Deduction

Four suspects now. The clue count goes up, but so does the noise. Medium cases include evidence that looks damning but leads nowhere — red herrings designed to pull you toward the wrong suspect. You need to check your reasoning against all the evidence, not just the clues that support your initial hunch.

Elimination becomes the primary tool. Instead of asking "who looks guilty?", ask "who definitely didn't do it?" Cross off suspects with solid alibis. When you're down to two, look for the single piece of evidence that separates them. It's always there.

The hard level introduces five suspects and evidence that requires chaining multiple clues. Get comfortable with elimination first.