4 x 4 Sudoku for Kids: 150 Puzzles: Brown, Anne: 9781523342693: Amazon.com: Books
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Solve the following 4 × 4 Sudoku. 3 marks
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Logical Thinking Puzzles: 4×4 Sudoku | Teaching London Computing: A RESOURCE HUB from CAS LONDON & CS4FN
The Sudoku With Only 4 Known Solvers - YouTube
Free Kid Sudoku Puzzle: Level 4 Page 4
The Math Behind Sudoku: The 4 by 4 Case
Logical Thinking Puzzles: 4×4 Sudoku | Teaching London Computing: A RESOURCE HUB from CAS LONDON & CS4FN
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