As you can see from the bidding, we are in a 2/1 auction. I perceived us to have a fit - but because my hand is totally flat my LTC is very high for my point count. I have 2 questions.
1. Should I have bid 2 NT as my next bid - showing stoppers in other suits and a flat hand, but not showing support for what I know to be my partner's 6 card suit.
2. As I perceive a good fit, I calculate my LTC to be 7. My partner and i typically use LTC to determine if we have slam interest once we have a fit. If I say 3 spades, my partner will likely think I have better than a 7 LTC. On this basis, I talked myself out of making the 3 spade bid and instead went to 4 spades which is weaker. Consequently - we missed a slam. With 17 points, I feel like I was foolish to let ltC conteract my instinct to investigate slam.
Also, we are just as good in NT as in spades, and NT pays more in matchpoints.
So -
how should I have approached this hand. i definitely missed the boat.
'#1. Should I have bid 2 NT as my next bid - showing stoppers in other suits and a flat hand, but not showing support for what I know to be my partner's 6 card suit.'
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Altered to give South have the bidding decision -- as suggested by Barmar. 2N seems a sensible bid even if you eventually decide to play in ♠s
'#2. As I perceive a good fit, I calculate my LTC to be 7. My partner and i typically use LTC to determine if we have slam interest once we have a fit. If I say 3 spades, my partner will likely think I have better than a 7 LTC. On this basis, I talked myself out of making the 3 spade bid and instead went to 4 spades which is weaker. Consequently - we missed a slam. With 17 points, I feel like I was foolish to let ltC conteract my instinct to investigate slam.'
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Many 2/1 partnerships routinely open 1M and rebid 2M with only 5 cards. For South, 3♠ seems better than 4♠. Many would rate the hand as 6 losers. In expert circles, it's fashionable to deride the losing-trick count. IMO, however, LTC is a simple useful rule-of-thumb for ordinary players that often improves our decision-making.