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Bebras 2022 - Level 6 Question 5

BEBRAS · Bebras 2022 - Level 6

Question 5

The figure shows the beaver's location, its home and the dental clinic. The beaver wants to visit the clinic and then return home.

Question illustration

The beaver moves through cells horizontally or vertically. At each step it has only two choices: continue straight or turn right.

Can the beaver reach the clinic and then go home?
  1. The beaver cannot make the journey under these rules.
  2. The beaver can do so by turning right exactly 4 times.
  3. The beaver can do so by turning right exactly 2 times.
  4. The beaver can do so by turning right exactly 6 times.