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A suit opening is made with a 5-card suit or a good 4-card suit with about 13-22 points.

Responses to 1, 1 and 1 openings Edit

Response to a suit opening
0-5 6-10 11-12 13-15 16 17-18 19+
5-card support raise to 4 raise to 3
4-card support raise to 2
good 3-card support
5-card suit 1/1 jump shift
1NT 2/1
4-card suit 1/1
1NT 2/1
balanced hand 2NT 3NT
  • single raise: constructive, 7-10 points, 4 of the suit or 3 with honours;
  • jump raise: forcing, 13-16 points, 4 of the suit;
  • raise to a major game: preemptive, 10- points, 5 of the suit;
  • 1/1: 6+ points, 4 of the suit, forcing for one round;
  • 2/1: 11+ points, 4 of the suit, forcing for one round;
  • 1NT: 6-10 points, no biddable major;
  • 2NT: 13-15 points, balanced, stopper in all unbid suits, forcing;
  • 3NT: 16-18 points, balanced, stopper in all unbid suits;
  • jump shift: 19+ points, single-suited, slam interest

Responses to a 1 opening Edit

The 1 opening is forcing for 1 round:

  • 1: negative, 0-5 points;
  • 2: 2/1
  • others same as above

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