1. IMP/Precision/1C-1D-1H_relay
https://bridgewinners.com/article/view/precision-1c-1d-1h-relay-and-4441-hands/
Using 1♣-1♦-1H as a relay bid is a common idea in Precision.
This allows balanced hands and hands with primary hearts to be shown.
条件はさまざま、返答もさまざま。-- ToshinoriMaeno 2019-08-01 01:38:51
1444型の17+HCPをどうオープンするかに影響してくる。
(-> ../2D が有力) しかし、Multicolor オープンは使えない。
(続き) You can get a very precise definition of your balanced hands showing 2 hcp ranges.
For example 1♣-1♦-1N=17-18, 1♣-1♦-1♥-1♠-1N=19-20, 1♣-1♦-2N=21-22, 1♣-1♦-1♥-1♠-2N=23-24, etc
Hands with primary hearts can also have their shape and strength shown more precisely.
Hands which are 4441 fall threw the cracks. You could use a 2♦ opening to show any strong 4441 hands and there are probably other ways.
My proposal is to use 1♣-1♦-1♥-1♠-1N to show all 4441 hands F1 including hands with 1♥. Alternatively you could guarantee 4♥.
This would require a change to the NT ladder with a reduction in accuracy. 1♣-1♦-1N=17-19, 1♣-1♦-2N=20-21, 1♣-1♦-1♥-1♠-2N=22-24, etc
Obviously this requires more work on the details. But i was wondering if idea has merit, should suffer thru with 1M rebid being potentially 4441 or using some other way to show 4441 is a better idea.
1.1. Imprecise Precision
After 1♣!-1♢!, 1♡! asks responder to bid an ar-tificial 1♠!.
- The opener will clarify his hand on his next bid.
It is usually a hand with hearts, but can be a strong balanced hand, and even more rarely a hand 6-5 in the minors.
This bid should be explained as, “A five-card heartsuit or a strong balanced hand; or rarely, a hand 6-5 in the minors"
After 1♣! - 1♢! - 1♡!, responder accepts the relay and bids 1♠!(not weak and distributional)
- except in these cases:
• 1N with 5-5 in the majors, very weak • 2-level suit bids with a modest six-card suit, weak hand, no outside Queens. • 2N with 5-5 in the minors, very weak. • 3-level suit bids with seven-card suits, veryweak.
The 1♠! bid can be explained in more detail as not showing one of the above hands.
If the opener is balanced, after 1♣! - 1♢!(0-7):
• 1N immediately shows 18-19 HCP; with the heart relay first, 20-21 HCP • 2N immediately shows 22-24 HCP; with the heart relay first, 25-27 HCP • 3N immediately is to play; with the heart relayfirst, 28+ HCP
After the 1♡! relay is accepted with 1♠!,
an unbal-anced opener bids as follows, all bids showing a heartsuit, and jumps showing extras.
• 2♣! shows 3+ clubs as well as the 5+ hearts • 2♢! shows 3+ diamonds as well as the 5+ hearts. • 2♡ shows a 6+ heart suit, no extras. • 2♠! shows 4+ spades as well as the 5+ hearts. • 3♣!, 3♢! are forcing, suggestive of 5+ in the minor as well, or extras. • 3♡ shows 6+ hearts, invitational. • 3♠ shows 4+ spades, 5+ hearts, with extras. • 4♡ shows 6+ hearts, to play. • 4N is RKC for hearts
Two special bids show 6-5 minor-suited hands:
• 4♣forcing, 6+ clubs, 5+ diamonds. • 4♢forcing, 6+ diamonds, 5+ clubs
1.2. Mavarako
- The way it works in Mavarako:
1C-1D-1H shows 18+ balanced or an unbalanced hand with hearts.
1S says I cant make any of the following bids:
1NT=precisely 5HCP (weird bid explain later) 2C=5 clubs and a 4 card major (5-7HCP) 2D=5 spades (5-7HCP) 2H=5 hearts (5-7HCP 2S= 12-14 balanced
If opener continues with 1NT 18-20HCP, 2D shows 5 diamonds and a 4 card major and all other bids show less than 5HCP except 2N=6HCP 3NT=7HCP
Note 1NT shows exactly 5 so that the partnership can stop at 1NT. (The wrong side matters 2% of the time)
Tom
After a 1 H relay in Precision by David Watson July 8, 2016
https://bridgewinners.com/article/view/after-a-1-h-relay-in-precision-2/
After a Precision 1 Club showing 16+ and a 1 Diamond response showing less than 8 HCP an a rebid by opener of 1 Heart, which could be a relay to show a big balanced hand (19+), what do you think of this treatment for responder's second rebid:
1 Spade 0 -4 HCP artificial 2 Clubs with 5 or 6 Diamonds and 5-7 HCP 2 Diamonds with exactly 5 Hearts and 5-7 HCP 2 Hearts with exactly 5 Spades and 5-7 HCP 2 Spades is a balanced hand with 5-7 HCP 3 Clubs with 5 or 6 Clubs and 5-7 HCP