Description of systems

♠ ♡ ♢ ♣

Currently, the following bidding systems are implemented in the program (details can be changed in the convention card):


Openings for each system (*openings 1♣/1/1/1♠ from 12 HCP (High Card Points) or 10-11HCP and at least 26 zar-points):
  • 1♣
      • 21GF/SAYC - 11*-21 HCP, 3+♣ without five major, 1NT response is not forcing, 2♣ response is forcing, inverted;
      • WJPBC - 11*+ HCP, forcing,
  • 1
      • 21GF - 11*-21 HCP 3+♢, 2♢ response is forcing, inverted, 1NT response is not forcing, 2♣ response is game forcing;
      • SAYC - 11*-21 HCP 3+♢, 2♢ response is forcing, inverted;
      • WJPBC - 11*-17 HCP 4/5+♢, 2♢ response is forcing;
  • 1/♠ - five:
      • 21GF - 11*-21, 1NT response is forcing, response 1♠ - five, 2♣/2♢(/2♡) responses are game forcing;
      • SAYC - 11*-21;
      • WJPBC - 11*-17 HCP,
  • 1NT - 15-17 HCP, hand with 4432 or 4333 or at least half-hold in short suits or very poor five and hand 5332 lub 5422;
  • 2♣
      • 21GF/SAYC - 22+ HCP on any hand;
      • WJPBC - 11*-14 HPC 6+♣ or 5+♣ and major four,
  • 2 - weak 5-11 HCP, option to choose from:
      • diamond six when choosing an option: "Weak natural 2D/2H/2S";
      • major six when choosing an option: "Multi + Polish two-suiters";
      • two suits wilkosza when choosing an option: "Wilkosz + weak natural 2H/2S",
  • 2/♠ - weak 5-11 HCP, optional:
      • six when choosing an option: "Weak natural 2D/2H/2S" or "Wilkosz + weak natural 2H/2S";
      • 5-5 with the fifth in the auctioned suit when choosing an option: "Multi + Polish two-suiters",
  • 2NT
      • 21GF/SAYC - 20-21 PC, balanced hand;
      • WJ4D/WJ5D - 5-11 HCP i 5♣5♢,
  • 3♣///♠ - weak 5-11 HCP;
  • 3NT - gambling - full seven-cards minor suit without other keys;
  • 4♣/ - barrier openings on full major seven suit;
  • 4 and 4♠ - barrier openings on the suit at least eight cards;
  • 4NT - barrier opening on minors, at least 6-6;
  • 5♣ and 5 - barrier openings on the suit by at least nine cards;


Defense bids:
  • input at level one means 5+ suit and 8-17 HCP;
  • the entrance at the level two and above means the suit 5+ and 10/12/14-17 HCP (depending on the level and assumptions);
  • 1NT and 2NT inputs (after opening at level two) are classic 15-17 HCP with the enemy suit stop;
  • defence after 1NT opening:
  • double entry means:
      • takeout double - 12-17 HCP (depending on the level and assumptions) and completion in suits not counted by the opponent;
      • an explanatory double - any hand 18+ HCP,
  • Michaels Cuebid;
  • entering the opponent suit with a jump is an interview, or forcing to game on your own suit.


Competitive auction:
  • after the opponent's dbl against our opening 1 ♣ - pass promises at least three clubs, and 1 is a negative without three clubs;
  • after the opponent's dbl against our natural opening:
      • the answers at the level of one and three are forcing, and at the level of two no forcing;
      • the new color with a jump means the suit + fit convention;
      • support 1NT;
      • Jordan/Truscott 2NT,
  • after the opponent's interference against our opening 1/1♠:
  • after the opponent's dbl against our opening 1NT - redouble is penalty, 7+ HCP;
  • after the opponent's intervention with color for our 1NT opening:
  • double/redouble in order of application:


RKC:
  • Asking for aces RKC version 1430 from 5 (with two values with kings if no trumps or queen if agreed trumps);


Options:


Conventions:


Differences:
  • after the weak 2♡/2♠ opening and the question about the composition 2♠/NT, the answers to the jumpers were extended, showing additionally the top of the word with the same meaning as without a jump;