Nurikabe book

I’m so much behind the schedule and I just don’t know which book to announce first. This one is very special so here it goes. My first ever Nurikabe book! I’ve been creating them for years, but never published a single one in a book. So, to rectify that, here is a book full of them! And since I’m kind of late with publishing a book of this type, I’ve decided to put only DIFFICULT Nurikabe (aka “Islands in the stream”) puzzles. In this book, you will find:

• 200 difficult Nurikabe puzzles
• difficulty levels: THINKER, BRAIN and IQ!!!
• all solutions of Nurikabe at the back of the book
• Nurikabe solving techniques explained in the introduction

Please please please let me know how difficult you find this book. I could make them even harder, but I think this is just enough.