Puzzle of the Week

18. Pecking Order

There are four birds. Given the information below, can you determine their pecking order? Each bird only pecks birds of a lower rank.

1. If Dave pecks Alfie, then Borris pecks Alfie.
2. Alfie pecks either Borris or Dave, but not both.
3. Borris pecks either Charlie or Alfie, but not both.

Answer

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