| Blackwood- A method used to locate Aces in consideration of 
    making a slam bid.
Blackwood Slam Bidding - Part 1
     
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Typically, Blackwood is used when either partner realizes 
    partnership has a combined 
    strength to explore slam and a good suit fit is found.  In response to 
    a 
    bid of 4 Notrump (Blackwood) , the responder makes a 
    conventional call according to number of Aces held:   
          
        | Bid | Aces Held |  
        | 5C | 0 (or 4) |  
        | 5D | 1 |  
        | 5H | 2 |  
        | 5S | 3 |  
        | 5N | 2 w/useful void |  
        | 6 in Void Suit | 1 w/void below Trump suit |  
        | 6 in Trump Suit | 1 w/Void above Trump Suit |  After responder shows Aces, 4 Notrump Blackwood bidder may:- Signoff at the 5-level in trump suit
 - Request partner to bid 5 Notrump by bidding at 5-level in unbid suit
 - Bid 5 Notrump to ask responder to now show Kings (as above)
 Also 
    see books on
     
        Slam and other slam conventions:
     
        1430,
        Baby Blackwood, 
        
        Blackwood, Controls,
Exclusion Blackwood/Voidwood,
Gerber,  
        Grand Slam Force,
Jacoby 2 Notrump,
Key Card Blackwood, 
Kickback,  
        Last Train,  NAMYATS,
Pick a Slam,
Quantitative Notrump Bid,
    Rolling Blackwood,
Serious 3 Notrump,
        Slam Try - Stayman,
Splinters, 
Opener Jump Shift,
        Specific Kings,
        Specific Suit Ask,
Strong Jump Shift, and legacy treatments as 
        Roman Asking Bids,
        Roman Blackwood,
        Roman Gerber.  Slam 
        treatments 
    also include interference of 
    an overcall by opponents, as 
        Negative Slam Double,
        DOPI,
        DEPO, ROPI. 
          
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                  | The ACBL nominated Easley Blackwood to the "Hall of Fame", 
                  offering the following testimonial: 
 Easley Blackwood was a power in contract bridge and the 
                  American Contract Bridge League for more than 60 years. His 
                  fertile 30-year-old mind spawned ideas and innovations about 
                  the game and, as a respected elder statesman in his70s and 
                  80s, he was still collecting the many honors and accolades the 
                  game has to bestow.
 As a writer, teacher, lecturer, administrator and 
                  innovator, Blackwood has name recognition throughout the 
                  world. His name became a household word because one of his 
                  early inventions, an ace-asking bid that became known as the
                  Blackwood convention, caught on like wildfire with 
                  the rank and file players while confounding the experts.  He played bridge, he wrote about bridge, he taught bridge, 
                  and he directed bridge games in his own studio and aboard many 
                  cruise ships. A legendary storyteller, he was one of the 
                  game's most popular lecturers.  One of his greatest contributions came in 1967 when he was 
                  persuaded to take the job of executive secretary and general 
                  manager of ACBL. His long experience in the business world was 
                  put to work to save a declining ACBL during the three years he 
                  agreed to serving in this position.  Blackwood put the ACBL on a sound financial basis and 
                  worked out a revision of the masterpoint plan for tournaments 
                  and clubs, correcting inequities that had existed for years. 
                  He gained the admiration, respect and gratitude of the 
                  headquarters staff, of the Board of Directors and of ACBL 
                  members everywhere.  But he is still best known for his “little ace-asking 
                  convention.” Six decades after Blackwood submitted his 
                  brainchild to Ely Culbertson's magazine, The Bridge World
                  – and was turned down – it is still the game's best known 
                  convention. The Bridge World responded, “While the 
                  suggestion is a good one, the 4 NT bid will remain informative 
                  rather than interrogative . . .”  But the convention caught on from player to player and was 
                  soon widespread throughout the bridge-playing world. In 1949 
                  Culbertson gave up and said, when a pair announced it was 
                  playing the Culbertson System, it should be assumed the 
                  Blackwood convention was being played.  The voice of the people had prevailed over the voice of the 
                  experts. The Blackwood convention appeared in 17 different 
                  languages and 57 books by the time Blackwood published the 
                  convention in his own Bridge Humanics in 1949.  Blasckwood was born in Birmingham AL in 1903 and went to 
                  work as a clerk with Metropolitan Life Insurance Company at 
                  the age of 17. At 26 he was made manager of the Decatur IL 
                  office. In 1930 he was transferred to Indianapolis , where he 
                  managed the Metropolitan office for 34 years.  After his early retirement in 1964, Blackwood established a 
                  plush bridge club in Indianapolis and enjoyed a gratifying 
                  career as lecturer, teacher and bridge cruise conductor.  He already found time to write several bridge books, a lot 
                  of magazine articles and a syndicated daily newspaper column. 
                  His monthly column on basic bridge appeared in the 
                  Bulletin for almost two decades and formed the basis for 
                  his 1978 tome, Play of the Hand with Blackwood. In 1980 he was elected ACBL Honorary Member of the Year. He 
                  was a longtime member of the National Goodwill Committee and 
                  the National Laws Commission. He was Honorary Member of the 
                  American Bridge Teachers Association in 1978. In 1984 he 
                  received the International Bridge Press Association 
                  Personality of the Year Award.  |  |  |