Citrus Bridge, ,

                                              West      North     East      South
North                                                                    1C         1H               South
SKQxx                                    Pass       2C           Pass      2H                Sxx
HKxx                                      Pass       Pass          Pass                          HAQJ10x
DQx                                                                                                        DKxx
CJxxx                                                                                                      Cxxx
North has a hand that is worth a limit raise, and enough to invite to game opposite an opening bid. There are two disadvantages, however, to getting the partnership to 3H opposite an overcall:
                  * If the overcall was based on minimum values, the partnership might get too high.
                   * Without a specific partnership agreement to the contrary, a new suit by the advancer is not forcing. If North were to bid 1S, intending to show heart support later, South might pass, and the heart fit would be missed.

On the plus side, the opponent’s opening bid has made one call available as a forcing call: a cuebid of the opponent’s suit. The cuebid is forcing and shows interest in reaching game. The cuebid can cover a wide variety of hands for advancer, but one possibility is three-card or longer support for the overcaller’s suit and game invitational values.

If North cuebids 2C in response to the 1H overcall and east passes South will simply rebid 2H with a minimum for the overcall—less than an opening bid. North passes this rebid.

                                                West      North      East      South
North                                                                     1C          1H                    South
SAKxx                                     Pass         2C         Pass        2D                    Sxx
HKxx                                       Pass         3H       Pass        Pass                  HAQJ10x
DQx                                         Pass                                                              DKxx
CJxxx                                                                                                            Cxxx

Now North has an opening bid, East however, is the dealer and opens 1C, with South overcalling 1H. North’s cuebid shows a limit raise or better, as in this case. North rebids to show his minimum and North takes one more try at game. South will likely pass the invitation. Nine tricks is the limit.
Suppose East bids 3C after North’s 2C cuebid. In that case South should pass to show his minimum and North makes one more try for game. South will likely pass the invitation Nine tricks is the limit

On this hand with in interest in reaching game, North cuebids 2C, South can't be sure exactly what North has in mind so with more than a minimum overcall, can show a second suit, bidding 2D. North bids 2H to show his limit raise, and South bids the game. If East had opened 1S, South would bid 2H and South would cuebid 2S to show his kimit raise, thenSouth should bid game. A raise to 3H initially, would show only 8-9 points.

With the above auction, North--South should take 8 tricks. If North had jumped to 3H the partnership would be too high.

Note: In a competitive auction, there would be nothing wrong with getting to 3H, East--West can probably make nine tricks in diamonds

With the cuebid available to show a fit and interest in reaching game, the advancer doesn't need to jump to the three level to show a limit raise with 4-card support. That frees up the jump raise for other purposes.