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本帖最后由 Howard 于 2010-9-13 01:05 编辑
9月份本地火湖赌场开出一项独特的21点促销手段。每盒6副牌中插入3张Joker,此3张Joker算作Wildcard,你必须先要指定它用作什么牌,然后再决定Hit/Stand/Double等等。如果dealer得到了joker,就算做一张废牌。
我计算出来的玩法如下:(基于basic strategy,不算牌的)
When you have the joker in your first two cards:
1. Joker + (2 to 7), make it total 11, then double. Exception: Dealer facecard Ace, then you make it 11 and hit.
2. Joker + 8. if dealer shows 2-6, or Ten, you make it 11 and double; if dealer shows 7/8/9/Ace, you make it total 19 (by calling your joker an Ace) and stand.
3. Joker + 9. Make it 20 in all cases, even the dealer shows 5 or 6.
When you have the joker in the 3rd card or later:
1. Joker + (2 to 6), make it total 11, then hit.
2. Joker + 7. make it total 11, then hit. Exception: if dealer shows 7, then make it 18 and stand.
3. Joker + 8. make it total 19, then stand. Exception: if dealer shows Ten, then make it 11 and hit.
4. Joker + 9, make it 20 in all cases.
Edge如果仍然不算牌,假设基本策略的edge是-0.5%,我觉得3个joker可以达到3.5%左右的优势。而且这个优势非常可能再次利用,比如当牌发了一半仍然没有出现joker,意味着剩下牌中joker密度加倍,优势就到了6%左右,这时候可以增加赌注。
(策略计算基于http://wizardofodds.com/blackjack/appendix1.html的信息) |
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