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  • The Blackwood convention involves the use of the 4NT bid to ask your partner how many keycards they hold. A keycard is defined as any of th ...ve of the suit and not take the risk of slam going down due to the missing queen.
    6 KB (1,164 words) - 07:06, 26 June 2017
  • ...to your partnership agreements, your partner's 4NT bid means [[User:Brian/Bridge/Blackwood|Blackwood]], you must first remember which suit has been agreed u If you opened with notrump, make sure the 4NT bid is not a [[User:Brian/Bridge/Quantitative notrump raises|quantitative raise]]. If it's a quantitative ra
    3 KB (500 words) - 07:01, 26 June 2017