Showing posts with label 2p2. Show all posts
Showing posts with label 2p2. Show all posts

Wednesday, September 29, 2010

DB Analysis vs. 3-bets by mpethybridge

By mpethybridge:
Using my DB as an illustration for how people ought to go about this analysis to determine their profitability in responding to 3-bets:

1. Note your Fold to 3-bet%:
(I'm a calling station, what can I say?)

2. Note your overall performance facing a 3-bet:



5. Note your win rate when you are NOT slow playing AA or KK by filtering them out--I call this my unsubsidized 3-bet calling win rate:


The standard for whether you are leaking playing back against 3-bets is NOT making a profit on the hand. If you fold, you lose 3 or 3.5 bb. Therefore, any strategy which yields you less of a loss than folding is a +EV strategy.

In PT this is a loss rate of -1.5 to -1.75ptBB/hand; in HEM, it is a loss rate of -300 to -350 bb/100.

Take a look through your databases in this way, as most of the micro players I have been doing DB analyses for are definitely leaking in one or more of these areas, as knn05 says is likely the case.

Monday, September 20, 2010

2009 Concept of the Week #4: Blind Stealing by Happy Pixel

http://forumserver.twoplustwo.com/78/micro-stakes-full-ring/concept-week-4-blind-stealing-419666/

Why should I steal blinds?
It's only 1.5BBs, why should I get involved?

Because 1.5BBs is a LOT OF ****ING MONEY!!!
For performing a single blind steal, you can win 1.5BBs (a successful steal equates to 75PTBB/100 which is a silly amount). Of course it won't work every time (nor should you steal at every single opportunity), but even when the blinds defend, you still get to play a pot post-flop with:
- Position (this is huge)
- Initiative
- Post-flop value

So you can often take down an even bigger pot on the flop with a c-bet (more on that later).
Stealing adds a TON to your bottom line.

I ought to say something on that note, about "stealing" with a huge hand. Suppose we are on the button with AA, and we have a fairly aggressive regular in the SB, who 3bets 8% facing a steal, over a decent sample. We have a bit of history, and he's 3bet our steals a few times. We've 4bet his re-steal with A4s once, and he snap-folded. So now we raise and he 3bets. What should we do?

Well, 4betting is bad. I know a lot of you are stuck in auto-4bet-get-it-in mode, but this is a spot where we should be flatting. His 3bet range here is really wide, and he's not prone to shoving over 4bets. Of course he's getting it in with QQ+ and AK here, but 4betting is also folding out a ton of worse hands which we want to keep in the pot. We have position and can play the hand much more profitably post-flop than pre-flop. We can induce huge mistakes post-flop, whereas by 4betting pre-flop we allow him to play much closer to optimally. Range manipulation ftw. Here's an example to illustrate:

Poker Stars $0.25/$0.50 No Limit Hold'em - 8 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com
Hero (CO): $49.75
BTN: $35.10
SB: $28.15
BB: $72.90
UTG: $50.60
UTG+1: $78.75
MP1: $50.00
MP2: $28.45

Pre Flop: ($0.75) Hero is CO with Kh Ks
4 folds, Hero raises to $1.50, 1 fold, SB calls $1.25, BB raises to $8, Hero calls $6.50, SB calls $6.50

Flop: ($24.00) 3s 3d Qd (3 players)
SB checks, BB checks, Hero bets $16.50, SB raises to $20.15 all in, BB raises to $36.65, Hero raises to $41.75 all in, BB calls $5.10

Turn: ($127.65) 4s (3 players - 2 are all in)

River: ($127.65) 9s (3 players - 2 are all in)

Final Pot: $127.65
Hero shows Kh Ks (two pair, Kings and Threes)
SB mucks Qs Jd
BB shows Ah Qh (two pair, Queens and Threes)
Hero wins $43.20
Hero wins $81.45
(Rake: $3.00)

Additional history is so situational that I can't really go into much detail about it. However, I will say that some regulars do exceedingly stupid things when in BB vs BTN or BvB situations. I've seen a lot of this (as Goldseraph calls it) "reg spite syndrome" at 50NL, and you should adjust accordingly. If you've seen that someone is going to be making moves more often post-flop and getting it in lighter, you should be willing to either tighten up your steal ranges or to get it in lighter post-flop to counteract their wider ranges. Figure out when they're spewing and take advantage.

What should I steal with?
Late position play is such a personal preference thing, and so situational, that I'm not going to construct exact ranges for you. If you are uncomfortable stealing with 95s, or if you suck direly post-flop, then don't steal with it, that's fine. However, I will give some general guidelines:

- Play really loose from the BTN. Abuse it. Play loose from the CO. Play tighter from the HJ. Hijack is getting towards middle position, and having two players to act behind you makes stealing a lot trickier.

- Pick hands that play well post-flop. This includes suited connectors, suited gappers, pocket pairs, suited broadways, strong offsuit broadways, suited aces... basically if something is s00ted you can't go too far wrong. If you're uncomfortable playing offsuit aces like A2o-A9o I suggest you avoid them. Personally I still steal with them.

- Against tight players, open up your steal range. Personally I steal with ATC against a lot of players. But stealing with 40% of hands from the button against tight blinds is still pretty respectable. Just see how much you can get away with (you'd be surprised). People just don't adjust anywhere near as much as you would expect. Ball till you fall.

- Against loose players, particularly ones who don't like folding post-flop, I'd avoid hands which have little top pair/middle pair potential, such as 75s. Because you're going to be seeing a lot more showdowns, you're going to be relying on equity and playability rather than fold equity. Weight your range towards hands that can flop decently with a high frequency. Against loose-aggressive blinds, you should tighten up your steal range (or just leave the table). However, against a loose-passive fish, you can play hands like K8o and Q9o profitably, since you will flop top or middle pair pretty often, and you can get a couple of streets of value out of them. Domination just isn't as much of an issue against someone who is playing 60% of their hands.

Also, against these kind of players, if you do happen to flop a decent (but not strong) draw, you can also check back the flop a lot and take a free card. 4 cards for the price of 3.

Bet sizing
So... here is something which for me is a big factor in blind stealing. When you steal a lot, it's a good idea to make your bet sizing a bit smaller. It gives you a better price on your steals. Split's probably done this already in his bet sizing post, but let's quickly run through the math behind this:

Assuming our hand has zero post-flop value (which it doesn't, of course):
- If we open to 4BB, we risk 4 to win 1.5, so we need our steal to work 73% of the time.
- If we open to 3.5BB, we risk 3.5 to win 1.5, so we need our steal to work 70% of the time.
- If we open to 3BB, we risk 3 to win 1.5, so we need our steal to work 67% of the time.
- If we open to 2.5BB, we risk 2.5 to win 1.5, so we need our steal to work 63% of the time.
- If we open to 2BB, we risk 2 to win 1.5, so we need our steal to work 57% of the time.

Another reason for making our steals smaller is that we have position. So we want the SPR (stack-to-pot ratio) to be higher, since we can leverage our position more effectively post-flop. A smaller raise size accomplishes this.

Also, a quick note about exploitative bet sizing: against unknowns and unobservant fish, you can open larger with your better hands, since they don't know or don't care what your standard late position open is. Flex your bet sizing (to reassert your dominance).

Stack sizes
Pay attention to stack sizes. If you're deep with one of the blinds, you can steal liberally (especially with suited cards). You have higher implied odds and it's a nightmare for your opponent to play OOP while deep.

Versus shorter players, you can tighten up if they're a push-or-fold short stack, or open lots of high-card hands like Q9o if they're loose. Then flop TP and get it in. Profit!

By HappyPixel


Additional posts: #35

Sunday, September 19, 2010

Note Taking

http://archives1.twoplustwo.com/showflat.php?Cat=0&Number=6331669&an=0&page=2#Post6331669


"Falls in love with TPTK"
When I see someone going to town with TPTK, especially if it's all-in, more than once, or against a good player, I know I need to make two adjustments:
- Bluff less
- Value bet two pair or better VERY hard

"Minbets are weak"
This note is a terrific opportunity to sort value bets from bluffs. If villain makes a tiny bet, I can punish with a float, a bluff-raise, or a slowplay, and I can do it with confidence.

"Positionally unaware"
This warns me not to treat LP bets as light, and can save quite a bit of money in blind defense situations.

"Likes to test preflop raises"
A class of player enjoys calling preflop raises OOP and then leading any flop. These players are so exploitable it's beautiful: you should frequently bluff-raise with air and slowplay with any made hand.

"Overvalues draws"
Make those flop and turn bets larger, but be afraid of scare cards on the river: there's no crime in check/folding when the obvious draw hits against this player.

"Defends blinds excessively"
Steal less often, but steal harder: bigger flop bets, second barrels, that sort of thing. 

By Pokey



Note Taking - Abbreviations
LRR - limp re-raises
BISK - bluffs if shown weakness post-flop
BRISK - bluffs river if shown weakness
TRP - trappy post-flop (c/r, floats, etc)
CR - Check raises frequently
DNB - do not bluff
DBS - donk bets strong
DBW - donk bets weak
MRS – min-raises flop strong
MRW – min-raises flop weak
SCBW- small c-bet weak
SCBS- small c-bet strong
PDA – plays draws aggressively
PDP – plays draws passively
ISOL- isolates limpers
ISOI- isolates isos
NPA – not positional aware
SS – short stacker (maybe note stack size)
NPND – no pair, no draw
CFTP – can’t fold TP
FOF – fit or fold
SOL – stacks off light
CDL – calls down light
SOOT – loves any two suited
FC – flush chaser
SDV – showdown value
CRW – c/r weak hands

Board texture:
Axx – board with A high and two random unconnected cards
425s – two tone or suited
425m – monotone
425r – rainbow
425s9s – turn completes suit
4259ss – double suited board Color Code:
Green – fish
Dark Purple – big fish
Orange – good regular
Dark Blue – regular
Yellow – all around nit
Pink – short stacker
Red – very aggressive

(?) after note to mark suspicion
?-?-blank-!-!! as a confirmation of a suspicion and how strong the read is 
Notes to take:
• Ranges in different spots post-flop (polarized vs balanced)
• 3b frequency and range (polarized, unpolarized, clueless, SCs, etc.)
• Positional awareness
• What level opponent’s are thinking on?
• Exploitable tendencies
• Bet sizing
• Timing tells: tank/check/shove, tank/bet, etc
• How they play: draws, board texture, second pair type hands, monsters, etc
Line w monster on dry/wet boards
Line w draws
Line w TPMK, especially as aggressor IP (pot control wet boards? on turn? riv?)

Example of good notes:
• called 3x pfr oop, led 3 streets w 4 high NPND (bet sizes could make this better)
• r/f 12bb co vs bb
• l/c w 97s 14bb EP, shove Q29r
• call iso w 64o
• flat 3b oop w 25bb, c/f KQ8
• min rr AA
• complete 72o (atc)
• one and done (good float candidate)
• SOL (type of hands: TPTK, TPNK, OP, etc.)
• calls 3b oop w KTs
• called pfr from bb w AK, c/c Kxx, v-bet riv (again, bet sizes could make this better)
• value checks riv
• db (s/b) (w/s) (small/big) ( weak/strong)
• limp rr EP w xx. Flop J high FD, c/c flop and turn w no plan
• flop c/r or raise range (TPMK-GK?, TPTK+?, polar?, depends on board texture?)
• floats w no plan 

Example of notes from GC’s ep3:
• 12-09 NL100 6m (he starts with day, stakes and game everytime)
• limpfolds (use l/f if easier)
• betsize w TPTK on Q8385. 3-7.5, 5-13.5, ck.
• thinks c/r = FD
• saw me c/r gutter as pfr in bvb
• 3b sb vs btn and gave up on Q82r
• bvb, call 3b OOP and c/r KT4s. 35-10-17 (35=c/r size, 10=bet size, 17= pot size)
• Cc 3b w SS, db Qxx
• defend sb vs btn, c/mr J64s
• c/c, x/x, overbetjam 984T8 (overbetjams huge hands?)
• open shoved riv twice
• uses auto buttons
• c/tankcall trips?
• Cb 8-10, 18-27 w AA on KQ8s5
• Tb 8-14 in bvb on Qxx as bluff (Tb = 2 barrel)
• psb turn and riv w 99 on T32s8
• SS flat minpfr bvb w Q6s, flat 733, bluff off stack on turn when ck to
• underbets for value w invulnerable hands? psb for value w vulnerable hands?