Bridge Game Tips: Improve your Bridge Game by Understanding The Suit Quality Test

Posted 22 April 2009 by Ron

The Suit Quality Test guide measures how strong a suit you hold. The Suit Quality or SQ often decides whether the suit is strong enough to bid at a given level. Useful just about whenever suit quality is a relevant criterion, it is useful for pre-empts, weak twos and overcalls. The SQ determines whether you can afford to insist on your suit as trumps.

Count the number of honours in the long suit and then add the total number of cards in the long suit. The answer is the SQ of that suit. For example, Q-8-7-4-2 has 1 honour and 5 cards. 1 + 5 = SQ of 6.

The SQ should equal or exceed the number of tricks for which you are bidding for an overcall. With an SQ of 6, such a suit is not good enough for an overcall even at the one-level (seven tricks requires an SQ of 7). K-J-9-5-4 has an SQ of 7 (2 honours + 5 cards). That is good enough to overcall at the one-level (assuming you have enough extra strength) but not strong enough for a two-level overcall.

Count the J or 10 as an honour card for the SQ Test only if you also hold a higher honour in the long suit.
J-8-5-4-3-2 has an SQ of 6. Do not count the jack if you have no higher honour.
K-J-8-4-3-2, however, has an SQ of 8. The jack is full value as an honour because the king is also present.

The Rule of 10 is a useful product of the Suit Quality Test. You may insist on that suit as trumps if you have a suit with an SQ of 10,. For example, suppose you hold:
A 3
K Q J 10 6 4
8 7
Q 3 2
Partner opens 1 , you bid 1 and partner rebids 2 . What now?

The heart suit has an SQ of 10 (4 honours + 6 cards). Therefore, you should insist on hearts as trumps and jump to 4 . Even if partner is void in hearts, chances are you will lose only one trump trick.
Change the hand to:
A 3
K Q 8 6 4 3
8 7
Q J 10

Now, after 1 : 1 , 2 , you should bid only 3 . That is a strong rebid and shows six hearts, but the suit needs support from partner. You would not fancy being in 4 opposite a void or low singleton.

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