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

• • 21GF - 2/1 Game Force;

  • SAYC - Standard American Yellow Card;

  • WJ - Polish Club;

  • PC - Meckwell Lite Precision Club;

  • Acol - Standard English Acol.

Openings for each system (*openings 1♣/1♦/1♥/1♠ from any 12 HCP or good 11 HCP or 10 HCP after passes:

• • 1♣:

    • • 21GF/SAYC - 11*-21 HCP, 3+♣ without five major, 1NT response is not forcing, 2♣ response is forcing, inverted;

      • WJ - 11*+ HCP, forcing;

      • PC - 16+HCP, any shape;

      • Acol - 11-21, 4+♣,

  • 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;

      • WJ - 11*-17 HCP 4/5+♦, 2♦ response is forcing;

      • PC - 11-15 HCP 2+♦;

      • Acol - 11-21, 4+♦,

  • 1♥/♠:

    • • 21GF - 11*-21, 5+M, 1NT response is forcing, response 1♠ - five, 2♣/2♦(/2♥) responses are game forcing;

      • SAYC - 11*-21, 5+M;

      • WJ - 11*-17 HCP, 5+M;

      • PC - 11-15 HCP, 5+M;

      • Acol - 11-21, 4+M,

  • 1NT - hand with 4432 or 4333 or at least half-hold in short suits or very poor five and hand 5332:

    • • 21GF/SAYC/WJ - 15-17 HCP;

      • PC - 13-15 HCP;

      • Acol - 12-14 HCP (weak style),

  • 2♣:

    • • 21GF/SAYC/Acol - 22+ HCP on any hand;

      • WJ - 11*-14 HPC  6+♣ or 5+♣ and major four,

      • PC - 11*-15 HPC  6+♣ or 5+♣ and major four,

  • 2♦:

    • • 21GF/SAYC/WJ/Acol - weak 5-11 HCP, option to choose from:

        • • Weak natural 2D - 6+♦;

          • Multi - 6+M;

          • Wilkosz - 55 excluding both minors,

      • PC:

        • • 11-15 HCP, 3415, 4315, 4414, 4405,

  • 2♥/♠ - weak 5-11 HCP, optional:

    • • Weak natural 2M - 6+M;

      • Polish two-suiters - 55 with at least one major,

  • 2NT

    • • 21GF/SAYC - 20-21 HCP, balanced hand;

      • WJ - 5-11 HCP i 5♣5♦;

      • Acol - 20-22 HCP, balanced hand,

  • 3♣/♦/♥/♠ - weak 5-11 HCP, 7+ cards;

  • 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;

After 2NT and NT style:

• 3♠ - transfer to clubs with a correction to diamonds.

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(16)-17(18) HCP with the enemy suit stop;

• entering the opponent suit with a jump is an interview, or forcing to game on your own suit.

Competitive auction:

• WJ - 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♠:

  • • Fit showing jumps,

• after our opening 1NT:

  • • after the sequence 1N-(2C)-? all bids have the same meaning as after the sequence 1N-(P)-? 

The exception are bids that conflict with bid 2C;

• • • instead of 2C there is a double as Stayman;

    • if the opponent's dbl - redouble is penalty, 7*+ HCP,

• doubles and redoubles:

  • • Maximal Doubles;

    • negative double;

    • penalty double.

    • reopening double;

    • Responsive double;

    • Snapdragon Double;

    • support double/redouble;

    • takeout double.

• other doubles:

  • • if the opponent bid a suit in which the partner has a length, it is full support for that suit;

W N E S

1D 2D

X

X - 3+♦ (where 2D - 5♥ and 5♠)

Additional terms:

• no agreed suit;

  • it is not the second opener's bid;  

• it is not second double first defender;

• it not is penalty double.

• • • if the opponent has submitted a suit in which the player has a length - this is showing the length +1:

W N E S

1S

P 1N 2S X

X - 6+♠

Additional terms:

• no agreed suit.

A bid in opponents suit:

• if the opponents declare 0, 1 or 2 cards of a suit - always naturally;

• if the opponents declare 3 cards in a suit:

  • • artificially for the first LHO and RHO bids;

    • naturally in the further bidding;

• if the opponents declare 4+ cards of a suit - almost always artificially.

Cue bid to show limit raise or better: 

• imposible 2♠;

• 2N if:

  • • responder first bid or second defender first bid;

    • RHO bids suit or N;

    • partner's HCP >= 11;

    • previous bid = pass; 

    • bidding  opponent’s suit is above 2N;

    • current bid < 2N,

• the opponent’s suit.

They double our transfer:

• pass - no 3 cards, no stopper;

• redouble - no 3 cards, stopper;

• transfer acceptance - 3+ cards.

We have agreed suit and they double our artificial bid:

• if the redouble is not a cue bid (for example weak hands or partner did not show the stopper in this suit):

  • • pass - minimum HCP, no more trumps;

    • redouble - surplus;

    • agreed suit - an additional trump.

• if the redouble is a cue bid:

  • • pass - no stopper, no more trumps;

    • redouble - cue bid;

    • agreed suit - an additional trump.