 The hand patterns 5-4-2-2 (an example of a two-suiter) and 6-3-2-2 (a single-suiter) are generally referred to as "semi-balanced".In natural bidding systems, balanced hands within specified high card point (HCP) ranges are generally opened with a notrump bid, or rebid in notrump.In the Netherlands, a bidding system called "Saaie klaver" (""Boring club"") that reserves the 1 opening for all balanced hands ("boring hands"), has gained some popularity.