Forcing Pass, or Thy Opponents Shall Not Steal
                In last month’s newsletter we discussed forcing bids. Yet we 
                have all been in situations where we believe our call of pass 
                should be forcing, and hope our partner sees it the same way. 
                Let’s discuss this in more depth. By definition, a Forcing Pass 
                occurs in a competitive auction and allows our partner to choose 
                the most profitable option. The options typically include a 
                choice between rebidding in the agreed suit, doubling opponents' 
                bid, allowing partner to redouble, jumping with a strong hand, 
                making a conventional response and the like. 
                Partnership mis-understandings on the Forcing Pass seem to 
                occur at all levels, stressing the need for us all to develop 
                sound agreements. Fundamentally, we find partnership agreements 
                fall in two camps: Scientists and the Naturalist (some of you 
                will recall the famous grudge match with this
                
                namesake) 
                Before we jump in, be aware either approach may employ one of 
                two distinct methods.
                METHOD 1
Bid shows a good offensive hand
Double shows good defensive hand
Pass implies neither of these hands
METHOD 2
Bid shows good offensive hand
Pass shows a fairly good offensive hand
Double implies neither of the above
                While many players embrace METHOD 1, some partnerships 
                (notably Mechkstroth-Rodwell) prefer METHOD 2. 
                At an rate, while Naturalist methods vary, a typical 
                agreement might include: 
                After we open, responder bids at the 2 level and opponents 
                bid 3 Notrump or above, either partner’s pass is forcing. 
                Additionally, the Forcing Pass is the strongest action showing 
                slam interest and at least a second round control. 
                Grand Life Master Gene Simpson frequents the NABC playing 
                circuit with his “for hire” clients, always placing in the Top 
                50 annual Masterpoint ranking. Gene enjoys successes as a 
                Naturalist, generously sharing his Forcing Pass approach with us 
                here (contact Gene at 415-250-2488, gsimpsongene@yahoo.com): 
                A. Forcing passes apply when your side bids a game or higher 
                and the other side sacrifices: 
                1. You bid a vulnerable game
2. You bid a non vulnerable game voluntarily
3. The opponents have preempted
B. There are five options at the 5 level:
1. Cuebid is a slam try - strongest action
2. Pass and pull partners double - also a slam try
3. Bid 5 level - extra values but no slam interest
4. Pass – offers partner to bid five with extra values
5. Double - worst hand based on auction
                C. Cuebid with an outstanding hand, showing first round 
                control and interest in slam. 
                D. “Pass and pull” is uncommon. Be aware when you pass, 
                partner doubles, you need to pass unless you have slam interest
                
                On the side of the Scientists, in the
                
                Okbridge “Spectator” Marc Smith featured a series of 
                Forcing Pass articles (6/01, 12/01, 1/02). Another Scientist, 
                Eddie Kantar authored the definitive 
                
                Forcing Pass book and wrote a series of articles for
                
                Bridge Today (2/05, 3/05, 5/05). Augie Boehm's 
                
                Private Sessions book also has useful theory on conventional 
                uses of the pass. 
                Naturally, Scientists methods for Forcing Pass bids vary 
                considerably, possibly including: 
                1. Opponents have made an obvious sacrifice bid 
                2. Your side has voluntarily bid game based on strength, not 
                merely distributional values. This is particularly true when 
                partner's pass allows you to evaluate the tradeoffs of doubling 
                for penalty, especially when opponents are vulnerable, as 
                opposed to bidding at a higher level - perhaps exploring slam
                
                3. After 3 or 4 level opening preempt by Left Hand Opponent 
                in first or second seat, double by partner, game raise by Right 
                Hand Opponent, our pass is forcing except when opponents are 
                vulnerable (assuming a sane RHO has values) 
                4. Your side has established a baseline contract level 
                exploring game or slam, but not yet reached that threshold and 
                opponents have interceded in the auction 
                5. A pass over opponents' high level obstructive bid 
                typically shows a first round control (Ace or void). The 
                threshold for “high level” may be the 5 or 6 level, depending on 
                agreements 
                6. Opponents have doubled a cuebid on your side 
                7. Opponents are retreating by bidding multiple suits 
                (usually up the line), where your partnership has repeatedly 
                doubled 
                8. Pulling partner's penalty double shows strong interest in 
                slam 
                Scientists have more scenarios (and memory work) with less 
                catch-all guidelines such as a universal “whenever opponents bid 
                above our 3 Spade call and our bids are constructive, our 
                subsequent pass is forcing.” Regardless of your approach, 
                consider
                
                Environmental Factors – particularly vulnerability, freak 
                distribution, and offensive/defensive tricks. 
                Here are several common situations:
                2C – (any) – P – (any);
P
                When opener has near-game values such as a strong 2 Club 
                opener showing 22+ points, many play a subsequent pass is a 
                Forcing Bid; lacking a better bid, responder can double to keep 
                the auction alive. However, when opener begins with a 2 Notrump 
                bid showing 20-21 point, subsequent passes are not forcing.
                1S – (P) – 2N – (3D)
P
                Responder’s 2 Notrump bid is game-forcing so opener's pass is 
                forcing. Note – see
                
                Jacoby 2 Notrump to review alternative methods after 
                interference 
                1D – (1H) – 1S – (P);
3D – (3H) – 3S – (4H);
P
                Assuming you recognize responder’s 3S rebid as establishing a 
                game force (opener jumps, responder rebids own suit), opener is 
                making a Forcing Pass inviting responder to double or bid 4S 
                with great Spades.
                1D – (1S) – 2D – (2S);
1H – (2D) – 2H – (3D);
                Here, opener can make a forcing bid by cuebidding opponents’ 
                suit or calling a new suit. When opener (the stronger hand) bids 
                a new suit at the 3 level, the call is invitational. Jumping in 
                a new suit at the 4 level subsequently establishes a Forcing 
                Pass if necessary. Opener’s jump to game has the same effect. 
                Note: some play this treatment only with adverse vulnerability 
                based on the risk-reward differential. At any rate, if opener 
                takes another path, as rebidding at the 3 level, belated opener 
                passes are not forcing. Note: many also play 
                Maximal Doubles at the 3 level. 
                Yet rules like this one should not be thought of as 
                iron-clad. Contrast these bids:
                W     N     E     S
1H – (1S) – 2H – (2S);
4H –  (P) - P  - (4S);
P
1H – (2C) – 2H – (3C);
4H -  (P) -  P - (5C);
P
                It is unlikely South is “walking 
                the dog” with extra values on the above auctions. Apparently 
                South is making a sacrifice bid so opener’s pass is definitely a 
                Forcing Bid in these auctions. However, South may indeed be 
                walking the dog on this auction:
                W     N     E     S
1H – (P) – 2H – (2S);
3D – (P) – 4H – (4S);
P
                The responder may be bidding game based on an anticipated 
                double fit in the red suits after opener's
                
                Help Suit Game Try. Realizing this, opponent South may 
                upgrade a two-suited black hand and solely bid game. Thus, the 
                meaning of opener’s pass will vary by partnership agreement 
                (again, some play forcing only with adverse vulnerability). As 
                an aside, when your side bids a lower suit rank as Hearts over 
                their Spades, it may not be wise to “advertise” a possible 
                double fit – smart opponents certainly enjoy such useful 
                information. 
                In some situations, the Scientists liberalize their 
                conventional gadgets to replace the meaning of the Forcing Pass 
                or even the double. Consider this auction:
                 W     N     E     S
--     --    (P) - P
(1D) - 1H - (2H) - P
(3C) - 4H -  (P) - P
(5D) -  ?
                Should a double be purely for penalty here, or is it a 
                cooperative (optional) double asking partner to consider a 5H 
                sacrifice with an offensive hand? Scientists point out the 1H 
                overcall shows defensive values, not immediately making a 
                preemptive jump to 4H. So a common treatment is “DSI”, 
                asking partner to Do Something Intelligent! That is, “Partner, 
                with defensive values of your own, let the double ride, 
                otherwise think strongly about supporting my suit.” 
                So we've seen the Forcing Pass agreements can have many 
                subtleties, particularly for the Scientists. Regardless of your 
                approach, be sure your partnerships have clear agreements. 
                Finally, here's what the
                
                Bridge World Standard says about the Forcing Pass: 
                1) If a two-club opening is overcalled, responder’s pass is 
                forcing at every level - responder’s double shows 
                double-negative strength 
                2) When a forcing bid is doubled and there is no contrary 
                explicit system agreement or logic from the auction, a pass is 
                forcing and a redouble is to play (suggests a contract) 
                3) After a negative response to two clubs and an overcall, 
                opener’s pass is forcing 
                4) After 1any - (X) - XX - (bid); opener’s (or responder’s) 
                pass is forcing everywhere 
                
                
                You're always welcome to come back to BridgeHands Encyclopedia 
                to review the Forcing Pass