
The book again contains a mix of different types of problem to give the old grey matter a workout. The puzzles start at 1* difficulty, working up to 5* as you work you progress through, but as with the previous book I found some of the 2* problems completely beyond me while some of the more difficult problems of a different type were still relatively simple. I did find some of the solutions completely incomprehensible and couldn't see how you could solve them without being a maths whizz, and others didn't have a full explanation of why the answer was correct where I would have appreciated it.
Although I think there is a bit of room for improvement by and large I am enjoying this series as something a bit different for the moments when I want a distraction but don't have the time or inclination to pick up a novel. If you like a mental workout you could do far worse than picking up one (or several) of these.
Format: Kindle, review copy
Publisher: Grabarchuk Puzzles
My Rating: 3*
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