Bijan's 1C - The full system

In this convention we open all minor openings as 1C with 11+ points (some choose to open with minimum 2 Clubs) with transfer responses as core of this system.

 

Using transfer responses,

• 1D shows hearts, opener

  • With 3 hearts bids 1H and if interfering bid, we x (support x)

  • With 4 hearts bids 2H (with minimum hand bid 1H & support H later)

  • With <3 hearts and 4 spades bids 1S

  • With balance hands no 3 hearts or 4 spades bids 1NT

  • With <3 hearts, unbalanced and a long minor bids the long minor

  • With <3 hearts, strong hand and a long minor bids that at 3 level.

 

• 1H shows spades, opener :

  • With 3 spades bids 1S, again if interfere by opponents x = support x

  • With 4 spades bids 2S (with minimum hand bid 1S & support later)

  • With balance hands no 3 spades bids 1NT

  • With <3 spades, unbalanced and a long minor bids the long minor

  • With <3 spades, strong hand and a long minor bids that at 3 level.

 

• 1S shows no 4 card major inviting opener to bid 1NT (responder with 5-7 points will pass)

Follow up sequences after 1NT can show weak C or D, invitational or game force in both minors or invitational in C, D  

• Pass with 5-7 points

• 2NT both minors invitational, after this 3H/3S minorwood for C/D

• 3NT both minors game force (opener to decide if pass 3NT or look for game/slam in minor using 1430 RKCB minorwood 4C/4D

• 2C or 2D weak C and D

• 3C or 3D natural 10+ invitational 

• 2C and 2D responses are transfer to Hearts and Spades (we do this when we have 6 cards). If very little point with 5 card we can use with intention to pass

• 2H/2S shows 6-4 shape in S-H or  H-S and at least 8 points (we bid the 4 card suit)

• 3C/3D/3H/3S natural Very Strong

• 1NT no 4 card major 8-10 points

• 2NT no 4 card major 11-13 points (balance & points distributed)

• 3NT no 4 card major 14+ points (balance & points distributed)

 

When partner opens 1C, we announce it: 0 plus or 2 plus, UNUSUAL. This is because opener may have 4+ diamonds.

 

Responder with 5-5 or 5-4 or 4-5 in S-H starts with 1D and if opener does not accept or does not bid S, responder can bid S.  This is clearly showing 5 card in spades as opener have denied 4 spades.

2C and 2D bids (transfer to H or S) can be used in variety of situations: With very weak 6 or even 5 card suits with intention of passing. With 6 card suits when we want to invite (by bidding 2NT) or game force by bidding 3NT. With 7 cards suit we can raise to 3H/3S after transfer.

 

1C Opening advantages

• We find any combination of major fit

  • For example 5-3 fit when responder has 5 card in major and only 6-9 points.  Usually hand is played at 1NT (1C/D-1H (or S)-1NT pass

  • 6-4 combination

  • Preempt 2 level via 2C/2D transfers with intention of passing. Opponents and partner don’t know we will pass.  By that time it maybe late for them to come into the bidding. A direct weak jump overcall give it away straight away

  • With 6 cards in major and invitational or game force, we can show it after partner accepted the transfer by raising, bidding 2NT or bidding 3NT

• We open with 11 points

• Opener more often becomes declarer

• Opponents bidding become more difficult with artificial bids, such as our 1S bid, often we are bidding their suits.  They need to know how to defend against it

• We can bid and pass a 2C or 2D when responder has long C or D and is weak

• We can let declarer to play 1NT when we have 5-7 points and no 4 card major. Again by bidding 1S which is likely to be opponent’s suit making it more difficult for them

• 1NT and 2NT responses will be showing 8-10 and 11-13 points respectively with no 4 card major

• Invitational or game force in minors can be established through 1C-1S and subsequent bidding sequences

• We can describe powerful 6-4 distribution in majors

 

 

If there is interference:

 

X = stolen bid (for 1D and 1H only)

If interference is 1D or 1H, System is on & X is stolen bid

If interference is 1S or at 2 level, System if off