Defence to 1NT

Page 6

by David Stevenson

This article is continued from here

Any defence to 1NT is permitted at ACBL MidChart and EBU Levels 4 and 5 (and the former Level 3, and Level 2 in fourth seat or after passing), so all of the following are permitted. The chart below also shows which defences are permitted at ACBL GCC, and EBU Level 2 (second seat).

Pages 1 to 2	Double is for penalties, 2/ are natural.
Page 3	Double is for penalties, 2/ show 2-suiters.
Page 4	Double is for penalties, 2/ show varied hands.
Page 5	Double shows a one-suited hand.
Page 6	Double shows a two-suited hand, 2/ are natural.
Page 7	Double shows a two-suited hand, 2/ show varied hands.
Page 8	Double shows a varied shape hand, 2/ are natural.
Page 9	Double shows a varied shape hand, 2/ show varied hands.

Note that or + means diamonds or the majors, and not a red suit plus spades, which would be expressed as / + .

If you want to print these diagrams see here for a printer-friendly set of pages without all the headings, and with only two diagrams per page.

Name:	Minor-Suit Hamilton	RCO [Strong NT]	CRASH	CHASM
Dble	+ /	+ or +	+ or +	+ or +
2	+ /	+ or +	+ or +	+ or +
2	+	+ or +	+ or +	+
2
2
2NT	+ or + / [strong]			+
3
3
ACBL GCC:	Yes			Yes
EBU L2:	Yes

Name:	Sahara	Bennion	Wright Grano-ASTRO Lionel	Modified Lionel
Dble	+ /	+ / or +	+ //	+ //
2	+ //	+ //	+	+ /
2	Any 3-suiter		+	+
2
2
2NT	+	Strong, balanced	+	Strong 2-suiter
3
3
ACBL GCC:		Yes	Yes	Yes
EBU L2:			Yes	Yes

Name:	Pagan	Modified Pagan	WINDA	Roth
Dble	+ //	+ //	+	+
2	+	+ /	+ /	+
2	+	+	+ /	+
2
2
2NT	+	Strong 2-suiter	+	6/ + 4
3				+
3				+
ACBL GCC:	Yes		Yes	Yes
EBU L2:	Yes	Yes	Yes	Yes

Name:	Mini-Astro	Vertigo	DONT NO	Meyerson
Dble	+ /	4 + 5// or 4 + 5// or 5 +	+	/ + /
2	+ /	+ 5/	or + //	+
2	+	+ 5/	or + //
2
2
2NT		+	Strong 2-suiter	+
3
3
ACBL GCC:	Yes	Yes	Yes	Yes
EBU L2:	Yes		Yes

This article continues here

Editor's note:

• If you want to comment on this article, why not write direct to me, David Stevenson? I shall be pleased to hear from you!
• Chris Ryall discusses 1NT philosophies

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