Clues and chances

• How can you tell what the clues really prove?

  A clue can force a conclusion, rule it out or leave it open. The hard part is keeping those apart when one answer simply sounds right.

• How can a few examples reveal a pattern?

  A few examples reveal a pattern by ruling out rules that don’t fit. The most useful example is one that splits the rules still standing.

• Why can a little evidence mislead you?

  A few tries can come out lopsided by chance. A choice you never try can’t show what it pays, and a moved decision line trades misses for false alarms.

These pages explore the ideas behind the puzzles. They don’t interpret your levels, your answers or anyone’s health. How to read your results · Sources