Code-Breaker: Printable Secret Code Logic Game for Two Players
Children play a classic deduction game on paper. The codemaker hides four different symbols and the codebreaker guesses, using pegs that show right symbol, right place or right symbol, wrong place. Training puzzles prove only one code fits the clues, then a game board and flap let two agents play for real.
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Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack
This is page 5 of the pack. Ages 9-10

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A maths pack with your child's name in it: pictures that explain, practice at three levels, puzzles and story sums about them. Print a new set whenever they finish.
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About this worksheet
- Topic:
- Code-breaking deduction game
- Pack:
- Page 5 of 24 in Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack.
How to use this worksheet
Read the rules together and solve the two training codes first. Then play a round: one hides the code behind the fold-down flap, the other has eight guesses. Swap roles and compare how many guesses each used.
Materials needed
- Pencil
- Scissors
- Printed board (one per round)
Extension activities
- 1Play a round after dinner.
- 2Make a harder code with five symbols.

Written by
Hemsweta Jain · Teacher Cheena
MBA and Early Childhood Educator, teaching since 2014 · Founder of RaisoActive, Mumbai
Every RaisoActive worksheet is designed and checked by the founder before publishing.
Published · Last reviewed
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