Defence to 1NT

Page 3

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:	Cappelletti Hamilton Pottage	Mod Capp	Crowhurst Rev Pottage Mod Capp Multi-Landy	Hamilton 3's
Dble	Penalties	Penalties	Penalties	Penalties
2	or or or	or or	+	or or or or 4 + 6/
2	+	+	or	+
2	+ /	+ /	+ /	+ /
2	+ /	+ /	+ /	+ /
2NT	+	+	+	+
3				4 + 6
3				4 + 6
3
ACBL GCC:	Yes	Yes		Yes
EBU L2:

Name:	Middlesex Astro	Oliver	Simpleton	Canape Transfers
Dble	Penalties	Penalties	Penalties	Penalties
2	6 or 4 + //	or or or or + +	or or or	4 + 5//
2	6 or 4 + //	+ //	+	4 + 5//
2	5 + / or 5 + 5	+ /	+	4 + 5//
2	5 + /	+	+	4 + 5//
2NT	Strong 2-suiter	+ +	+
3		+ +	+
3		+ +	+
ACBL GCC:	Yes	Yes	Yes
EBU L2:	Yes

Name:	Soap	Gromöller	Advanced Gromöller	Dixon
Dble	Penalties	Penalties	Penalties	Penalties
2		or or +	or or + or 4 + 5/	+ //
2		or	or	+ /
2	4 + 6/	5 + /	5 + /	+
2	4 + 6/	5 + /	5 + /	+
2NT		+	+
3	, 11-15
3	, 11-15
ACBL GCC:	Yes			Yes
EBU L2:	Yes			Yes

Name:	Petra (weak NT)
Dble	Penalties
2	+ or
2	+ or
2	+
2	+ /
2NT	+
3
3
ACBL GCC:	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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