Blackwood convention Blackwood convention In the partnership card game contract bridge, the Blackwood convention is a popular bidding convention that was developed by Easley Blackwood. It is used to explore the partnership's possession of aces, kings and in some variants, the queen of trumps, to judge more precisely whether slam is likely to be a good contract. Two versions of Blackwood are common: "standard" Blackwood, developed by Easley in 1933, and "Roman Key Card" Blackwood ("RKC" or "RKCB"), named for the Italian team which invented it. Standard Blackwood enables one partner to count partnership aces and kings in general. Key card variants
Mackenzie Blackwood contract with the New Jersey Devils, who drafted him in the 2015 NHL Entry Draft, on December 30, 2015. After playing for the Devils American Hockey League (AHL) affiliate, Blackwood was assigned to the Adirondack Thunder, the Devils ECHL team, on January 1, 2018. Blackwood began the 2018–19 season with the Devils AHL affiliate, Binghamton Devils. He was recalled to the NHL on December 17, after goaltender Cory Schneider was placed on injured reserve. Blackwood made his NHL debut the following night in a 7–2 loss to the Toronto Maple Leafs. He replaced started Keith Kinkaid in the third period