Daily Puzzle: May 5, 2009

Knights and Knaves Challenge 2
Here’s another tough knights and knaves puzzle for you

- Jack says that he and Violet are of different kinds.
- Kevin says that Haydée is a knight.
- Fred says that Kent and Mike are knaves.
- Isabel says that Kathy is a knight.
- Violet says that Kevin is a knave and Mike is a knight.
- Kent says he and Alex are alike.
- Kathy says that if and only if Haydée is a knight, then Mike is a knight.
- Haydée says that Alex is a knight and Violet is a knave.
- Mike says that Violet is a knight.
- Alex says that he is a knight if and only if Jack is a knight.

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