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A convention devised by CHARLES R. GREENWOOD |
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Charles was for many years Tournament Director at the Shotton Bridge
Club and also, |
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for many years ,a TD at the Deva Bridge Club
now located in Christleton, near Chester. |
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He was
the author of the computer scoring programme used for many years at the Deva. |
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This
is a convention for overcalling a natural one of a suit having a two-suited
hand. It |
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serves slightly different functions than the
Michaels Cue Bid, and we see it as a device |
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which may be preferred to the Ghestem
convention. |
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TRIAD generally insists that
the overcalling hand should be at least 5/5 in its two suits. |
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With
the TRIAD
convention, over an opening of 1 of a suit, a jump
overcall of 2NT |
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shows the two lowest
ranking unbid suits. |
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A jump overcall to 3 in a suit
shows the overcalled suit and the highest
ranking |
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unbid suit |
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Thus;- |
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Over an opening of 1♣, 2NT shows ♦s & ♥s, 3♦ shows ♦s & ♠s,
3♥
shows ♥s & ♠s. |
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Over an opening of 1♦, 2NT shows ♣s &
♥s, 3♣ shows ♣s &
♠s, 3♥ shows ♥s & ♠s. |
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Over an opening of 1♥, 2NT shows ♣s & ♦s, 3♣ shows
♣s & ♠s, 3♦ shows ♦s & ♠s. |
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Over an opening of 1♠, 2NT shows ♣s
& ♦s,
3♣ shows ♣s & ♥s, 3♦ shows ♦s & ♥s. |
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Newcomers to this convention sometimes baulk at the idea of
overcalling at the three level, |
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although they have become quite comfortable
with the Unusual Two NoTrump (UNT) bid |
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which will normally result in playing at the
three level. TRIAD is like an Unusual Two NoTrump, |
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but for any two unbid suits. |
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We see
a number of advantages with TRIAD. |
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(i) It is very easy to
remember. The 2NT overcall is well established as showing the two |
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lowest ranking unbid suits, whilst any jump to
three shows the suit bid and a second suit which |
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is always spades except when opener has bid
spades, in which case the second suit is hearts. |
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(ii) it preserves the
immediate overcall in opponents suit for the rockcrusher hand. |
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(iii) as you have the suit bid
then the convention is legal. |
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(iv) it may be considered a
plus point that, if partner should happen to forget and pass |
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at least you will be playing in one of your 5
card suits. It might even be the best contract. |
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TRIAD by Charles R.Greenwood |
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OPPONENTS
BID |
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HOLDING MIN 5 CARDS IN EACH SUIT |
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1♣ |
1♦ |
1♥ |
1♠ |
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2 LOWEST UNBID SUITS |
2NT |
♦ + ♥ |
♣ + ♥ |
♣ + ♦ |
♣ + ♦ |
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BID SUIT + HIGHEST UNBID SUIT |
3♣ |
--- |
♣ +
♠ |
♣ +
♠ |
♣ + ♥ |
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" " |
3♦ |
♦ + ♠ |
--- |
♦ +
♠ |
♦ + ♥ |
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" " |
3♥ |
♥ + ♠ |
♥ + ♠ |
--- |
--- |
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NATURAL BID |
2 ♣ |
STRONG |
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--- |
--- |
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" " |
2 ♦ |
--- |
STRONG |
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--- |
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" " |
2 ♥ |
--- |
--- |
STRONG |
--- |
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" " |
2 ♠ |
--- |
--- |
--- |
STRONG |
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