The Times Ultimate Killer Su Doku Book 8: 200 of the deadliest Su Doku puzzles (The Times Su Doku)

Great that there are 200 rather than 120 puzzles

This one has 200 puzzles so you get more of the really hard ones which I like. My only reason for 4 stars is cos there's still too many of the easy ones! Does no one publish a book that's just the really fiendish??

Love the challenge, great to have target time to aim for.

Bought as an insomnia cure, very effective mostly I'm asleep before I get a number in. Wish I didn't get ink on the sheets though!

Very good

I HAD EXPECTED THESE TO BE HARD. THE FIRST PAGE SAYS 40 MINUTES, TOOK ME 12 AS DID PAGE 31 (DEADLY!) WHICH SAYS 52 MINUTES. I'D LIKE THE JOB OF TESING THEM AS THESE TIMES ARE WAY OUT AND SO NOT A REAL CHALLENGE. PAPER IS VERY POOR QUALITY IF YOU NEED TO ERASE ERRORS.

Excellent

As shown on the lid.