4x4 Alphabet
The 4x4 Alphabet Book is perfect for those kids looking for a fun and challenging puzzle.
It contains 30 sudoku problems of 4X4 Alphabet Sudoku
It is ideal for kids just starting with sudoku problems, as it will help them understand how to solve different problems.
The book contains problems on 3 levels - Easy, Medium and Hard.
This book is designed to be an entertaining way to spend your time online, and a great way to test your problem-solving skills.