Crossword clues for the word: HARBLOCK The word HARBLOCK has appeared as an answer to at least 1 crossword clue on different crossword puzzles. Crossword clues for HARBLOCK Showing 1 to 1 of 1 results Clue(s) Subject of the Final Jeopardy! question that knocked out Ken Jennings after a record 74 wins... or a hint to this puzzle's theme