ISBN-13: 9781495496035 / Angielski / Miękka / 2014 / 82 str.
This second book contains 192 Futoshiki of different sizes (6X6, 7X7, 8X8 and 9X9) and different levels of difficulty. The book is arranged such that each section starts with the easiest puzzles and gradually finishes with the most difficult puzzles. This accommodates both the experienced solver as well the novice. But judge them for yourself and again take the Futoshiki challenge