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Odd - Even Roman Discard System

Odd-Even Discards often known as Roman Discards are a signal to your partner about attitude towards the suit you are discarding and also showing preference towards the two unplayed side suits.

A discard system is a system where any card that you follow suit with which will not win the trick is known as a discard.

The method or order in which you discard these cards signals to your partner what you like or dislike in a suit (attitude)
This value of the card, whether it is an odd or even card either encourages or discourages that suit.

Basic Premise

To signal which side suit you would like led

If you play and discard a higher card (usually 6 or greater equals a high card) - the "high-ness" is asking partner to lead the higher side suit of the unplayed suits, if partner gets the lead at any time.
On the other hand, discarding a low card is a signal, asking partner if they get a chance to lead they should lead the lower ranked side suit of the unplayed suits.


Encourage a suit with odd number discards

A card which is an odd number  for example 9, 7, 5, 3 is a signal that you wish partner to lead the suit of the discard if they have the opportunity. It is an encouraging signal.

Discourage a suit with even number discards

A card which is an even number for example 10, 8, 4, 2 signals that you don't wish partner to lead that suit if they have the opportunity. It is a discouraging signal.

Examples

The opposition lead out the heart suit, Your partner on their first discard plays a card which shows you how they feel about the suit of the discard and also about a side suit preference:
Partners Discard Encouraging/ Discouraging
suit discarded
Side-suit
preferred
5S - a low, odd number Encouraging Spades Clubs - the lower unplayed side suit
3D - a low, odd number Encouraging Diamonds Clubs - the lower unplayed side suit
7C - a high odd number Encouraging Clubs Spades - the higher side suit
4D - a low even number Discouraging Diamonds Clubs - the lower unplayed side suit
8S - a high even number Discouraging Spades Diamonds - the higher unplayed side suit
2C - a low even number Discouraging Clubs Diamonds - the lower unplayed side suit
8D - a high even number Discouraging Diamonds Spades - the higher unplayed side suit
9C - a high odd number Encouraging Club suit Spades - the higher unplayed side suit
Any card which is a 6 is a neutral card Not encouraging or discouraging No suit Preference
Any Card which is an honor card Not encouraging or discouraging No suit Preference


Using Roman Discards

The opposition play a heart card and you have these cards left in your hand. What card would you play to show your partner you wanted to partner to lead spades and discouraging the club suit?

  • A K 5 2
  • A 9 8 5
  • Q 9 8

The 8C a high even number discouraging clubs and encouraging the higher side suit which is spades

If you discard the 5D this encourages the diamond suit a low odd number and also encourages the clubs as a side suit