perplexus.info :: Liars and Knights : Knaves! 2

Knaves! 2 (Posted on 2013-10-22)

You meet three people, A, B, and C. One is a knight, one is a liar, and one is a knave.

A:I am a knave.
B:A is a knave.
C:I am a knave.

Who is a knight, who is a liar, and who is a knave?

See The Solution Submitted by Math Man

Rating: 3.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

Easy but interesting solution.

| Comment 1 of 3

The key is that either a liar or a knave can say "I am a knave" but a knight cannot.

Therefore B is the knight and correctly identifies A as the knave, and so C is the liar.

Posted by Jer on 2013-10-22 13:49:12

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