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All comments by Doron Harpaz
1 2
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The subject of this pole is discussed also here : http://www.districtsixbridge.org/Articles/Article%202013-06.aspx
Nov. 15
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absolutely not
Nov. 9
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I published a pole related to this here :
https://bridgewinners.com/article/view/1d-opener-rebid-after-2cgf-response/
Nov. 5
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How to bid 4441 distribution is not covered in the pole.
Suggestions for that per each style of bidding are welcome.
Nov. 5
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what is the interpretation of the bid 3m in the sequence
1m-2m-2M-2NT-3m ?
Oct. 19
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In the following sequences responder show 3 cards in a Major suit , looking for 4-3 fit
1-2-2-3-4;1-2-2-2NT-3-3-4;
What strength he needs to do it , can he do it with 10-12 only ?
Oct. 19
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Need clarification for the following NT bids after inverted raise.
1m-2m-2M-2NT ; 2NT bid show stoppers in both unbid suits , any limitation on strength ?
1m-2m-2M-3NT ; 3NT bid show what?
Oct. 19
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You did not specified if you play Serious/Non Serious 3N after 3M.
I think it is a must.
The 2 bid looks strange to me as you do not have a biddable suit (5 cards suit or good 4 cards suit) , I would bid 2 over 2 to deny a biddable suit.
4 bid obviously deny spade control. Does it show slam interest or simply show his hand ?
IMO, the fact you have spade control which might be what partner is looking for is not enough to make 4 bid (LTTC) . If 4 was slam try I would bid 4 (LTTC) with that hand only if the Q in was a K. With the hand as defined i would just bid 4.
Oct. 5
Doron Harpaz edited this comment Oct. 5
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3 (instead of 2) sound to me as asking for stopper , direct 4 (if it was made) sound to me as shortage and looking for spade control. 5 sounds as if he has control and no control
July 26
Doron Harpaz edited this comment July 26
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As I said I was interested in the overall scientific conclusion based on simulation.
A list of advantages and disadvantages is not good enough as it has to be combined with probabilities.
March 9
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i would like to suggest another option how to distinguish between 2M and 3M bid by responder. Both show 3 cards support.

3M - show at least one honor in M , bidding proceed from here as usual
(i.e. show: very bad hand /non serious slam try/serious slam try) ,
strength of responder can be any thing but he is better than direct 4M bid

2M - deny any honor in M strength of responder can be any thing
Opener equipped with that knowledge about trump quality of his partner continue the bidding as he wishes. That include the bid 3M. 3M show he is still interested to play in M and his partner will respond in the same style as described before.

The idea is first lets make sure if we have reasonable trump suit or not. If we have bad trump suit - NT should be considered.
If we have reasonable trumps we can explore slam if we are strong enough.
With the information he got opener is in position to decide how to continue the bidding and to which contract he should target
Same is true for responder who can sign off in 4M or explore slam possibilities by bidding 3M
Feb. 3
Doron Harpaz edited this comment Feb. 4
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thx, i have no access to hiss article
if you can send me a copy of the article it will be great
Feb. 2
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I see that i made a mistake in the definition of how i play it , 3M by responder just show hand with 3 card support stronger than 4M, it can have regular values or extra values ( it does not show non serious slam try as i wrote) after the 3M bid i expect opener to define his strength or show control with extra
Feb. 2
Doron Harpaz edited this comment Feb. 2
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i publish another,similar, poll in which opener has 1354 distribution
pls vote in both polls
Jan. 24
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No honors in majors is part of the assumptions
Jan. 24
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i read BWS again and again and it looks to me that you are correct in the way you understood BWS approach to this subject. I was wrong.
Jan. 22
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this is a question for those who vote for support dbl .
it looks that most of players vote for support dbl .
would you vote for support dbl also if you do not play walsh ?
Jan. 13
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as i wrote we play walsh so in case the bidder has opening hand he is going to bid his own Major (the other one) by himself any how. That is what he intended to do even before the overcall or the dbl
Jan. 13
Doron Harpaz edited this comment Jan. 13
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Larry Cohen has an article on the subject here
https://www.larryco.com/bridge-learning-center/detail/480
Dec. 1, 2016
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My personal conclusion of the subject is as follows:
Spiral Scan is better than specific kings inquiry.
When bidding space is large enough so that it enable to show each one of the 3 side kings โ€“ use specific kings inquiry or spiral scan as you prefer.
When bidding space is too small so that responder to inquiry can not show any king he might have โ€“ reply to kings inquiry with quantity.
The captain of the hand and responder can easily know if the response is for quantity or not.
One can construct specific examples that show that while bidding space is not big enough to show any king, if you do not reply with quantity you will not be in grand . However if you reply with quantity โ€“ you will bid grand slam.
One can construct specific examples where even while bidding space was not large enough - playing specific king is just what you need , and not like i decided to play.
You make your choice
Nov. 30, 2016
Doron Harpaz edited this comment Nov. 30, 2016
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