🧩 Logic Puzzle
Kidoku
Sudoku-style logic puzzles designed for kids. Fresh daily, two difficulty levels.
No math required — just pure logic thinking!
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4 × 4 Kidoku
BEGINNERPlace numbers 1–4 in each row, column, and 2×2 box. Perfect for ages 5–8.
Play 4×4 →🩷
6 × 6 Kidoku
INTERMEDIATEPlace numbers 1–6 in each row, column, and 2×3 box. Perfect for ages 8–12.
Play 6×6 →How to Play Kidoku
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Look at the grid
Some cells already have numbers filled in — these are your hints.
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Fill in the blanks
Each row, each column, and each box must contain every number exactly once.
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No repeats
You cannot use the same number twice in any row, column, or box.
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Complete the grid
Fill every empty cell correctly to solve the puzzle!