Search for a word in a 2D board of characters.
Input: board = [["C","A","A"],["A","A","A"],["B","C","D"]], word = "AAB"
Output: TRUE
Explanation: DFS traverses adjacent matching letters perfectly, finding "AAB" without improperly revisiting any cells.
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1 answer published. Last candidate submission on Oct 10 2026, 4:15am PDT. Interview question asked to Software Engineers interviewing at CodeSignal, Canon, Innovaccer and other companies. Original question asked: Search for a Word in a 2D Board. Question last reported by a candidate interviewing at Brex for a Software Engineer interview on Sep 18 2026, 6:12am PDT.