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The classic mine-clearing puzzle with a cybersecurity twist. Neutralize virus nodes hidden in a server grid. Use number clues to deduce safe cells. Three difficulty levels from 9×9 to 16×30.
Logic skills transfer to business.
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Left-click to reveal a cell. Numbers show how many adjacent cells contain mines. Right-click to flag a suspected mine. Clear all non-mine cells to win. The first click is always safe.
Start with corners and edges — they have fewer neighbors, making deduction easier. Flag obvious mines immediately. Look for "1-2-1" and "1-1" patterns along borders. When stuck, find cells that are provably safe using overlap logic.
Brooker, H. et al. (2019). "The relationship between the frequency of number‐puzzle use and baseline cognitive function in a large online sample." Int J Geriatr Psychiatry, 34(7), 932-940.