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Speed KenKen challenges (e.g., solve 6x6 in 2 minutes) test quick math—what’s the hardest speed challenge you completed (tight time, or complex cages), and how did you speed up calculations? Did you ever beat a speed challenge with 10 seconds left, and what’s the most thrilling speed-KenKen moment you had?
Posted : September 21, 2025 7:58 pm