The Canfield Master Count system is the harder version of the Canfield Expert system. This one is a multi-level card counting system set at Level 2 and is also classified as advanced. This level II system means that the indexes range through a greater number of values such as (-2,-1,0,+1,+2). Because of this, it is obviously much harder to learn and is more complicated because players need to memorize a greater index. Although, the difficulty is still intermediate because this is a balanced system, which means when you start the count at zero on a freshly shuffled deck, your count should also be zero at the end of the deck after all the cards have been dealt. This makes it easier to learn since you can know for sure if your count is accurate after going through a whole deck.

Canfield-II算法比Canfield-I难，属于中级算法。中级算法意味着将使用到更多的计算值，比如-2、-1、0、+1、+2，因此也更难学习掌握。不过，这还不是最难的，毕竟这还是一种“平衡”算法（由零开始、到零结束）。

The Canfield Master actually has the same efficiency as the Expert methods but it does have a much higher betting and insurance correlation percentage【这句不明白】. This is one of the big benefits of using a more advanced count but you need to sacrifice ease for better odds and more advantage over the house. Just like the Expert style, the Master count was invented by Richard Canfield, a former pit boss who worked at casinos and wrote the book “Blackjack Your Way to Riches”. Canfield Master Count is what actually lead up to the Bryce Carlson’s Omega II count system where the indices of both systems are virtually identical.

高级算法学习起来比较难，但它可以帮助你获得更好的的赔率以及提高你对庄家的优势。和Canfield-I算法一样，Canfield-II算法也是有Richard Canfield——曾经是某个娱乐场的现场经理，也是“Blackjack Your Way to Riches”一书的作者——发明的。Canfield-II算法后来由Bryce Carlson改进为Omega-II算法，你会发现，这两种算法的计数值表几乎完全一样。

Canfield originally designed this system for single deck blackjack in the 1970s but as time went on and casinos cracked down on card counters, a one deck hand dealt game is very rare to come by. You will find many 6:5 blackjack odds tables with single decks but the 6:5 odds are a scam and i t’s just not worth playing since multiple deck 3:2 games will offer better odds with card counting anyways. The Master count lost popularity as more decks were increased to the shoe but it is still powerful if you can find a single deck game or even two decks.

Canfiled算法是在1970年发明这种算法的，当时是用于一副牌的，而现在几乎已经没有地方是使用一副牌的了。也许你会找到一副牌的娱乐场，不过玩家黑杰克的赔率是6赔5。但我要告诉你的是，绝对不要去玩这种游戏，因为在多幅牌（玩家黑杰克3赔2）中，使用了算牌方法，可以获得比单副牌（6:5）更高的获胜率。随着牌盒中牌副数的增多，Canfield-II算法也逐步退出舞台了；不过，如果你现在还能找到一副牌或两副牌的游戏，使用这种算法还是很有效果的。

The indexes are displayed in the table below in chart format. When viewing the left column, this shows what value of cards in the deck while the right side of the chart shows the index or distribution of count values assigned to each card.

这是Canfield-II算法的计数值分配表：

The goal is to watch the cards that are dealt to all players and to the dealer. Then you need to add up the count numbers in your indexes. For example, if two jacks and two kings are dealt in a hand, your running count would be -8. The main strategy and method with all counting systems is to bet high when the count is high, which correlates to more high valued cards such as tens in the deck, which benefits you more than the dealer in terms of probability odds and advantage edge. Likewise, when your count is low or negative, you will know when to tame your betting down a notch.

举个例子，如果桌面上出现了2张J和2张K，那么你的计数值应该减去8（J和K的计数值都是-2）。当你的计数值足够高的时候，比如10以上，那么就应该增加你的下注额；反之，则应该减少或者不下注。