in bidding, beasley adopted many of culbertson's ideas, but was displeased with the strong twos and their negative response of two no trumps. as a result, so he claimed, he was the inventor (in 1936) of the artificial strong two clubs opening bid with its negative response two diamonds. for many years all the british bidding systems used this method of dealing with strong hands: acol (both standard and benjaminised), cab, two clubs and baron systems all used it. however, it is fair to mention that others have also claimed authorship of this fruitful idea.