An email I got from Dominique from the Netherlands.
In the Netherlands we play something like Suction but it's a bit different. I also created a variant to play against 1
[alerted] which happens a lot due to the Dutch Doubleton opening.
The name in the Netherlands is MultiDefense
= diamonds or hearts and spades
= hearts or spades and clubs
= spades or clubs and diamonds
= spades and diamondsThe last 2 are advised to be played with tolerance for the 3 playing level.
If opponents double the bid: Redouble means bid your colour, pass shows a 5 card suit in that colour.
Versus the 1
[alerted] opening I moved some of the bids from the otherwise natural sequence to a more effective position.
= hearts or clubs and spades
= spades or clubs and diamonds
= spades and diamonds
= clubs and hearts