jogs
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Everything posted by jogs
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Maybe I should make this question clearer. With 4=3=3=3 1♣-1♥, ? Do you rebid 1♠? That means could be 3 clubs. or Do you rebid 1NT? That means 1♠ promises 4+ clubs.
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Playing SAYC or 2/1 how many clubs does this auction show? 1♣-1♥, 1♠ TIA, jogs
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Vulnerable, I wouldn't overcall 2♥ over 1♠.
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Did opps stick their neck out too far?
jogs replied to mgoetze's topic in General Bridge Discussion (not BBO-specific)
By imps, do you really mean swiss teams imps converted to VP? If they make this, this board should win them the match. If they make this because they played the diamonds carefully because you alerted them to a 4-1 split that would be sicking. If they go down one, the double is a 3 imp gain. They need to go down two of more before the double is clear. -
Skill differences among top pros
jogs replied to Siegmund's topic in General Bridge Discussion (not BBO-specific)
It's published somewhere. What's the standard deviation for results for one board? Both, dealer vul, opponent's vul, and none. 64 board match. The better team is 1 imp per board stronger. I think the weaker team has about a 5 to 7% chance for a upset. In the last 20 years there has been quite a few upsets of top teams in the first round. -
1♠. I like plus scores. Pard is a passed hand. He would need a 4 spades and a max pass for 4♠ to be 50/50.
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I love this idea and would carry it further. Pd opens 1♦. With 4=3=2=4 AND most of the points in the rounded suits, bid 1NT.
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I had always bid 1♠. But the more I think about it the more I like 1NT. On the second question bid 1♠ and plan to pass 1NT. Sometimes opponents reopen against our 23-25 HCP.
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Where was the BIT? Was it the passed hand when bidding 3♠?
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personal consideration on the bridge score
jogs replied to patroclo's topic in General Bridge Discussion (not BBO-specific)
italian translation to english The internet translates many languages to English. Try to google it. -
Maybe it's time for someone to create an airbnb for bridge players.
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Not enough points!
jogs replied to WellSpyder's topic in General Bridge Discussion (not BBO-specific)
There was the added condition that both partner's averaged under 8.5 points. Does that make it closer to 3 Std dev.? -
Suit Combo Question
jogs replied to eagles123's topic in Intermediate and Advanced Bridge Discussion
The code command works. 3.11.6 North A105x South Q86x Three Tricks L-Q, L-10 L-A, L-Q L-10, A R-Q,L-10(7) % 55.39% 50.30% 47.48% 45.78% Two Tricks L-A L-Q L-10 Duck in both hands % 95.22% 97.17% 97.17% 100.00% Max tricks L-Q, then L-10 Average tricks 2.525652174 -
Would only consider 4♠ at favorable vulnerability.
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My preference is with 5332 open 1NT with 15-16 points. Treat 17 as you would a 18-19 point hand. A real ugly 17 may be opened 1NT.
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I lead low once about 30 years ago. 1♦ - 1♠ - 2♥ - pass 4♥ - all pass The spades were ---------♠ Axxxx ♠ Jxx ----------------♠ Kxx ---------♠ Qx It went low spade to the ace. Low spade. Declarer played small and my queen won. Club to pd's ace and spade which I ruffed. We were the only pair to beat 4♥.
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Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
Look at the second matrix on page 2 on Helene's link on post #74. Perfect information is the definition of a deterministic game. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
Just look at the matrix on page 2. A hidden hand means you don't have perfect information on your opponent's cards. Therefore the game is non-deterministic. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
Read the entire link. Chess is partially solved. The end game can be solved. GO is more complex than chess. Non-deterministic games have a random element. All the common sports games are non-deterministic. Card games are non-deterministic. Poker is not solved. Although certain poker situations are solved. The math guys use the term perfect information for deterministic games. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
http://en.wikipedia.org/wiki/Solved_game I found it. I was using "solved" correctly. You are confusing optimal strategy with solved. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
Okay, I should say in deterministic games the outcome is predetermined. The bidding portion of bridge certainly hasn't been solved. And there may be a ro sham bo effect. System A beats system B. System B beats system C. System C beats system A. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
No. 90% slams still go down 10% of the time. Deterministic games can be 'solved'. Probabilistic games cannot. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
In chess during the end game brute force is investigating every permutation. The chess program would always find the solution. A simulation examines a small portion of the possible permutations. Declarers count their sure winners, then their possible winners. A bridge program should also be counting sure winners. Maybe use simulation for possible winners. In many cases it may be in a table of percentages. Mainly probabilistic games like bridge aren't suitable for brute force analysis. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
Watson beat Jennings in Jeopardy. Computers are learning to think like humans. Do these top bridge playing programs really use lots of simulations? Humans don't use simulations to play hands. -
Why are computer not better than they are at bridge?
jogs replied to lackeman's topic in Expert-Class Bridge
It's actually the other way around. Chess is a deterministic game. That means either 1) white always wins, 2) black always wins, or 3) it is always a draw. Bridge is a probabilistic game. In a 7 board match lucky beginners can beat world champions. Chess does have a time period. Chess uses the clock. Each player must make x number of moves within a certain time period. Bridge has been reluctant to penalize slow players. And when there are questions, which side should be charged the time?
