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知其然不知其所以然
I don't understand how the odds was calculated but I disagree with the lists how the small pairs got put so high in the rank.
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i.e.
20 44 0.455
21 KQS 0.435
I would be much more willing to push with KQs than 44. The reason is based on the % of hands that completely dominate you. you push with KQs, the only hands completely dominate you (>75% chance beats KQ) are AA KK AK QQ AQ, 5 hands. All other hands are more or less coin flips or the hands you dominate against KX QX. On the other hand hands like 44 55 you have so many hands completely dominate you, all the bigger pairs. The other hands, are more or less coin flips. When you are pushing with a hand that could have larger % of hands dominates you, you are putting your tounament life at risk much too often. To me KQ is just as good as AK and AQ, only slightly worse.
The same reason why A 5 is no good either. when you push with A 5, you got even more hands that dominates you. all A X when X>5. All larger pocket pairs AA-66. There are way too many hands dominates you. Not as good a hand to push as KQ KJ.
Simply put, when you push with a hand and gets called. The cards flip over, you tell yourself, "oops, i wish i hadn't pushed" The more % of times this could happen to your hand, the less appealing for you to push with that hand. It is fair to say, you always wish that you hadn't pushed your hands against a hand that domintes you >70% chances
你的质疑很有道理,最后一段的逻辑我也非常同意。但是,仅仅凭估计,不如详细的把他们列出来算一算更精确一点。咱就说说KQs对44吧。
的确,KQs被dominate的牌只有5手,也就是你说的AA KK AK QQ AQ。如果你有KQ并open push的话,别人这5手牌总共有28种可能。如果你有44呢,所有overpair共有60种可能。从这个oops牌的角度讲,的确44不如KQs。
在我假定的range中,44和KQs喜欢见到的牌(Yeah牌)都不算多,44喜欢见到A4s, A3s, A2s, 33, 22一共5手牌22种; KQ喜欢见到的更少,只有KJs, QJs两手牌6种。在Yeah牌方面,44占优。
但是光oops牌和Yeah牌并不能说明全部问题,还有Hmmm牌。KQs对于任何Ax和小对都是underdog。有的厉害一点,比如对相同花色的A9s,可能只有40%;有的轻微一点比如对33,有49%。综合起来,可能有46%左右。在我文中假设的calling range中,Ax和小对占据了多半的江山。KQs对这多数的Hmmm牌是46%。而44呢,除了对overpair 60手牌不利之外,对那个range中所有其他的Hmmm牌(range中并没有JTs,我假设他不会拿JTs跟一个open raise)都略占优势,就算54%吧。
如果你长期打比赛,这54%对46%的差距一定能从你的收入中反映出来。但是人脑多半会把所有45%-55%的概率都归于“还好”,并不太在意之间的差距,哪怕他们大部分的时候会发生;而把70%对30%的概率加以夸大,哪怕他们只有少数情况会发生。
我的计算过程是基于如下假设的:你先open push,有且仅有1个对手可能会call,他的calling range如该文所述,是any Ace except A6o-A2o, any pair or KQs, KJs, KTs, QJs。你的EV是你的牌根据这个range的EV。Range中考虑了权重,比如你KQ,那么对手AK就只有8个组合,而不是16个。
当然,这个计算结果是严重依赖于对对手calling range的假设的。如果从range中除去A4s - A2s,除去33,22;那么44将落后于KQs,毕竟他们本来也就仅仅差一点点。你要说你的对手根本不会拿33去跟open push,那么你可以修改range,我可以根据你修改了的range重新计算。但是我想要说的是,无论你怎么改range,计算出来的结果总会有一小部分跟直觉相违背,这个在所难免, 因为直觉是难以面面俱到的。 |
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