A New Type of Number Puzzle
Solving a Yohaku
Additive Puzzles
2-by-2 puzzles
2-by-2 Beginner
2-by-2 Medium
2-by-2 Advanced
3-by-3 puzzles
3-by-3 Beginner
3-by-3 Medium
3-by-3 Advanced
4-by-4 puzzles
Multiplicative Puzzles
2-by-2 puzzles
2-by-2 Beginner
2-by-2 Medium
2-by-2 Advanced
3-by-3 puzzles
3-by-3 Beginner
3-by-3 Medium
3-by-3 Advanced
4-by-4 puzzles
Fraction and Decimal Puzzles
Additive puzzles
Multiplicative Puzzles
Algebraic Puzzles
Photos of Yohaku in Action
Contact
Yohaku
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