Even Higher Sudoku: More Challenges from the Master (Paperback)
Sudoku continues to enthrall the world, but many of the offerings are still computer-made beginner-level puzzles. The new killer sudoku in Even Higher Sudoku pick up where the internationally acclaimed puzzle master Tetsuya Nishio left off. Experience the handmade pitfalls and five new diabolic variations that will refresh and deepen your griddy love.
About the Author
Tetsuya Nishio, world champion of number-logic puzzles, reigns as the single most important figure in Sudoku in Japan. Nishio is also the inventor of O'Ekaki, or "Paint by Numbers" puzzles.