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BrainDen.com - Brain Teasers


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rocdocmac last won the day on June 6

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About rocdocmac

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  1. Chess Board Puzzle

    ... rotate and/or flip!
  2. Two people cross a river

    Conjoined twins?
  3. Chess Board Puzzle

  4. Mouse & Cheese Cube

  5. Mouse & Cheese Cube

  6. Chess Board Puzzle

    Use the twelve pieces on the left to create a chess board, The pieces may be flipped!
  7. Mouse & Cheese Cube

    Have another go!
  8. Mouse & Cheese Cube

  9. Mouse & Cheese Cube

    Hopefully this one has not appeared before... Suppose 27 identical cubical chunks of cheese are piled together to form a cubical stack, as illustrated below. What is the maximum number of these cheese chunks through which a mouse of negligible size could munch before exiting the stack, assuming that the mouse always travels along the grid of 27 straight lines that pass through the centers of the chunks parallel or perpendicular to their sides, always makes a 90 degree turn at the center of each chunk it enters, and never enters any chunk more than once?
  10. Chess Knight Problem

    Shot! From A to B, yes ... 14, e.g. A or B (see attached Chess Knight.xlsx) From A to anywhere but B, you'll get one more, e.g. C
  11. Chess Knight Problem

    Maximum, not minimum ... more than 12 moves from A to B, inclusive!
  12. Crystal Problem

    Well done all of you! The correct answer is indeed 166 667 166 667 000 000
  13. Chess Knight Problem

    [Not 9]