ais523

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ais523
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  • Your (iii) option is disallowed. You might just-about be able to wrangle the shape into being legal under Blue Book 7B1(i): if the hand doesn't have a 4-card minor, it will usually have a legal shape for a notrump opening instead (the least extreme …
    in Legal System Comment by ais523 May 6
  • Maybe a Swiss movement? That would help to keep people mixing as little as possible, which might help to make things safer. I'd imagine that you'd want a lot of preparation, though; probably making use of things like perspex screens, and separate b…
  • BBO's set of movements is very limited. If you want a single-winner round-robin-style movement, your only real option is to play what BBO calls a "Howell" (but it isn't an actual Howell and is probably a lot more unbalanced than the real thing). It…
  • An explanation of something other than the partnership agreement is a mistaken explanation even if it happens to fit the hand of the player who made the call. It can cause damage, too (imagine if the same bidding sequence comes up on the next board,…
  • Stayman is another example of a multi-way bid (it might have hearts or might have spades), and it isn't explicitly permitted at level 2 either. I think both Stayman and McKendrick (i.e. 1NT, 2!s = bad NT invite or to play 3!c or 3!d) fall under the…
  • @weejonnie said: c) For a weak jump overcall at the two level one would expect a 6-card suit and something in the region of at least 6 points (most of which are in the suit!) At the three level one would expect a 7 card suit. Your partnership …
  • Hmm, I think I like this reasoning: an incomplete explanation on the system card may be inevitable, but in that case, it's vitally important that the opponents are made aware that it's incomplete (so that they can ask for more details in situations …
  • To answer a question from earlier in the thread: the red box around a bid in the hand records reflects whether or not the bidder pressed the "alert" button on the BBO interface when making the bid, regardless of the timing of the explanation. If a p…
  • It strikes me that in most of these cases, the 7!c bidder's LHO isn't going to have paused for 10 seconds over the skip bid, like they're supposed to (and an unexpected 10 second pause in real life would probably clue the bidder into what was going …
  • My usual habit in real life if I think RHO has made a mechanical error (assuming I think this for reasons unrelated to the contents of my hand – it's important to avoid UI) is to ask what the bid means – there is no rule against asking a question fo…
  • Just to clarify what the BBO "opening shuffle" is: in face-to-face play, there's a requirement for dummy to put the trumps on the left from declarer's point of view (law 41D). BBO misinterprets the requirement and somehow ends up forcibly resorting …
  • Law 25A4 is very clear on the issue, but I agree that the consequences in this situation are unfortunate. (Interestingly, depending on vulnerability, 7!c undoubled might well be a good score against 3NT making, but it isn't really bridge.) My guess …
  • @gordonrainsford said: I'm puzzled by two things you say. What aspect of your 2S bid might be unexpected? Why would 4H not be assumed to be natural in the absence of any contrary agreement? When playing at a club level, I've been told by the…
  • At table numbers that large, I wonder whether it would start making sense to use four-winner movements. Just like it's harder to make a fair one-winner movement at medium table numbers, it can become hard to make a fair two-winner movement when the …
  • Another reason claims are rarer online is that if the opponents are playing quickly, it's often faster to demonstrate your line of play than it would be to type it out. "5 trump, AK!d, AKQx!c" took me 6 seconds to type just now (and I was trying to …
  • I learned bridge primarily from books and websites, in addition to some practice against robots. So I don't think face-to-face instruction is required for everyone, although probably the majority of players will find that the easiest way to learn.
  • Something not listed above, but which I think is one of the biggest opportunities of online bridge (and one which, sadly, BBO has failed so far to take advantage of), is arrow-switching errors. When you want a 1-winner movement, we tend to use some…
  • The stipulation of "no undos" is not technically compliant with the Laws of Bridge. Failing to allow an undo in this situation would be a breach of Law 25A1, which (unlike some Laws) does not give any discretion to the Regulating Authority or Tourna…
  • I find it quite difficult to remember that I need to pause for 10s when nobody is giving me a "stop!" reminder, and I'm worrying that it's creating more UI than it really should. So I appreciate platforms that have some form of built-in stop-carding…
  • Is it East who declared 3NT and went one off? If so, West is at fault for failing to disclose a missed alert before the opening lead (at which point N/S can figure out what the opponents have, and haven't lost that much bidding space, so can probabl…
  • I think a weak two is an announcement, "weak", even if it always has a 7 card suit in the suit bid. So merely having a 7 card suit as a possibility is even less in need of alerting. I personally probably bid weak twos with 7-card suits more than an…
  • Along similar lines: I've been working on a system in which 2!c (but not the other 2-level openings) is a strong two, in the style of traditional Acol strong 2!d/2!h/2!s (and thus guarantees clubs). According to current regulations, this should be …
  • @JeremyChild said: So, can I have a system that changes if opponents ask about the bid? It seems wrong but I can't see anything that stops me. A system like this should probably be listed on your system card (in the section about agreements …
  • It's normal to pass even with a fairly strong hand if most of your values are in RHO's suit. (This is normally called a "trap pass".) I don't see any reason why trap passes would be alertable (assuming that they're only a rare hand type, and weak h…
  • A mea culpa here: in the RealBridge practice session this morning, I failed to alert West's penalty double in the following sequence, and didn't realise until just now: {b1dx1h1nppx2cx/} (The first double was takeout, the other two were penalty.) …
  • I've had a claim correctly rejected when I've claimed zero tricks (my partner had a certain trick that I didn't realise, so by Law 79A2, the opponents couldn't legally accept the concession).
    in Claims Comment by ais523 October 2020
  • Assuming you're talking about the BBO robots: The card Triffid discusses isn't in EBU format (or even any other format, really, it's just a short system summary). The best description I know of what the robot plays is in its system notes. One prob…
  • Unless the defenders are being slow, it's normally faster to play your side-suit winners than it is to type a claim statement saying that you will play them. As a result, if you want players to claim sooner, you need to give some leeway in claiming…
    in Claims Comment by ais523 September 2020
  • My experience with playing artificial defences to 1NT is that knowing the relative lengths of partner's major and minor is actually very useful information, at least at matchpoints (to the extent that the "Woolsey" defence, which is commonly played …
  • An easy way to think about subset calls: when replacing a call with a comparable call based on subset-of-meanings, the replacement call isn't allowed to give any less information, but is allowed to give more information. For example, say I open 1!s …