Benoni Defense, a group of chess openings generally characterized by the opening moves 1.d4 c5 2.d5
The Old Benoni is sometimes called the Blackburne Defense, after Englishman Joseph Henry Blackburne, the first player known to have used it successfully.
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With White, Lie has varied between 1.c4 and 1.e4, with Black he prefers sharp defenses such as the Sicilian Defence and Benoni Defense.