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| Illustrious 18 |
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A term coined by Don Schlesinger to describe the 18 most advantageous deviations from basic strategy, based on the Hi-Lo count. The 18 plays described equal about 80% of the gain that could be had from playing the full set of indexes in more complex strategy tables.
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| Imho |
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The acronym for In My Humble Opinion.
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| Imo |
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Same as IMHO but not humble.
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| Implied Count |
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An educated guess used to modify play strategy as to the value of unseen cards in other players' hands based on the value of the dealer's card and cards taken or not taken by other players. For example, if the dealer has a stiff and a player hits a large card one can imply two extra low cards to modify play strategy.
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| Index Number |
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A term often used by counters to identify the count for specific strategy deviations. For example, the proper index number for standing on a hard 16 versus a dealer's 10 is 0, using the Hi-Lo count.
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| Insurance |
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If the dealer's up card is an ace (or ten as up card), he or she will call for insurance. When you place an insurance wager, you are betting that the dealer has Blackjack. To make an insurance wager, pace an amount, up to one half your original bet on the insurance line when the dealer calls for insurance. If the dealer has Blackjack you win your insurance bet, but lose your original bet. If the dealer does not have Blackjack, you lose your insurance bet and the game continues. Taking the insurance bet is highly advantageous to the house, unless the player is card counting.
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| Insurance Correlation (Ic) |
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"Insurance correlation" indicates how well the point count is able to convey information regarding when one should take insurance.
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| Insurance Efficiency (Ie) |
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A system's "Insurance efficiency" is the measure of how much the card counting system can gain if one follows its recommendation to take insurance in comparison to what could be gained by always taking insurance at the proper time.
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| Ip |
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The acronym for Imperial Palace, a casino.
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| Irc |
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1. The acronym for Initial Running Count. 2. The acronym for Internet Relay Chat.
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