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Matchpoints, ACBL robot individual
North knows that I have 3 ♠s opposite its 5 and 2-3 ♦ opposite its singleton and it decides to offer up 3NT as a possible contract with 5-2-1-5 pattern? Having described my hand accurately, do I overrule, with the knowledge that North may have only 4♠? After 3 rounds of bidding, doesn't North know more about the hand than I do, which is only that North has 4 or more ♠ and 11+HCP? Note that North will bid 4♠ if I bid only 2♠.
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