Brain Training Puzzles. Over 150 Stimulating Puzzles

Over 150 mind-bending puzzles are included in this brain-training collection.

The mix of puzzles is designed to present a host of mental challenges and give your brain a great workout. As you progress through the book, the difficulty increases so you can test and build your skills as you go.

Puzzle types include:
- Domino Placement
- Calcudokus
- Hidatos
- Number links
- Skyscrapers
- Slitherlinks, and many more.