It appears we are a nation of puzzle obsessives after the phenomenal response to Su Doku. For those Su Doku fiends who are eager for variety, here is a collection of four of the most popular Japanese Logic Puzzles - Hitori, Hashi, Slitherlink, Mosaic. Guaranteed to strain your brain for hours. 200 new puzzles arranged according to difficulty.
The four main puzzles are:
Hitori -a 7x7 grid and the aim is to shade in the squares so that...