Kaplan-sheinwold

Kaplan-Sheinwold

The Kaplan-Sheinwold (or "K-S") bidding system was developed and popularized by Edgar Kaplan and Alfred Sheinwold during their partnership, which flourished during the 1950s and 1960s. K-S is one of many natural systems. The system was definitively described in their 1957 book How to Play Winning Bridge, later reissued in paperback and still later revised.