de MAF-fe TUINMAN
While you probably do not understand this name we shall explain this first:
"MAF-fe=MAF(adjectives sometimes have meaningless extensions, fe, in dutch)
So "de MAF-fe tuinman" is a convention inspired by mr Gardener's idea, to use the 1NT overcall of an opening bid as a multi-way bid for hands that otherwise cannot be described adequately in a particular system.
In MAF we have jump overcalls for weak 1-suiters, normal overcalls for normal 1-suiters, the Ghestem convention for weak 2-suiters and the take out double for strong 2-suiters. MAF does not have yet proper overcalls for very strong hands.
To make the "overcall complex complete", the properties for the two-way "de MAF-fe tuinman" must be:
- strong balanced hand with more then 15 HCP's, not necessarily stops in the opening suit.
rebid: 2/3 in the own suit, or partner's suit.
- strong one suited hand in a yet unknown suit and more then 15 HCP's.
rebid: 2NT or or his partner's suit.
The partner of the 1NT overcaller must answer. He has two possibilities:
- a relay of 2§, showing one of next types of hand:
- any weak hand <6,
next response: PASS
- balanced hand, denying any 5-card, >=6,
next response: depends on strengthand on rebid partner: natural response
- one of the four Jacoby tranfers (a 5-card minor is sufficient here!), just as if the overcall had been a 1NT opening bid.
The rebids from the "MAF-fe TUINMAN caller" are never forcing. If his partner holds >=10 hcp's he must try to reach the game og course.