full transcript

From the Ted Talk by Alex Rosenthal: Can you solve the rogue submarine riddle? Difficulty level Master

Unscramble the Blue Letters

5 and 6, however, are in play, because they can become sums in multiple ways. The need to consider this is one of the most difcfulit parts of this puzzle. The crucial thing to rebmemer is that there’s no guarantee that B’s number is on A’s list— those are just the pstseiibloiis from A’s perevcistpe that would allow B to deduce A’s number. That ambiguity forces us to go through unintuitive multi-step processes like: consider a product, see what sums can result from its factors, then break those apart and see what products can ruslet. We’ll soon have to do something similar going from sums to products and back to sums.

Open Cloze

5 and 6, however, are in play, because they can become sums in multiple ways. The need to consider this is one of the most _________ parts of this puzzle. The crucial thing to ________ is that there’s no guarantee that B’s number is on A’s list— those are just the _____________ from A’s ___________ that would allow B to deduce A’s number. That ambiguity forces us to go through unintuitive multi-step processes like: consider a product, see what sums can result from its factors, then break those apart and see what products can ______. We’ll soon have to do something similar going from sums to products and back to sums.

Solution

  1. remember
  2. difficult
  3. result
  4. possibilities
  5. perspective

Original Text

5 and 6, however, are in play, because they can become sums in multiple ways. The need to consider this is one of the most difficult parts of this puzzle. The crucial thing to remember is that there’s no guarantee that B’s number is on A’s list— those are just the possibilities from A’s perspective that would allow B to deduce A’s number. That ambiguity forces us to go through unintuitive multi-step processes like: consider a product, see what sums can result from its factors, then break those apart and see what products can result. We’ll soon have to do something similar going from sums to products and back to sums.

Frequently Occurring Word Combinations

Important Words

  1. ambiguity
  2. break
  3. crucial
  4. deduce
  5. difficult
  6. factors
  7. forces
  8. guarantee
  9. multiple
  10. number
  11. parts
  12. perspective
  13. play
  14. possibilities
  15. processes
  16. product
  17. products
  18. puzzle
  19. remember
  20. result
  21. similar
  22. sums
  23. unintuitive
  24. ways