Blackwood convention when, after hearing his partner's response, the player who bid 4NT wants to stop in 5NT — as this is a forcing bid asking for Kings. A common agreement is that the first non-suit asks responder to bid 5NT. Whenever the first non-suit is a "queen ask", then the next non-suit asks to bid 5NT. This has to be planned in advance as if there is no such space partners have to bid a usually unmakeable slam contract. Blackwood convention In the partnership card game contract bridge, the Blackwood convention is a popular bidding convention that was developed by Easley
Algernon Blackwood 1961-63, "Tales of Mystery" with John Laurie playing Blackwood. Several of his stories were subsequently used in television anthology series such as "Suspense" and "Night Gallery". A radio adaption by Roy Winsor of a Blackwood short story was broadcast as "In The Fog" by the CBS Radio Mystery Theater in August 1977. Introduced by E. G. Marshall, the radio play featured Gordon Gould, Martha Greenhouse, William Griffis, and Ian Martin. Blackwood was a regular contributor to BBC Radio from the 1930s to the early 1950s in which he talked about scary subjects. He also read a number of his own