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无限牌二十一点的预期收益

简介

无限牌二十一点的预期收益

下表显示了基于以下规则的二十一点玩法的预期回报:庄家在软17点停牌、一副无限牌、玩家分牌后可以加倍、除A牌外最多分牌三次、分牌时只抽一张牌。根据这些规则,玩家的预期值为-0.511734%。

要使用此表,请查找任何特定玩法的回报,回报最高的玩法即为最佳玩法。例如,假设您有两张8,庄家有一张10。停牌的回报为-0.5404,要牌的回报为-0.5398,加倍的回报为-1.0797,分牌的回报为-0.4807。因此,分牌8的损失最小,每1美元原始投注损失48.07美分,因此是最佳玩法。

站立

球员站立预期回报扩大

玩家的
庄家的明牌
2 3 4 5 6 7 8 9 10高手
0-16 -0.292784 -0.252250 -0.211063 -0.167193 -0.153699 -0.475375 -0.510518 -0.543150 -0.540430 -0.666951
17 -0.152975 -0.117216 -0.080573 -0.044941 0.011739 -0.106809 -0.381951 -0.423154 -0.419721 -0.478033
18 0.121742 0.148300 0.175854 0.199561 0.283444 0.399554 0.105951 -0.183163 -0.178301 -0.100199
19 0.386305 0.404363 0.423179 0.439512 0.495977 0.615976 0.593854 0.287597 0.063118 0.277636
20 0.639987 0.650272 0.661050 0.670360 0.703959 0.773227 0.791815 0.758357 0.554538 0.655470
21 0.882007 0.885300 0.888767 0.891754 0.902837 0.925926 0.930605 0.939176 0.962624 0.922194

球员击球预期回报扩大

玩家的
庄家的明牌
2 3 4 5 6 7 8 9 10高手
4 -0.114913 -0.082613 -0.049367 -0.012380 0.011130 -0.088279 -0.159334 -0.240666 -0.289198 -0.253077
5 -0.128216 -0.095310 -0.061479 -0.023979 -0.001186 -0.119447 -0.188093 -0.266615 -0.313412 -0.278575
6 -0.140759 -0.107291 -0.072917 -0.034916 -0.013006 -0.151933 -0.217242 -0.292641 -0.337749 -0.304147
7 -0.109183 -0.076583 -0.043022 -0.007271 0.029185 -0.068808 -0.210605 -0.285365 -0.319055 -0.310072
8 -0.021798 0.008005 0.038784 0.070805 0.114960 0.082207 -0.059898 -0.210186 -0.249375 -0.197029
9 0.074446 0.101265 0.128981 0.158032 0.196019 0.171868 0.098376 -0.052178 -0.152953 -0.065681
10 0.182500 0.206088 0.230470 0.256259 0.287795 0.256909 0.197954 0.116530 0.025309 0.081450
11 0.238351 0.260325 0.283020 0.307350 0.333690 0.292147 0.229982 0.158257 0.119482 0.143001
12 -0.253390 -0.233691 -0.213537 -0.193271 -0.170526 -0.212848 -0.271575 -0.340013 -0.381043 -0.350540
十三-0.307791 -0.291210 -0.274224 -0.257333 -0.235626 -0.269073 -0.323605 -0.387155 -0.425254 -0.396930
14 -0.362192 -0.348729 -0.334911 -0.321395 -0.300726 -0.321282 -0.371919 -0.430930 -0.466307 -0.440007
15 -0.416594 -0.406249 -0.395599 -0.385457 -0.365826 -0.369762 -0.416782 -0.471578 -0.504428 -0.480006
16 -0.470995 -0.463768 -0.456286 -0.449520 -0.430927 -0.414779 -0.458440 -0.509322 -0.539826 -0.517149
17 -0.536151 -0.531674 -0.527011 -0.522986 -0.508753 -0.483486 -0.505983 -0.553695 -0.584463 -0.557300
18 -0.622439 -0.620005 -0.617462 -0.615260 -0.607479 -0.591144 -0.591056 -0.616528 -0.647671 -0。626515
19 -0.729077 -0.728033 -0.726937 -0.725991 -0.722554 -0.715450 -0.713660 -0.715574 -0.729449 -0.724795
20 -0.855230 -0.854977 -0.854710 -0.854480 -0.853628 -0.851852 -0.851492 -0.850833 -0.849029 -0.852139
软12 0.081836 0.103507 0.126596 0.156482 0.185954 0.165473 0.095115 0.000066 -0.070002 -0.020478
软13 0.046636 0.074119 0.102477 0.133363 0.161693 0.122386 0.054057 -0.037695 -0.104851 -0.057308
软14 0.022392 0.050807 0.080081 0.111894 0.139165 0.079507 0.013277 -0.075163 -0.139467 -0.093874
软15 -0.000121 0.029160 0.059285 0.091960 0.118246 0.037028 -0.027055 -0.112189 -0.173704 -0.130027
软16 -0.021025 0.009059 0.039975 0.073449 0.098821 -0.004890 -0.066795 -0.148644 -0.207441 -0.165637
软 17 -0.000491 0.028975 0.059326 0.091189 0.128052 0.053823 -0.072915 -0.149787 -0.196867 -0.179569
软18 0.062905 0.090248 0.118502 0.147613 0.190753 0.170676 0.039677 -0.100744 -0.143808 -0.092935
软19 0.123958 0.149340 0.175577 0.202986 0.239799 0.220620 0.152270 0.007893 -0.088096 -0.005743
软20 0.182500 0.206088 0.230470 0.256259 0.287795 0.256909 0.197954 0.116530 0.025309 0.081450
软21 0.238351 0.260325 0.283020 0.307350 0.333690 0.292147 0.229982 0.158257 0.119482 0.143001

双倍的

玩家加倍预期回报扩大

玩家的
庄家的明牌
2 3 4 5 6 7 8 9 10高手
硬4 -0.585567 -0.504500 -0.422126 -0.334385 -0.307398 -0.950750 -1.021035 -1.086299 -1.080861 -1.333902
硬5 -0.585567 -0.504500 -0.422126 -0.334385 -0.307398 -0.950750 -1.021035 -1.086299 -1.080861 -1.333902
硬6 -0.564058 -0.483726 -0.402051 -0.315577 -0.281946 -0.894048 -1.001256 -1.067839 -1.062290 -1.304837
硬7 -0.435758 -0.359779 -0.282299 -0.202730 -0.138337 -0.589336 -0.847076 -0.957074 -0.950866 -1.130452
硬8 -0.204491 -0.136216 -0.066372 0.003456 0.087015 -0.187730 -0.451987 -0.718501 -0.746588 -0.810746
硬9 0.061119 0.120816 0.181949 0.243057 0.317055 0.104250 -0.026442 -0.300996 -0.466707 -0.432911
硬10 0.358939 0.409321 0.460940 0.512517 0.575590 0.392412 0.286636 0.144328 -0.008659 -0.014042
硬11 0.470641 0.517795 0.566041 0.614699 0.667380 0.462889 0.350693 0.227783 0.179689 0.109061
硬12 -0.506780 -0.467382 -0.427073 -0.386542 -0.341052 -0.506712 -0.615661 -0.737506 -0.796841 -0.829344
硬13 -0.615582 -0.582420 -0.548448 -0.514667 -0.471253 -0.587423 -0.690966 -0.807790 -0.867544 -0.880582
硬14 -0.724385 -0.697459 -0.669823 -0.642791 -0.601453 -0.668135 -0.766271 -0.878075 -0.938247 -0.931821
硬15 -0.833187 -0.812497 -0.791198 -0.770915 -0.731653 -0.748846 -0.841576 -0.948360 -1.008950 -0.983059
硬16 -0.941990 -0.927536 -0.912573 -0.899039 -0.861853 -0.829558 -0.916881 -1.018644 -1.079653 -1.034297
硬17 -1.072302 -1.063348 -1.054023 -1.045971 -1.017505 -0.966972 -1.011965 -1.107390 -1.168926 -1.114600
硬18 -1.244877 -1.240010 -1.234924 -1.230519 -1.214958 -1。182288 -1.182112 -1.233057 -1.295342 -1.253031
硬19 -1.458155 -1.456066 -1.453874 -1.451983 -1.445108 -1.430899 -1.427320 -1.431149 -1.458898 -1.449590
硬20 -1.710461 -1.709954 -1.709420 -1.708961 -1.707256 -1.703704 -1.702984 -1.701665 -1.698058 -1.704278
软12 -0.071570 -0.007228 0.058427 0.125954 0.179748 -0.183866 -0.314441 -0.456367 -0.514028 -0.624391
软13 -0.071570 -0.007228 0.058427 0.125954 0.179748 -0.183866 -0.314441 -0.456367 -0.514028 -0.624391
软14 -0.071570 -0.007228 0.058427 0.125954 0.179748 -0.183866 -0.314441 -0.456367 -0.514028 -0.624391
软15 -0.071570 -0.007228 0.058427 0.125954 0.179748 -0.183866 -0.314441 -0.456367 -0.514028 -0.624391
软16 -0.071570 -0.007228 0.058427 0.125954 0.179748 -0.183866 -0.314441 -0.456367 -0.514028 -0.624391
软17 -0.007043 0.055095 0.118653 0.182378 0.256104 -0.013758 -0.255102 -0.400984 -0.458316 -0.537198
软18 0.119750 0.177641 0.237004 0.295225 0.381506 0.219948 -0.029917 -0.290219 -0.346892 -0.362813
软19 0.241855 0.295824 0.351154 0.405972 0.479599 0.319835 0.195269 -0.072946 -0.235468 -0.188428
软20 0.358939 0.409321 0.460940 0.512517 0.575590 0.392412 0.286636 0.144328 -0.008659 -0.014042
软21 0.470641 0.517795 0.566041 0.614699 0.667380 0.462889 0.350693 0.227783 0.179689 0.109061

分裂

玩家通过拆分获得的预期回报扩大

玩家的
庄家的明牌
2 3 4 5 6 7 8 9 10高手
2,2 -0.084336 -0.015650 0.059088 0.151665 0.226890 0.006743 -0.176693 -0.386883 -0.507175 -0.433570
3,3 -0.137710 -0.056273 0.029932 0.126284 0.201318 -0.053043 -0.231843 -0.436607 -0.553507 -0.482405
4,4 -0.192325 -0.108712 -0.020395 0.081913 0.151377 -0.166452 -0.326068 -0.511152 -0.625044 -0.560206
5,5 -0.290154 -0.208718 -0.119335 -0.019231 0.045404 -0.293928 -0.454237 -0.634113 -0.729969 -0.668811
6,6 -0.212560 -0.119715 -0.021320 0.080912 0.153668 -0.264427 -0.425122 -0.610576 -0.716103 -0.653362
7,7 -0.131478 -0.043733 0.049255 0.146678 0.247385 -0.050148 -0.391981 -0.577584 -0.657268 -0.651641
8,8 0.073852 0.146187 0.220849 0.297475 0.409329 0.321042 -0.022736 -0.387228 -0.480686 -0.372535
9,9 0.195625 0.258548 0.323474 0.391987 0.471339 0.364837 0.234447 -0.078010 -0.317336 -0.136810
10,10 0.134774 0.212836 0.293403 0.380367 0.468117 0.296633 0.064443 -0.206733 -0.371278 -0.249494
A,A 0.470641 0.517795 0.566041 0.614699 0.667380 0.462889 0.350693 0.227783 0.179689 0.109061

以下是无限卡组的基本策略表。

无限牌和四副牌之间的唯一区别是,只有当庄家拿到软 17 点时,才能拿到软 13 点对 5 点,以及软 15 点对 4 点。

这些年来,很多人请求我提供我的电子表格。它已在Google 文档上公开发布。请注意,此文档允许无限次重新拆分,而上面的表格最多只能拆分三次(A 除外)。