Fun and challenging puzzles.
The only reason I am giving this away is that by accident I purchased two copies of this book.
This is one in a series. There is a 'warm up' then A1, A2, A3, and A4. I don't know if it goes up to a B level or not.
This is from Critical Thinking Books & Software company.
The only reason I am giving this away is that by accident I purchased two copies of this book.
This is one in a series. There is a 'warm up' then A1, A2, A3, and A4. I don't know if it goes up to a B level or not.
This is from Critical Thinking Books & Software company.
