Retropoet

• Forcing No Trump Response
• The "Ugly" 1S response to 1H opening
• Direct Raises (Bergen Raises)
• The Two Over One Response Not Quite Game Forcing
• Reverse Extended Drury
• Splinter Bids

• Inverted Minor Raises
• A 1NT response promises a balanced 8-10 pts., denies a 4 card major.
• A 1D response denies major suit interest unless strong enough to reverse.
• A 2NT response promises a balanced 13-15 pts., or 18 upwards, is forcing, and denies a four card major.
• A 3NT response promises a balanced 16-17 pts., with no 4 card major, and a hand unsuitable for slam.

• Defense Against Unusual No Trump (D.A.U.N.T.)
• O.B.A.R.B.I.D.S. (Opponents Bid And Raise, Bid In Direct Seat)
• Weak Jump Shifts (Two-level) in Competition
• Fourth Suit Forcing 1 round
• Doubles at the two level almost always takeout
• New Minor Forcing
• Good/Bad 2NT in competition
• Scrambling NT
• Overcalls of strong 2C opening are transfers.
• Overcalls of strong 1C are similar to D.O.N.T. (Disturb Opponents' No Trump)

• Negative Doubles through 3S
• Responsive Doubles through 4D
• Support Doubles through 2H
• Negative Free Bids through 3D
• Action Doubles at the two-level

• 1NT Overcall is 15-19 pts.
• 2NT Overcall (if a jump) is 2 lowest unbid, either weak or strong
• Systems are on after the 1NT overcall

• 10 to 16 HCP
• A new suit response by advancer is not forcing
• A cuebid is 1 round force (12+ pts.)
• A jump raise is invitational when responder has passed

• A jump to 2D over a 1C opening is exclusionary, showing both majors.
• A jump to 3C over a 1D opening is exclusionary, showing both majors.
• Other jump overcalls are weak

• 2C overcall shows clubs and a higher ranking suit, vs. all ranges of NT openings, and in all seats.
• 2D overcall shows diamonds and a higher ranking suit, vs. all ranges of NT openings, and in all seats.
• 2H overcall shows the majors, vs. all ranges of NT openings, and in all seats.
• 2S overcall shows a weak hand with 6 spades vs. all ranges of NT openings, and in all seats.
• A double of 1NT shows a single-suited hand vs. all ranges of NT openings, and in all seats. If the suit is spades, it will be a constructive hand.

Over Opponents' Takeout Double

• A new suit at the 1 level is forcing
• A jump shift is weak
• A redouble implies no fit
• A 2NT response promises invitational values with 4-card support of a major or 5-card support of a minor.

• A cuebid of 2C over 1C shows spades and diamonds
• A cuebid of 2D over 1D shows spades and clubs
• A cuebid of 2H over 1H shows spades and a minor (unknown)
• A cuebid of 2S over 1S shows hearts and a minor (unknown)

• Takeout vs. weak 2's, with Lebensohl advances
• Takeout vs. 3-bids.

• vs. suits
  • 3rd and 5th Best Length Leads
  • Rusinow Honor Leads down to the 8
  • Top of doubleton except 8x up through Jx, lead low.
  • Leads in Partner's Suit are different
• vs. notrump
  • Standard count (which is not normally given)
  • Standard suit preference (frequent)
  • Upside-Down attitude (opening lead and partner's leads)
  • 4th Best Length Leads
  • Ace asks for honor or count
  • Kings asks for attitude
  • Queen asks for Ace or Jack signal
  • J, Ten, or Nine shows next higher card and a significant honor, or is top of a sequence.
• vs. high level contracts or doubled contracts
  • An honor lead shows either one higher or two lower touching or nearly touching honors.
  • Length leads are as above.
• Leads in partner's suit