MICHAELS CUEBID (with brazilian modification)
and LEAPING MICHAELS (with extension)

After opponent opens we must find agreements to be
competitive during the auction, like:

1- doing a takeout double if we can play in the others 3 suits   with 4432 - 4441 - 5431 - 4333 (3 cards in all others suits);
    Opponent            we
 (1/1/1/1)     double <= takeout x for partner bid

2- making an overcall to show our suit - with  undefined  strength - maybe 8-16 hcp after agreement with partner - in principle we show 5+ cards with 2 honors and probable we can't double because there is a unbid suit that we do not have  3 cards support or principly because the overcal is a indication to lead and so we show to partner where to lead:
    Opponent            we
(1/1/1/1)     bidding other suit without jump
 
3- bidding a takeout double strong where after partner's bid we bid:
a) our own suit in same level (or up the line) showing a middle strength like 16-17 hcp and 5/6 cards); or
b) bidding our own suit in jump to show 6+ cards and 18-19 hcp asking partner 3 cards support or honor second and good  6 hcp to bid game; or
c) if we cuebid that means a fit with partner and a strong hand 18-19 hcp showing game interesting

4- bidding Michaels Cuebid to show weak 2 suits up to 10 hcp or bidding Unusual NT also to show weak 2 suits up to 10 hcp or bidding Leaping Michaels to show 2 strong suits with 6/5 cards and 4 or less losers.

Thus Michaels Cuebid convention is a competitive way to disturb opponents auction showing 2 suits with a weak hand 7-10 hcp having a good distribution 5-5 or 6-5 cards we try to find a good defense against possible opponents game or partial score. So having less hcp than opponents, but good distributional points, we can be competitive with this useful convention since we are no Vul  against nVul.

standard Michaels Cuebid
opener overcaller
  1       2    <= this means a 5+ and (5/5)+ cards
opener overcaller
  1       2    <= this means a 5+ and (5/5)+ cards

brazilian modification
opener overcaller
  1       2    <= this means a 5+ and (5/5)+ cards
opener overcaller
  1       2    <= this means a 5+ and (5/5)+ cards

Note1: the brazilian modification done has the advantage
that give possibility to include Spades with minors:
 5+5+  or  5+5+
that is unable in the traditional/standard Michaels Cuebid or Unusual NT.

Note2: the standard Michaels Cuebid use a minor cuebid (1 overcall 2 or 1 overcall 2) to show both majors with the advantage that the hand can be played at level 2 and not at level 3 as brazilian modification imply.

Note3: the brazilian modification change the Unusual NT convention to show both major or both minors, not like the standard Unusual NT that always shows the unbid suits less hierarchical (- / - / -).
So the Unusual NT have the follow changes:
Opener Overcaller
  1       2nt    <= this means both minors (5/5)+ cards
  1       2nt    <= this means both minors (5/5)+ cards
  1       2nt    <= this means both majors (5/5)+ cards
  1       2nt    <= this means both majors (5/5)+ cards

Rule4: Michaels Cuebid and Unusual NT are distributional hands with 7-10 hcp not recommended to be used Vul against nVul, but recommended to be used nVul against Vul.

Note4: Michaels Cuebid and Unusual NT can exceptionally be bidded with a strong hands with 3 losers and 15+ hcp where overcaller want to know partner's suit with 3+ cards to try a game in hands like:
a) x x AK109xx AKQ10x after opponent opens in a major
b) AKQ10x AKJ98x x x after opponent opens in a minor
c) x AKQJx AK109xx x after opponent opens with 1 or 1 
d) AKQ10x - Kx KQJ10xx after opponent opens 1 or 1,
but we are using Leaping Michaels Cuebid to cover these types of strong and distributional hand, as we will explain in this text.

Thus our Michaels Cuebid and Unusual NT could not be a strong (4 or less losers) or middle strong (11-15 hcp). In these cases it is necessary an overcall and if possible then bid again the second suit.

By the way, if we bid a Michaels Cuebid or Unusual NT with middle range 11-15 hcp or with only 5 losers how advancer (partner of overcaller) could take a final decision for sign-off the bidding or bid game?

LEAPING MICHAELS - concept by Mr. Mark Feldman
This is a special convention that allow us easily show a strong two suits with 4 or less losers bidding after an opponent open in weak 2 and by extension also allow us to show 2 strong suits after normal open in suit at level 1 by opponents.
Leaping Michaels use a jump overcall to level 4 in 4 or 4 to show these rare hands 6-5 with 4 or less losers;
Examples:
a) Opener Overcaller
     2          4 <= this means a 5+ and 5+
b) Opener Overcaller
     2          4 <= this means a 5+ and 5+
c) Opener Overcaller
     2          4 <= this means a 5+ and 5+
d) Opener Overcaller
     2          4 <= this means a 5+ and 5+
Note4: some partnership after a weak 2 open use to cuebid in level 3 to asking advancer for a stopper in Opener suit bidding 3nt with a strong hand and no stopper:
e) Opener Overcaller
     2          3 <= partner bid 3nt with stopper
                              otherwise bid your suit
f) Opener Overcaller
     2          3 <= partner bid 3nt with stopper
                              otherwise bid your suit
but here we prefer to consider this type of cuebid as a simple weak michaels cuebid normaly with a 6/5 distributional hand if nVul. Thus partership must stablish what agreement will follow. 

MICHAELS CUEBID AGAINST WEAK 2 OPEN

We can include here this aproach to 2 weak open where a simple cuebid is a weak 2 majors suits and a jump cuebid is strong 2 majors suits.
g) Opener Overcaller
     2        3 <= this means weak 5+ and 5+ up to 10 hcp
h) Opener Overcaller
     2        4 <= this means strong 5+ and 5+ up to 4 losers

When opponents open weak 2 in a major suit we can also use Michaels Cuebid at level 3 to show 2 suits 5/6 cards - the other major and a minor - with 7-10 hcp and good middle cards:
i) Opener Overcaller
     2         3 <= this means weak 5+ and 5+/5+
j) Opener Overcaller
     2         3 <= this means weak 5+ and 5+/5+

LEAPING MICHAELS AFTER PREEMPTIVE AT LEVEL 3
When opponents open weak 3/3/3/3 we also can use Leaping Michaels bidding in jump to show our 2 strong suits despites Leaping Michaels isn't a GF bid, our structured
bidding can result in a GF sequence:
l) Opener Overcaller
     3         3/3/3 <= that's normal overcall 6+ cards
m) Opener Overcaller
     3         4 <= this means strong 5+ and 5+
n) Opener Overcaller
     3         4 <= strong 2 suits 5+ and a major (5/5)
o) Opener Overcaller
     3         4/4/5 <= to play
p) Opener Overcaller
     3         3/3/4 <= that's normal overcall 6+ cards
q) Opener Overcaller
     3         4 <= this means strong 5+ and 5+
r) Opener Overcaller
     3         3/4/4 <= that's normal overcall 6+ cards
s) Opener Overcaller
     3         4 <= this means strong 5 and 5+/5+
t) Opener Overcaller
     3         4nt <= this means strong 5+ and 5+
u) Opener Overcaller
     3         4/4/4 <= that's normal overcall 6+ cards
v) Opener Overcaller
     3         double <= in principle we play in all suits
                  but with 2 strong suits 5/6 if partner bids:
                  4 => we bid 5 when Clubs is also our suit
                  4 => we bid 4 with 5/5+ denying Clubs
                  4 => we bid 5 when Diamonds is also our suit
                  4 => we bid 4 with 5/5 denying Diamonds
                  4 => we pass with 5/6
w) Opener Overcaller
     3         4 <= this means strong 5+ and 5+

LEAPING MICHAELS EXTENSIONS

These rare hands with 2 strong suits having 5/6 cards with 4 or less losers could be used in many others situations:

1- after a major open
Opener Overcaller
  1        4 => 5+/5
  1        4 => 5+/5
  1        4 => 5+/5+  
  1        4 => 5+/5
  1        4 => 5+/5
  1        4 => 5+/5+    
 
2- after a minor open
  1        4 => 5+/5+
  1        4 => 5+/5 major
  1        4 => 5+/5
  1        4 => 5+/5 major

Example:
Opponent open 1 or 1 and you have:
   - AKJ8x AQJ98x Ax
What you bid?
if the opening was 1 you 4 <= 5-5+ up to 4 losers
if the opening was 1 you 4 <= 5-5+ up to 4 losers

Partnershipd can also make agreements to use Leaping Michaels Extension after any special conventions like Multi or some weak 2 suits in Polish system, thus preemptive bids in a minor with 8+ cards should now be bidded at level 5, because level 4 is now reserved for overcall with strong 2 suits!

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