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Leads and signals


Leads against NT

If not specified, lead the top of a sequence

     
A AKx, Ax, AKQx (rare - for SP) unblock Qx, Qxx, Tx, Txx, JT, JTx
K Kx, AK, AKQx, KQx unblock J
  (AKx against 5th or 6th lvl contracts or against declarers preempt)  
Q Qx, QJx, (AKQx - partner can signal count - low = even) promises 0 or 2 higher cards
J Jx, JTx, AKQJx, KQJx, AQJx promises 0 or 2 higher cards
T Tx, T9x, AJTx, KJTx promises 0 or 2 higher cards
9 9x, 98x, QT9x, KT9x, AT9x  
low 4th best from an honour, higher from doubleton, 2nd highest of nothing,  
  lowest from 3rd honor, 8 denies a higher card unless H98, HT8  

When you lead from the top of a sequence and your lead takes the first trick, lead low or lowest from the sequence if you want your partner to unblock.

When your partner leads something and you take the trick, return the suit:

Higher from doubleton
Third from even number
Lowest from odd number

Later NT leads

Ace denies king so a positive signal from partner promises the king
King does not deny ace or queen
Queen does not deny jack
Jack, ten and nine still promise 0 or 2 higher cards
Fourth from an honour, but if we fear the low card would appear too high for partner, lead 5th or 6th or 7th
Third from Hxx
If there is no importance of our holding in our suit, lead count - low = even
When you take the trick (not the 1st trick) with an honour, next lead low in this suit = odd current number

Signals

Ace lead King lead Queen lead Jack lead

   
Ace Queen promises J, small promises Q or length, J is negative but can have the ten
King Unblock some holdings, Jxx = positive attitude, J is either JT, JTx or Jx, T denies Jack
Queen Unblock Jx, small is positive with A/K/T, T denies Jack
Jack a) Dummy does NOT control the suit and declarer can have A9xx - attitude, low = has the ten
  b) Dummy does control the suit or declarer can’t have 4+ cards - Reese count
8 Attitude, low = encouragement
T or 9 Play your honor, if you don’t have, then show Reese Count
Small If Ace or King is played by dummy, show attitude
  If Queen is played by dummy, show Reese count
  3 cards - play the highest, even J from Jxx
  2 or 5 cards - play the lowest
  4 cards - play the second lowest

Reverse Smith Echo

Only applies in the 2nd trick

Both defenders signal, unless the partner of the opening leader showed his attitude clearly in the 1st round
In that case, the non-leading defender signals his current holding in the suit led in the 1st trick (low = odd)
Both defenders signal, unless the opening lead was the eight.
In that case, the opening leader signals his current holding in the suit he led in the 1st trick (low = odd)

Suit leads

Lead Examples
A AKx, Ax, AKQx (rare - for SP)
K Kx, AK, AKQx, KQx, (AKx against 5th or 6th level contracts or against declarer’s preempt)
Q Qx, QJx, (AKQx - partner can signal count - low = even)
J Jx, JTx, AKQJx, KQJx, AQJx
T Tx, T9x, AJTx, KJTx
9 9x, 98x, QT9x, KT9x, AT9x
From H Lowest from odd number of cards, 3rd from Hxxx, 4th from Hxxxxx
From Nothing Top of nothing, lower from a doubleton

When your partner leads something and you take the trick, return the suit:

  • Higher from doubleton
  • Third from even number
  • Lowest from odd number

Later suit leads

Same as NT

Trump signals

Suit preference
Alternative signal: count, initiated mostly by partners unusual play

What to signal

Ace and King generally ask for attitude - low = enc
Queen and lower generally ask for count - low = even
When declarer leads his suit, we can sometimes signal count in that suit - low = even
Suit preference when sending a ruff or when attitude and count had been already shown or are irrelevant

When not to signal attitude

Scenario Highest Lowest 2nd Lowest or Middle
Partner has led A (has AK almost certainly) and dummy has Qxx(x+) 3+ Doubleton  
Partner has led A, we have shown 3+ cards in bidding Odd Even + SP L Even + no SP L
Declarer controls at least the 2nd round of the suit led SP H SP L Neutral
Dummy controls at least the 2nd round of the suit led and has 5/4+ trumps SP H SP L Neutral
Dummy controls at least the 2nd round of the suit led and has 5+/3 trumps* Attitude Attitude  
Dummy has Jxxx(+) Odd Even  
Opening leader can see 10 cards between his hand and dummy Doubleton Singleton  
We have shown 6+ cards in the suit our partner has led Extremes are SP, others are for attitude    
Partner leads a King against small slam Odd Even  
Cash-out: it is obvious that partner has AK+A & he needs to know the count Odd Even  
Cash-out: 5th level, dummy and maybe declarer too have 2+ cards in the suit Odd Even  
(Cash-out: 5th level) If we have shown 3-4 cards in the suit led by partner Odd + SP H Even + SP L Even + no SP L
(Cash-out: 5th level) If we have shown 5+ cards in the suit led by partner 5 + SP H 6 + SP L 6 + no SP L
The opening lead was a disaster and there is no chance for 2+ tricks here SP H SP L  

Partner has 5+ cards, leads Ace and there is xxx in dummy - signal the Jxx holding with positive attitude as you would have the Queen.

*With supposed 4/4 trumps (could be 5+/4 but we do not know) attitude is signaled if one of the defenders has 0-1 or 4-5 trumps

If leading a high card under the general rule of second-highest from a worthless holding, if the two highest cards held are equals, the normal lead is the highest equal (not the first lead at NT except T9x, 98x)

If leading a high card under the general rule of second-highest from a worthless holding, if the two highest cards held are equals, the normal lead is the highest equal (not the first lead at NT except T9x, 98x)

Discards (both suit and NT)

Italian  
odd this suit
even SP for another suit
honour promises at least one lower honour and denies a higher honor

If partner leads his long suit against NT and then discards it, do not lead it again.
If partner leads his long suit against NT and then discards odd of another suit, it does not have to be a real signal, he has just nothing to play.

Various notes

Singleton ambiguity

When you worry about your partner recognising your lead was a singleton, do not give him chance for an alternative play - cash out the ace in the sidesuit Or take the trick with an unnecesarilly high card = wake up, partner! Now I lead my singleton. When you do not know if partners lead was a singleton, try to cash out the ace in the sidesuit Look for partners signal, when he play low, it is encouraging and it was not a singleton When you do not know if partners lead was a singleton and declarer takes the trick, Look for partners signal in the next trick, low in the suit that the declarer has led = it was singleton lead! Low/mid lvl contracts: K from AK, then leading your partners suit (bid) = singleton

AKQ

If partner leads a suit and we have AKQ, the normal play is QAK.

   
AKQ SP H
QKA SP L
KQA SP trumps

Partner executes an unusual play

He is asking us to unblock
He is asking for an alternative signal

Defending against signals

When LHO leads and you have to play something from your hand eventually, signal the same way as your RHO
If they play low = enc, play low if you like your LHO to continue the suit and vice versa
If they play SP, play low if you like your LHO to continue in a lower ranking suit etc.
If only one of the defenders are relevant and he knows that we have a certain card, get rid of it ASAP.

Congratulatory jack

A defender’s unnecessary play of a jack after a deal’s outcome has been decided, to acknowledge partner’s superior defense