DEFENSIVE AND COMPETITIVE BIDDING LEADS AND SIGNALS WBF Convention Card 2.16
OVERCALLS (Style; Responses; 1/2 Level; Reopening) OPENING LEADS STYLE
Natural sound, New suit=F1, jump 2NT= 2-suiter, Lead In Partner's Suit
jump in new suit=Splinter and fit to partners suit, Romex Trial Bids Suit 4th, MUD 1., 3. 5.-highest. ATT if spported.
NT Journalist, Garozzo as above Category: Natural - GREEN
Subseq ATT ATT Country: Denmark
Other: Event: ALL EVENTS
Players: Hans Christian Nielsen & Knud-Aage Boesgaard
1NT OVERCALL (2ND/4TH Live; Responses; Reopening) LEADS SYSTEM SUMMARY
15-18 bal Lead Vs. Suit Vs. NT GENERAL APPROACH AND STYLE
4th pos. 11-14 bal Ace AKx, AKJ10x AK, AKx ACOL-based system, Lowest 4-card suit, 1S=5+;1H=4+,
King AK, KQ, KQx KQJ10x, AKJ10x
Queen AQJx, QJ, QJx KQ10xx, QJ10xx
Jack KJ10x, J10, J10x J109x, QJx,
JUMP OVERCALLS (Style; Responses; Unusual NT) 10 K109x, 109, 10x, KJ10xx, K109x
1-Suit: 2S, 3H, 3S, Preempt. 3m is preempt after 1M-opening. 9 J987, K987, 109x Same-
2-Suit: 2NT= 2 lowest unbid suits; After 1 m: a) 3C shows at least 5-5 inHi-x Sx, xSx, SSxx SSx, SSxxx 1NT Openings: 15-18 bal
highest and lowest unbid suits, b) 3D=the 2 highest unbid suits. Lo-x HxxS, HxxS(+) HxxSS, AKxxS 2 OVER 1 Responses: 10+P
Reopen: Double promises opening strength. SIGNALS IN ORDER OF PRIORITY SPECIAL BIDS THAT MAY REQUIRE DEFENCE
DIRECT and JUMP CUE BIDS (Style; Responses; Reopen) Partners Lead Declarer's Lead Discarding A. direct Cue-bids: Revised Michaels CUE-Bid. F. ex. 1M-2M shows
Michaels Cuebids (revised) showing 2 suiters (6-11p).  Suit:1st Hi=DISCRG Hi/lo=O Hi=DISCRG at least 5 in other M and at least 5 in any minor. 
(1M)-3M=bid 3NT with stopper. 2nd Hi/lo=O B. MULTI 2D: (3-7 hp weak 2M; Bal= 25+; or strong with D). 
3rd C. 3C-opening = Any solid minor.
NT: 1st encouraging odd/even Hi=DISCRG D. 3NT-opening= Any minor (preempt).
VS. NT (vs. Strong / Weak; Reopening; PH) 2nd Hi/lo=O E. 4C, 4D = Namyats (strong 4H/4S with 7½ to 9 losers).
Revised Kelsey showing a 3 suited hand ; 3rd F. Revised Kelsey (Wohlin) after opponents 1NT. 
In 4th: 2C=M+m; 2D=M+M; D=3-suited . Signals (including Trumps): Lavinthal, Smith Signal G. Weak 2 opening in M (6-10 hp)
(Hi/Lo=interest in the suit led;
Trumps:Hi-lo shows interest in ruff
TAKEOUT DOUBLES (Style; Responses; Reopening)
VS. PREEMPTS ( Doubles; Cue-bids; Jumps; NT bids) Negative doubles, Responsive doubles,
LEB after (WK2x)-DBL-(P)-, OPT DBL, 2NT (afterWK2x)=nat Competitive doubles, point-showing doubles
SPECIAL FORCING PASS SEQUENCES
VS. ARTIFICIAL STRONG OPENINGS SPECIAL, ARTIFICIAL AND COMPETITIVE DOUBLES/REDOUBLES Basicly, we use forcing-pass where we use negative doubles. 
Vs 1C: dbl=C+M, 1NT=Both m, 2C=D+M, 2D=Both M; Lightner doubles, Redoubles shows either any balanced
JUMPS=PRE, hand 10+ points or interest in doubling opponent (new
suit bid on the 1-level is natural 6+ and on the 2-level 10+) IMPORTANT NOTES THAT DON'T FIT ELSEWHERE
4th suit forcing to game.
OVER OPPONENTS' TAKE OUT DOUBLE
Transfers after 1M-opening ; 2NT after 1m-opening= Raise
10+ points, 2NT after 1M-opening=Stenberg(GF with fit); New suit= Psychics: We use psychics once in 3-10 matches.
natural 6+/10+; RDBL=10+ and BAL/interest in penalty
OPENING BID DESCRIPTIONS
Opening Artificial Min. Neg Dble thru Responses Subsequent Auction Passed Hand Bidding
1C 3 2S 12+P Nat., 3C=Limit, Splint=GF, 2NT=10-12HCP no major,1C-1Y 1NT = 2C invit and 2D =FG Jump shifts=Nat.+ Cfit.
1D 4 2S 12+P Nat., 3D=Limit, Splint=GF, 2NT=10-12HCP no major,1D-1H/S, 1NT-2C= Art invit; 2D ART FG 2H,2S, 3C=Nat.+Dfit.
1D Openers reverse bid on 2 level may be weak.
1H 4 2S 12+P STENBERG'S 2NT=FG raise (relays), Splinter=9-11 1H-1S 1NT-2C= Art invit; 2D= Art FG 2C= Drury (FIT): 2D=12+P
1H Openers reverse bid on 2 level may be weak. STENBERG'S 2NT= good raise
1S 5 2S 12+P Stenberg's 2NT=FG raise (relays), Splinter=9-11 1S-1NT- 2C =Art (INV+); 2NT= FG (3-suiter). 2C= Drury (FIT): 2D=12+P
1NT 2S 15-18 bal, 2C=Asks for strength/distr., Transfers, 2NT= both mSpecial defense after opponents interference.
2C x 0 3S a) 18-20HCP bal b) 23-24HCP bal 2D relay, 2H=Transfer-->S, 2NT=Semisolid 6+ suit ,
2C c) Any Forcing with C 2S and 3C= Forcing (5card+)
2D x 0 2NT T
MULTI(3-7 weak 2M; or 25+ bal; or NAT Acol) = Relay, 3M = FG natural 5-card+, 3m=FG NATl ransfer-bids may occur
2H 5 Weak 2 in H (6-10 p). Vul at least 6 card. 2NT=Relay. New suit nat and FG.
2S 5 Weak 2 in S (6-10 p). Vul at least 6 card. 2NT=Relay. New suit nat and FG.
2NT 21-22 bal 3C =Asks for M, 3H/3S=At least 5 cards in unbid M,
3C 7 Any solid minor 3M= Nat FG, Spec. asking bids
3D 6 Preempt
3H 6 Preempt
3S 6 Preempt
3NT x Preempt any minor 4D= relay, spec. asking bids
4C x 0 NAMYATS(strong 4H) 4D= Relay, Spec. Asking bids
4D x 0 NAMYATS(strong 4S) 4H = Relay, Spec. asking bids
HIGH LEVEL BIDDING
Danish asking bids, Cue Bids, SPL, WAITING 3NT, Additional-bids (kind
of CUE - not promising control in bid suit), Special sacrifice-
convention when not vul against vul, LIGHTNER