Butterfly Killer Sudoku: 100 Medium Overlapping Multi-SumDoku Puzzles

Description

Butterfly Killer Sudoku
100 Medium Overlapping Multi-SumDoku Puzzles

Take your Sudoku skills to the next level with a smarter, deeper logic challenge!

Butterfly Killer Sudoku (Medium) blends the elegance of classic Sudoku with the strategic depth of Killer Sudoku sum cages and a four-grid overlapping butterfly layout. Each puzzle consists of four interwoven 9×9 grids, where progress in one grid directly affects the others. No grid can be solved in isolation — only careful analysis of the entire structure reveals the unique solution.

Designed for solvers who are ready to move beyond the basics, this collection delivers satisfying complexity without relying on guesswork.

What’s Inside This Book:

✔ 100 Butterfly Killer Sudoku puzzles
✔ Medium difficulty level — balanced challenge for confident solvers
✔ Four overlapping 9×9 grids in every puzzle
✔ Killer Sudoku cages with thoughtfully designed target sums
✔ Large, easy-to-read grids for comfortable solving
✔ If you suddenly need help, you will always find answers to sudoku on the next page.

Why This Book Is Perfect for You:

Overlapping grids demand deeper logical connections
➕ Killer Sudoku sums add multi-layered reasoning
Encourages advanced deduction techniques
✏️ No guessing — every puzzle is logically solvable
📘 Ideal for daily brain training and focused relaxation

If you enjoy Sudoku variants that challenge your reasoning, reward patience, and deliver consistent “aha” moments, Butterfly Killer Sudoku – Medium is the perfect next step.

More logic. More interaction. More satisfaction.