Invisible Cuebids, Splinters, and Doubles
-----------------------------------------

This is an extension of "Unusual vs Unusual."  These can be used 
as a defense against any known two-suited overcall (say Michael's).  

The invisible cue bids work as follows:

	Bidding the lower known suit:	10+ hcp, support for partner
	Bidding the higher known suit:	10+ hcp, showing the "4th" suit 

The invisible splinters are:

	Jumping in the other suits:	10+ hcp, splinter w/ support 
	*Bidding the 4th suit:		10+ hcp, splinter w/ support
		[note: some may not want to play this as a splinter] 

An extension of this is: 
	Direct raise of partner:	up to bad 9 hcp, support
	Game raise of partner:		8-9 hcp, good shape 
	Directly doubling:		10+ hcp, good defense of their suits
	pass then double:		you could only double one of 
						their suits
	pass then raise:		up to bad 9 hcp, support, you might 
						have doubled the other suit


Examples:  [for these examples: 
	    michael's=  cue bid showing both majors  or  
			the other major and an unknown minor
	    2NT	     =  jump to 2NT showing 5-5 in the two lower unbid suits]

	part	opp	you
	1C	2C	2H	[2C is michael's] 2H shows good support
				for partner (ie 10+ hcp, 5+ clubs)

	1C	2C	2S	[2C is michael's] 2S shows 10+ hcp with 
				the "4th suit": diamonds. 

	1C	2C	3C	[2C is michael's] 3C shows 9 or less hcp
				and support

	1C 	2C	3H	splinter in hearts, 10+ hcp, support for clubs

	1C	2C	*2D	splinter in diamonds, 10+ hcp, support
			[note: some might play this as 6-9 with diamonds]

	1C	2C	x	you want to penalize their major suits
			[thus, if partner bids on partner shows either:
			a hand that cannot help you penalize them, or a 
			big hand that is looking for game] 
	

	1H	2H	2S	[2S is michael's] 2S shows 10+ hcp and 
				heart support

	1H	2H	3S	splinter in spades, 10+ with heart support

	1H	2H	3H	bad heart raise