Is this legal?

[Quantumcat]

With my partner I play Spade Twos, where 2C, 2D, 2H show that and spades (2S is normal) and in 3rd seat that and hearts (2H, 2S normal).

 

I would LOVE to to have an agreement where in 3rd seat NV, a 1S opening shows either 5+ spades as usual, or two or less (and less than opening and flattish). This is because if partner had 4+ spades he would have opened something, unless he was flat. Partner then bids where he'd like to play opposite 2 or less spades, and with a spade raise, bids 1NT (or without a spade raise but no 5 card or decent 4 card suit) then if you bid again you show a normal opening. Or you might pass if you don't mind playing in what he bid and there's no hope for game! We also play 10-12 1NT in 1/2 seat NV, so it will be very easy to tell when there is no game, if we were to stick to only doing it NV.

 

This appeals very strongly to my love of psyching, yet it is totally controlled with even less risk than an everyday pre-empt.

 

What forms and levels of competition would this be legal in?

 

Edit: Another pertinent question would be, is this sensible?

[pirate22]

probably be a brown sticker apply to your bridge authority for their views

[MFA]

In international competition this third hand opening would be regarded as HUM (highly unusual methods) and only be allowed in very few events (Bermuda Bowl knockout stage and the European team championships).

 

The 2-openings are no-problem.

 

The rules in Australia I don't know anything about.

[shevek]

No, that's Yellow (HUM) according to ABF Regs

Yellow includes ....

 

" c) An opening bid of one of a major with alternative possible meanings that the hand may be long or short in a specified suit"