200 extremely difficult hand-created puzzles at an irresistibly low price point of just $5.95. Tougher puzzles, better price. 200 hair-tearing Sudoku puzzles at an irresistibly low price point of just $6.95! From master gamesmith Arnold Snyder, author of seven books on Sudoku, comes a collection of extremely difficult puzzles guaranteed to twist Sudoku players' brains into knots! These are not the puzzles seen in daily newspapers, these are brutally awesome ones done by the author's own hand (not computer generated), with the goal of having the readers frazzle their nerves and brains as they attempt to solve the Sudoku.
Ball-Busting Sudoku : 200 Extremely Difficult Hair-Tearing Puzzles