Example 1 North opens 1♦
Ideal hand for an Overcall at the 1level : 1♥
East has a hand of 9½ points, including five hearts headed Q 10 and suit quality (SQ) of 7.

 East
♠  K 6 3
♥  Q 10 8 6 4
♦  9 5
♣  K 5 3


Example 2 North opens 1♠
Same hand as in Example 1, but now East would have to overcall at the 2level. This requires 11+points and a SQ of 8. East's hand has neither and therefore should Pass.

 East
♠  9 5
♥  Q 10 8 6 4
♦  K 6 3
♣  K 5 3


Example 3 North opens 1♠
This hand is strong enough to Overcall at the 2level and the hearts SQ = 6 + 2 = 8 Therefore East can Overcall 2♥.

 East
♠  9 5
♥  Q 10 9 8 6 4
♦  K Q 3
♣  A 4


Example 4 North opens 1♠
East has 12½ HCP, an unbid 4card major and shortage in Opener's suit East therefore makes a Takeout Double.
Partner should respond bidding ♥ if he holds 4 cards in that suit.

 East
♠  9 5
♥  K 10 9 8
♦  K Q 3
♣  A 7 6 2


Example 5 North opens 1♦
East has 12½ HCP, both unbid 4card majors and shortage in Opener's suit East therefore makes a Takeout Double.
Partner should respond bidding his 4card major suit if he holds one.

 East
♠  K Q 9 5
♥  K 10 9 8
♦  8 3
♣  A 7 6


Example 6 North opens 1♥
East has strength in Opener's suit and no 4card spade suit. He should therefore Pass.

 East
♠  K Q 9
♥  K 10 9 8
♦  8 3
♣  A 7 6 5


Example 7 North opens 1♥
East has 1618 points, is balanced and has two good stoppers in the Enemy suit. He Overcalls therefore 1NT.

 East
♠  K 9 8
♥  K J 9 4
♦  A 10 3
♣  A Q 9

© 2013 Michael Furstner
