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Detail specifications 67D4 - Level 1 ★
The rule of 11
The rule of 11 with the opps leading 4th best against a NT contract
This rule aims to determine the number of higher-ranking cards held by a hidden hand. It can be used by the declarer as well as by the opening leader's partner. Ror the declarer, for example he need to substract from 11 the vcalue of the card lead to know how many cards above it are held by the remaining 3 players. For example, You South are the declarer on a 1 NT contract. The leader, North leads the 5 of ♠. How many spades higher than the 5 does East hold?
There are 11 - 5 = 6 cards higher than this 5 of spades between East, West, and South. Your side has 4 (Ace, King, Jack, 7), so Sud has 2!
This rule aims to determine the number of higher-ranking cards held by a hidden hand. It can be used by the declarer as well as by the opening leader's partner. Ror the declarer, for example he need to substract from 11 the vcalue of the card lead to know how many cards above it are held by the remaining 3 players. For example, You South are the declarer on a 1 NT contract. The leader, North leads the 5 of ♠. How many spades higher than the 5 does East hold?
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Verification : There are 9 cards in ♠ higher than the 5 (A K Q J 10 9 8 7 6). North, that lead 4th best has 3 , so your camp has : 9-3-4=2
Check with all four hands: South indeed has 2 cards higher than the 5 of spades, the 9 and the 6.
Check with all four hands: South indeed has 2 cards higher than the 5 of spades, the 9 and the 6.
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