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Managing Duplicates

Level 2: Using Given Information

In logic, “Given Information” is a fancy name for facts we already know are 100% true. We use these facts as our starting point to solve the rest of the puzzle!

The Goal: Use the facts you are given to find the “twins” or identical states.

Start with what you Know

Sometimes a puzzle tells you exactly what to do for one bulb. This is your “Given Info.”

Given: “The Red light is ON.” Fact: “The Blue light is a duplicate of the Red light.” (They are twins!)

The Red light is ON.

The Blue light is a duplicate of the Red light.

Red
Blue

Spotting the Differences

Not everything is a duplicate! Logic helps us find the “odd one out.”

Clue 1: “Exactly two lights are ON.” Clue 2: “The Green light is a duplicate of the Yellow light.”

Exactly two lights are ON.

The Green light is a duplicate of the Yellow light.

Yellow
Green
Purple

The Twin Tower Puzzle

Can you find the matching pairs?

Clue 1: “The Red light is ON.” Clue 2: “The Blue light is a duplicate of the Red light.” Clue 3: “Exactly three lights are ON.”

The Red light is ON.

The Blue light is a duplicate of the Red light.

Exactly three lights are ON.

The Orange light is OFF.

Red
Blue
White
Orange

Great Job! 🌟

You’re becoming an expert at using what you know to solve the unknown.