Defence to 1NT (original) (raw)

Page 1

by David Stevenson

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:	Astro	Aspro	AsptroShort Asptro	AsptroLong AsptroKASTRO
Dble	Penalties	Penalties	Penalties	Penalties
2	+ /	+ //	+ //shorter	+ //longer
2	+ //	+ /	+ //shorter	+ //longer
2
2
2NT	+	+	+	+
3
3
ACBL GCC:	Yes	Yes	Yes	Yes
EBU L2:	Yes	Yes	Yes	Yes

Name:	Sharples	Mod Sharples	Roche	Ripstra
Dble	Penalties	Penalties	Penalties	Penalties
2	Any hand with 4+	Any hand with 4+	Balanced, 12-14, 3+	+ , better than
2	Any hand short in	Any hand short in or +		+ , better than
2
2
2NT
3
3
ACBL GCC:			Yes	Yes
EBU L2:	Yes		Yes	Yes

Name:	Cansino	Mod Cansino	Revised Cappelletti	Landy
Dble	Penalties	Penalties	Penalties	Penalties
2	+ + / or + +	+ + / or + +	or / + /	+
2	+	+ +	+
2
2
2NT	+	+	+
3
3
ACBL GCC:	Yes	Yes	Yes	Yes
EBU L2:	Yes	Yes		Yes

Name:	Original CRASHOriginal CRO	Modified Wallis	Randy	MosherNatural
Dble	Penalties	Penalties	Penalties	Penalties
2	+ or +	/ + /	+
2	+ or +	+	+ /
2
2
2NT	+ or +
3
3
3
ACBL GCC:		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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