Thorp’s ten count strategy

Thorp later discovered that adding four 10-value cards to a deck further increased a player’s chance of winning their next hand by 1.89%. He proved that the greater amount of 10-value cards in a deck the greater their chance of winning.

The 10-count system tracks only two types of cards: the 10-values (of which there are 16,) and the non-10-values (of which there are 36.)

The neutral condition of an un-played deck is calculated by dividing 36 by 16, and equals 2.25. Once this value drops to 1.0 i.e., an equal number of 10s and non-10s, the player’s advantage is increased to 9%. By ranging bets in accord with this advantage, a player can make potentially huge profits. This system has the additional advantage of informing a player when to take insurance (whenever the ratio drops to 2.0).

Like its predecessor, Thorp’s-10 count system unfortunately has major disadvantages. Not only does it fail to account for he importance of the Aces, the 10-count system is extremely difficult to memorise, and should therefore be adopted only by players with considerable mathematical ability.

Although a potential money-spinner in the few single deck games on offer today, the inherent difficulties of learning and memorising the 10-point system make it accessible to few players. The speed at which Blackjack is played exerts too great a pressure on a player’s mathematical skills to make this system viable.

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