Defence to 1NT

Page 5

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:	DONT Bergen	Mod DONT	Brozel	Mendelssohn TIZI
Dble	or or or	or or or	or or or	or or or
2	+ //	+ /	+	+
2	+ /	+ /	+	+
2	+	+	+	+ /
2	[weak]		+ /	+ /
2NT		+	+	Strong 2-suiter
3			+ +	Weak,
3			+ +	Weak,
3			+ +	Weak,
3			+ +	Weak,
ACBL GCC:	Yes	Yes	Yes	Yes
EBU L2:

Name:	Scorrcho	Toss	WIND	WONT
Dble	or or	or or or	or or or , fair suit	or or or
2	5 + 4/	5 + 4//	+	+ /
2	5 + 4/	5 + 4//	5/ + 4/	+
2	5 + 4/	5 + 4//	, poor suit	+
2	5 + 4/	5 + 4//	, poor suit	+
2NT			+	+
3			, poor suit
3			, poor suit
ACBL GCC:	Yes	Yes		Yes
EBU L2:

Name:	Uni-Club		Toxic	Scott
Dble	or or or
2	+ //		or +	+ /
2	+ /			+ /
2	+			+
2	+ / + or + +		+
2NT
3	+ +			+
3
3
ACBL GCC:	Yes		Yes	Yes
EBU L2:				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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