Buffalo Soldier Sudoku Series
Tesla's Blueprint Sudoku
Electricity, Invention, and the Architecture of Innovation
The fourth volume contains 80 medium-difficulty Sudoku challenges in a spacious 7 × 10-inch format, combining focused recreation with a Tesla-inspired theme of invention, experimentation, and disciplined thinking.
Amazon retail shown in the July 2026 catalog: $12.99. Price and availability may change.
Who it is for
Built for practical use.
Independent solvers, families, libraries, recreation programs, waiting areas, and cognitive-engagement settings.
- Eighty themed Sudoku challenges
- Designed for sustained focus and logical reasoning
- Progressive series format
- 106-page paperback
- Published July 28, 2026
- Trim size: 7 × 0.24 × 10 inches
