on the end was the 8c, what would the effect be? Basically, an all in river bluff is saying "Now, there's A LOT of combinations that beat you."
Maybe that's why high-level guys bluff flushes a lot?
3) When calculating G-Bucks do we need an exact hand, or a range (in this case AJ or worse)? I know I'm not good enough to put someone on just one hand...so would it suffice to say top pair or worse?
4) I think you've just scratched the surface on GT and would like to see more!
- Thanks Again
Posted 5 months ago
WiltOnTilt
Exec ProducerHi DeMonstrative, nice post. I'll try to briefly comment on each of your points:
1) I'm not sure if you've watched all of the math series or just episode 8, but I do agree with you and I'm pretty sure I've made similar comments throughout the series on the usage of math, both strengths and weaknesses. I would never suggest that math is the end all, be all of NLHE and if I wasn't clear on that in the entire series or this episode then let me dispel that rumor now :-)
2) sorry but can you restate your question? i'm not really sure what you're asking here... your hand and the board cards will change the # of combos of bluffs and possible hands based on the range you're giving... it was never the intention of the video to suggest that people would be able to calculate all the combos in their head, but how the different cards can help you estimate the likelihood of the various hands.
3) In general standard ev calcs work for just your hand vs another hand or your hand vs a range (this has been covered a lot in earlier episodes...). you need g-bucks to look at your range vs their hand .
4) i am not at all a game theory expert, there are still some parts of "Mathematics of Poker" by chen and annkenman (fantastic book btw) that i don't fully understand, so i probably won't be doing a whole lot of GT stuff for that reason, and because it's hard to apply it correctly and usefully to a wide range of viewers...whereas I feel like the info i've talked about in this series of videos is both useful, applicable, and at a level of complexity that can be grasped by non-math majors.
Hope that helps...
Aaron
Posted 5 months ago
DeMonstrative
Aaron, thanks for your thoughtful reply.
1) We're definitely agreed here.
2) This isn't really a question, more of a concept for discussion to illicit your opinion.
I guess my point was that on the given board Ac 10c 5d 9h 8d, if the 8d is the 8c the number of combos that potentially beat the villian's AJo explode.
Therefore, drawing from your discussion of G-Bucks, if we bluffed with the same frequency (30 times I think it was) our G-Bucks earnings go up tremendously due to the added number of flush combos that beat the villian.
This means, one could achieve equivalent G-Bucks earnings by bluffing MORE OFTEN when the 8c hits the river instead of the 8d.
Conclusion: Bluff flushes on the end for added G-Bucks.
3) I'm asking if I wanted to calculate G-Bucks in-game, would I need to put my opponent on a single hand "he's got AJ" or simply say "he's got AJ or worse...I'm bluffing; because he can't profitably call my range."
4) Thanks for the advice, I'll try grinding through Mathematics of Poker.
Thanks for the discussion,
-TED
Posted 5 months ago
WiltOnTilt
Exec ProducerHey Ted, Ok I get your question now. Yes if you can credibly represent a flush, we can get our opponents to make much bigger g-bucks mistakes in theory, but we also have to consider that he might "polarize our range" in these type of spots and give us flush or nothing, which in some circumstances could reduce the number of combos we have.
Say for instance the board is 5c 8c Tx Jc Ax, because of the board texture we cannot have 45c,56c,89c,78c,JTc,QJc,AJc,ATc,etc etc Also if we don't fastplay the flop, he might not give us credit for any of the club combo draws like 67c,97c,TXc etc etc. So just consider those things before trying to bluff every flush, especially if you're playing against one of these 2+2 types that don't want to give you credit for value betting "thin" (ie, if you bomb this river, he's only going to say "flush or nothing" and remove all the 2pair and set combos as well).
#3 - G-bucks are primarily used as post game "how did he do vs my range" analysis because it's pretty darn difficult to put someone on an exact holding as well as mentally tabulating all those hand combinations. Ideally we would calculate range vs range (how does his range rate vs my range?) but that's quite a bit more complex and pretty impossible to do mentally.
Hope that helps,
Aaron
Posted 5 months ago
IceMaiden
Just signed DC. And luckly started with this series. It worth every cent I payed. Thanks a lot for tour time and good will. I tried to read nathematics of poker, and gave up to aply maths in poker besides pot odds.
U really enlighted the subject.
Congratulations.
hope n0whereman learned a lot with you bcause I had one session with him and hope to become his regular student... LOL
Posted 5 months ago
jimike
Yay!
Finished the series.
I really enjoyed it,your a brilliant teacher and presented the topics in a way the math illiterate like myself could understand.
I feel this series has changed the way i'm thinking about poker at the table and this is before i've even had the chance to go over my 80+pages of notes.
Well done sir!
Do you have any more series on the horizon?
Posted 4 months ago
WiltOnTilt
Exec Producerjimike - Thanks for the kind words. I really appreciate it a lot. I don't have any more math based series in the works (it was a ridiculous amount of work to do this series and took a tonnnnnn of time) but I have done a HU series with KRANTZ as well as a series helping small stakes 6max NL players. If you go to the search screen you can select my name in the "author" drop down and see the videos I've done. I'm planning to do some HU Duel vids soon as well.
Glad you enjoyed the series!
WoT
Posted 4 months ago
chads
Wilt, great video
Wilt & Mendez,
I'm interested in your dicussion about moving to the next step, to think about My Range vs. His Range:
1. My hand vs. His range = Sklansky bucks
2. My Range vs. His hand = G-bucks
3. My Range vs. His Range = XXX-bucks
As an aside, it seems G-bucks is really just a standard EV calculation when you switch seats and look at things from his perspective, and so doesn't "get you much closer to being correct" - it's just an evaluation of his play, rather than of yours. XXX-bucks is the real answer
Thinking in terms of XXX-bucks, if you have exactly the same ranges for pushing and calling respectively, your equity is the same. From the caller's perspective, he can actually take slightly the worst of it because of the money in the pot, and so can have a slightly WIDER CALLING range than your PUSHING range. Both ranges can widen the more already in the pot, but because he acts second villian can actually have the wider of the two (the reverse of normal gap-concept thinking)
So the real interesting question is:
- For a certain ratio of stacks to amount already in the pot, in the situation where you push with your range, if villain includes TT in his calling range would his calling range then be too wide wrt your push range to make it +EV in XXX-bucks?
Anyway, I'm not sure if I'm asking a question or making a comment, but really hope danzasmack/wilt/mendez say more on the subject...
Posted 4 months ago