Vincent Brévart

Vincent Brévart

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Novedades de SimiliBridge 5.20

20 de junio de 2024

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Improvements in the bidding

  • An Advanced option for the responses to overcalls

    In SimiliBridge, responses to overcalls were defined for a long time by the simple principle of equivalence with responses to openings, with just an upward gap of 2 points to compensate for any weakness of the overcaller. But this way of proceeding no longer corresponded to current conventions. So I added an Advanced option, which uses the cue-bid (bidding the opposing suit) to clearly distinguish bids with points from purely competitive ones. Thus, direct support bids are most often a sign of weakness or a desire to make a preempt. And showing support with points is done in two stages, by a cue-bid then a support bid. Splinters and fit-jumps (already used in other developments) have also been added.

    The Advanced option for the responses to overcalls is unchecked by default. But as it is relatively easy to master, I advise you to activate it in the rule preferences on the Bidding / Overcalls / Responses page. This first option concerns the responses to a suit overcall without jump. See some examples with deals N°2 to 6 of the Last corrections file (accessible via the Examples menu).

    BEWARE!: The Competition option is only complete for the 1-level major suit overcall. For the responses to the 1 Diamond, 2 of a minor and 2 Hearts overcalls, only the first responses have yet been codified. Their developments are currently managed by the Horsys automatic engine, and will be improved in a future version.

  • Improvements in the responses to the takeout double

    Here too, I had a lot of progress to make (I still have some left!). It is again the cue-bid (bidding the opposing suit) which makes it possible to enrich the responses to the takeout double. It is used with points without a natural bid, or when there is doubt about the game to reach, or when there is hope for slam. The player who makes a cue-bid will specify his distribution and strength on the next bid.

    I did not put an option for this improvement, because the cue-bid was already usable despite its meaning being too imprecise and the impossibility of making bids in two stages. But you don't have to use it. As is often the case after an overcall, the responses are not mutually exclusive and several of them are acceptable. Your choice will depend on your goals and the information you want to obtain from your partner. Rest assured, in many cases, you will be able to reach the right contract by different bidding sequences.

    Note that in response to a takeout double after a minor opening, the player with a weak hand and both 4-card majors classically started by responding 1 Heart (the lower ranking suit), promising only 3 cards. But good players now bid 1 Spade, the higher ranking one first! Why? Because on the next round, it will sometimes be possible for them to bid 2 Hearts, which will describe the weak 4-4 major two-suiter! Finding the best contract will then be easier.

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Other little improvements

  • The deal editor has been improved

    In the deal editor, I've added the display of H points for each player, which simplifies the building of deals. In addition, right-clicking on a player's card allows it to be moved no longer to the table, but to the target player, if the latter is different. Thus, it is no longer necessary to drag a card to move it from one player to another. Once the target player is selected, any right-click on a card of the table or of another player's hand transfers the card to the target player. Finally, control clicking on a player's hand picks up all of his cards and moves them back to the table.

    To improve the responses to overcalls, I had to reproduce dozens of deals taken from different bridge books, in order to ensure that the right decisions were made in the most important situations. And the work quickly became tedious. With these small improvements, I was able to build my test deals more efficiently.

Thanks to all those who have proposed these enhancements.

Best wishes