Practice on Cuebids
Direct practice for this topic is not mapped yet. Use Cuebids scenarios to build hands for this agreement.
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Last updated
2026-07-17
What is Cappelletti?
Cappelletti is a structured way to disturb an opponent's 1NT opening. Instead of making every overcall natural, the partnership assigns artificial meanings to several two-level calls so shape can be shown quickly.
Versions differ, so the name alone is not enough. In one common structure, 2 starts a one-suiter route, 2 shows the majors, major-suit overcalls show that major plus a minor, and 2NT shows the minors.
The suit overcalls usually show less than a 1NT opening, since stronger hands start with double in classic methods. One-suiters are normally six cards or longer, and most pairs want 5-5, or a strong 5-4 by agreement, for the two-suited bids.
Unspecified one-suiter
- 2 is artificial in common Cappelletti methods.
- Advancer often uses 2 to let overcaller reveal the suit.
Both majors
- 2 commonly shows both majors.
- Advancer chooses hearts or spades, or invites with a fit and values.
Common call structure
The convention is only safe when every call has a written meaning. Two partners can both say Cappelletti and still expect different suits from the same bid.
- Double: penalty or strong hand by agreement.
- 2: unspecified one-suiter in many methods.
- 2: both majors in many methods.
- 2: hearts and a minor in many methods.
- 2: spades and a minor in many methods.
- 2NT: both minors in many methods.
Advancer choices
Advancer first looks for a playable strain. Weak hands usually choose or relay. Stronger hands can invite, ask, or double according to the partnership defense structure.
- After 2, a pass shows a weak hand with long clubs.
- After 2, 2 or 2 by advancer is natural and weak with a long suit in many methods.
- After 2 or 2, a raise of the major is invitational in many methods; a pass just shows tolerance.
- After 2NT, advancer picks a minor: 3 and 3 are signoffs.
Relay after 2
- 2 asks overcaller to name the one-suiter.
- Advancer should be prepared for overcaller to bid any suit by agreement.
Relay passed with diamonds
- With a diamond one-suiter, overcaller passes the relay instead of bidding again.
- The relay itself has already named the right strain, so the auction stays low.
Choosing a major
- 2 shows both majors in common Cappelletti methods.
- Advancer chooses hearts when hearts are equal to or longer than spades.
Asking for the minor
- 2 often shows spades plus an unknown minor.
- 2NT can ask for the minor by agreement.
When to use it
Cappelletti works best with shape. Vulnerability, suit quality, and the opponents' notrump range matter. Many pairs use different defenses against strong and weak notrump openings.
- Be more disciplined vulnerable, especially against a strong notrump.
- Do not use two-suited bids with only 5-4 shape unless partnership style allows it.
- Agree whether Cappelletti applies in direct seat, balancing seat, or both.
- Agree whether the same structure applies over 2NT.
Hand examples
The convention is designed for competitive shape. Flat hands usually defend or pass unless the partnership uses double for a specific strong meaning.
Single-suited overcall
- After right-hand opponent opens 1NT, 2 can show an unspecified one-suiter.
- Advancer relays, and the overcaller bids spades.
Both majors
- This hand fits the both-majors action in common Cappelletti methods, with the values concentrated in the long suits.
- Vulnerability still matters because the opponents have described strength.
Common mistakes
- Writing Cappelletti on the card without writing what each call shows.
- Using the same defense against weak and strong notrump without agreement.
- Overcalling with poor shape and poor suit quality vulnerable.
- Forgetting advancer relay and pass-or-correct responsibilities.
FAQ
Is Cappelletti the same as Hamilton?
The names are commonly used for very similar defenses to 1NT, but exact structures can vary by partnership.
Does Cappelletti apply over weak notrump?
It can, but many partnerships use different defenses against strong and weak notrump ranges. Write the agreement down.