SWISS bids are direct 4
jumps over an opening of 1
These SWISS bids show Balanced hands & (15)16+ HCP with good 4¦5 major support.
If a SWISS bid is made following an opponent's intervention then there can be a shortage in the opponents bid or implied suit.
SWISS bids are not SPLINTERS! Splinters which are not used in this system over Opening bids.
Note: However Splinters
are used over a 1-level suit response. E.g. 1
The difference between 4
promises EXCEPTIONAL trump support usually 7 HCP in the trump suit.
would reassure an opener who is concerned about the honour strength he
holds in his suit - who might well otherwise not attempt a slam.