Click below to download PDF versions of Higher Sudoku samples, tips, and instructions.

Higher Sudoku instructions and tips
Medium difficulty Higher Sudoku sample
Random Block Higher Sudoku sample
Plus One Higher Sudoku sample
Two-Unit Higher Sudoku sample

 

 

Click below to download PDF versions of O’Ekaki samples, tips, and instructions.

O’Ekaki instructions and tips
Introductory-level O’Ekaki sample