Bijan’s 1C Opening Summary:
You can choose to open all minor openings as 1C, but some open 1C with at least 2 Clubs (note may have 4 or more Diamonds). You can also incorporate strong 1NT opening in first or second seat in the 1C opening (allowing use of pre-emptive Mini NT in first or second seat).
After 1C opening, responder use transfer responses as follows:
•1D shows Hearts, opener bids 1H with 3 and 2H with 4 Hearts
•1H shows Spades, opener bids 1S with 3 and 2S with 4 Spades
•1S shows no 4 card major transfer to 1NT, usually 5-7 points
•1NT no 4 card major 8-10 points
•2NT no 4 card major 11-13 points (balance with points distributed)
•3NT no 4 card major 14+ points (balance with points distributed)
•3C/3D/3H/3S natural Very Strong
•2C transfer to 2H usually 6+ Hearts
•2D transfer to 2S usually 6+ Spades
•2H 4-6 shape in Hearts and Spades
•2S 4-6 shape in Spades and Hearts
•After 1C-1S-1NT sequence, responder has the following bid options:
o Pass with 5-7 points
o 2C weak Clubs to be passed
o 2D weak Diamonds to be passed
o 2NT both minors invitational
o 3NT both minors game force
o 3C or 3D natural 10+ invitational
Responder with 8+ points bids twice.
Introduction
In Standard American System, we open 5 card major in order to find a 5-3 or better fit as early as possible and for stronger hand to become declarer. 38% of 1 level suit openings are major opening while the other 62% are minor opening. So minor suits happens a lot more than major opening while objective is still the same; to find a major fit as preference and if possible stronger hand to be declarer.
Those of us who open with 13 points, open 20% of the time while if we open with 11 points, we open 30% of the time which is 50% more!
In modern bridge it is crucial to get into bidding as quickly as possible. Time to open with 13+ points is long past.
In this convention we open all minor openings as 1C (some prefer to open with at least 2 Clubs) with 11+ points (note hand may have 4 or more Diamonds) with transfer responses as core of this system.
Strong 1NT openings happens around 5% of the time. We also incorporate strong 1NT opening in the 1C opening. This will allow 1NT opening to be used for a pre-emptive Mini NT of 8-10 points (in first or second seats only) with Any Vulnerability and yes it is not for faint hearted.
So altogether we open around 75% of the time!!
You can start with 1C opening which can be used with any system and later when you mastered it, consider the Mini NT.