Benoni Defense
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The Benoni Defense, or simply the Benoni, is a chess opening characterized by an early reply of ...c5 against White's opening move 1.d4.
The original form of the Benoni, now known as the Old Benoni, is characterized by
1. Wikipedia
ECO: A43–A44; A56–A79
Moves: 1.d4 c5
Named after: Hebrew: "son of sorrow"
Origin: Ben-Oni oder die Vertheidigungen gegen die Gambitzüge im Schache by Aaron Reinganum (1825)